Upgrade to jemalloc 5.3.0

* Regenerate configure script sccording to deps/README
* update iget_defrag_hint by following changes to arena_dalloc_no_tcache

4 files changed, 5816 insertions, 3136 deletions

diff --git a/deps/Makefile b/deps/Makefile
index c1796941b..34656201d 100644
--- a/deps/Makefile
+++ b/deps/Makefile
@@ -106,7 +106,7 @@ endif
 
 jemalloc: .make-prerequisites
 	@printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR)
-	cd jemalloc && ./configure --disable-cxx --with-version=5.2.1-0-g0 --with-lg-quantum=3 --with-jemalloc-prefix=je_ CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)" $(JEMALLOC_CONFIGURE_OPTS)
+	cd jemalloc && ./configure --disable-cxx --with-version=5.3.0-0-g0 --with-lg-quantum=3 --with-jemalloc-prefix=je_ CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)" $(JEMALLOC_CONFIGURE_OPTS)
 	cd jemalloc && $(MAKE) lib/libjemalloc.a
 
 .PHONY: jemalloc
diff --git a/deps/jemalloc/VERSION b/deps/jemalloc/VERSION
index 05500db52..3028a808e 100644
--- a/deps/jemalloc/VERSION
+++ b/deps/jemalloc/VERSION
@@ -1 +1 @@
-5.2.1-0-g0
+5.3.0-0-g0
diff --git a/deps/jemalloc/configure b/deps/jemalloc/configure
index dace1f69e..6d6264750 100755
--- a/deps/jemalloc/configure
+++ b/deps/jemalloc/configure
@@ -1,9 +1,10 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69.
+# Generated by GNU Autoconf 2.71.
 #
 #
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -14,14 +15,16 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
+else $as_nop
   case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
@@ -31,46 +34,46 @@ esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
 
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -79,13 +82,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -94,8 +90,12 @@ case $0 in #((
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
@@ -107,30 +107,10 @@ if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 # Use a proper internal environment variable to ensure we don't fall
   # into an infinite loop, continuously re-executing ourselves.
@@ -152,20 +132,22 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  as_bourne_compatible="as_nop=:
+if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else
+else \$as_nop
   case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
@@ -185,42 +167,53 @@ as_fn_success || { exitcode=1; echo as_fn_success failed.; }
 as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
 as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
 as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
 
-else
+else \$as_nop
   exitcode=1; echo positional parameters were not saved.
 fi
 test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
 test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
   test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
 test \$(( 1 + 1 )) = 2 || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
+  if (eval "$as_required") 2>/dev/null
+then :
   as_have_required=yes
-else
+else $as_nop
   as_have_required=no
 fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
 
-else
+else $as_nop
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
   as_found=:
   case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
 	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
+	     as_shell=$as_dir$as_base
 	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
   CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
   break 2
 fi
 fi
@@ -228,14 +221,21 @@ fi
        esac
   as_found=false
 done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
 IFS=$as_save_IFS
+if $as_found
+then :
 
+else $as_nop
+  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi
+fi
 
-      if test "x$CONFIG_SHELL" != x; then :
+
+      if test "x$CONFIG_SHELL" != x
+then :
   export CONFIG_SHELL
              # We cannot yet assume a decent shell, so we have to provide a
 # neutralization value for shells without unset; and this also
@@ -253,18 +253,19 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
 
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+    if test x$as_have_required = xno
+then :
+  printf "%s\n" "$0: This script requires a shell more modern than all"
+  printf "%s\n" "$0: the shells that I found on your system."
+  if test ${ZSH_VERSION+y} ; then
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
   else
-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
@@ -291,6 +292,7 @@ as_fn_unset ()
 }
 as_unset=as_fn_unset
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -308,6 +310,14 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -322,7 +332,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -331,7 +341,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -370,12 +380,13 @@ as_fn_executable_p ()
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
+else $as_nop
   as_fn_append ()
   {
     eval $1=\$$1\$2
@@ -387,18 +398,27 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
+else $as_nop
   as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
   }
 fi # as_fn_arith
 
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -410,9 +430,9 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -439,7 +459,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -483,7 +503,7 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -497,6 +517,10 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   exit
 }
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -510,6 +534,13 @@ case `echo -n x` in #(((((
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -575,50 +606,46 @@ MFLAGS=
 MAKEFLAGS=
 
 # Identity of this package.
-PACKAGE_NAME=
-PACKAGE_TARNAME=
-PACKAGE_VERSION=
-PACKAGE_STRING=
-PACKAGE_BUGREPORT=
-PACKAGE_URL=
+PACKAGE_NAME=''
+PACKAGE_TARNAME=''
+PACKAGE_VERSION=''
+PACKAGE_STRING=''
+PACKAGE_BUGREPORT=''
+PACKAGE_URL=''
 
 ac_unique_file="Makefile.in"
 # Factoring default headers for most tests.
 ac_includes_default="\
-#include <stdio.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h>
+#include <stddef.h>
+#ifdef HAVE_STDIO_H
+# include <stdio.h>
 #endif
-#ifdef STDC_HEADERS
+#ifdef HAVE_STDLIB_H
 # include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
 #endif
 #ifdef HAVE_STRING_H
-# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
-#  include <memory.h>
-# endif
 # include <string.h>
 #endif
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
 #ifdef HAVE_INTTYPES_H
 # include <inttypes.h>
 #endif
 #ifdef HAVE_STDINT_H
 # include <stdint.h>
 #endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif"
 
+ac_header_c_list=
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 cfgoutputs_out
@@ -630,6 +657,8 @@ enable_zone_allocator
 enable_tls
 enable_lazy_lock
 libdl
+enable_uaf_detection
+enable_opt_size_checks
 enable_opt_safety_checks
 enable_readlinkat
 enable_log
@@ -697,13 +726,12 @@ build_os
 build_vendor
 build_cpu
 build
-EGREP
-GREP
 EXTRA_CXXFLAGS
 SPECIFIED_CXXFLAGS
 CONFIGURE_CXXFLAGS
 enable_cxx
 HAVE_CXX14
+HAVE_CXX17
 ac_ct_CXX
 CXXFLAGS
 CXX
@@ -804,7 +832,10 @@ enable_cache_oblivious
 enable_log
 enable_readlinkat
 enable_opt_safety_checks
+enable_opt_size_checks
+enable_uaf_detection
 with_lg_quantum
+with_lg_slab_maxregs
 with_lg_page
 with_lg_hugepage
 enable_libdl
@@ -893,8 +924,6 @@ do
   *)    ac_optarg=yes ;;
   esac
 
-  # Accept the important Cygnus configure options, so we can diagnose typos.
-
   case $ac_dashdash$ac_option in
   --)
     ac_dashdash=yes ;;
@@ -935,9 +964,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -961,9 +990,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1174,9 +1203,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1190,9 +1219,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1236,9 +1265,9 @@ Try \`$0 --help' for more information"
 
   *)
     # FIXME: should be removed in autoconf 3.0.
-    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
@@ -1254,7 +1283,7 @@ if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1318,7 +1347,7 @@ $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_myself" |
+printf "%s\n" X"$as_myself" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1449,7 +1478,7 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --disable-cxx           Disable C++ integration
   --enable-autogen        Automatically regenerate configure output
-  --enable-documentation  Build documentation
+  --enable-doc            Build documentation
   --enable-shared         Build shared libaries
   --enable-static         Build static libaries
   --enable-debug          Build debugging code
@@ -1471,6 +1500,11 @@ Optional Features:
   --enable-opt-safety-checks
                           Perform certain low-overhead checks, even in opt
                           mode
+  --enable-opt-size-checks
+                          Perform sized-deallocation argument checks, even in
+                          opt mode
+  --enable-uaf-detection  Allow sampled junk-filling on deallocation to detect
+                          use-after-free
   --disable-libdl         Do not use libdl
   --disable-syscall       Disable use of syscall(2)
   --enable-lazy-lock      Enable lazy locking (only lock when multi-threaded)
@@ -1503,6 +1537,9 @@ Optional Packages:
                           dynamically linking
   --with-lg-quantum=<lg-quantum>
                           Base 2 log of minimum allocation alignment
+  --with-lg-slab-maxregs=<lg-slab-maxregs>
+                          Base 2 log of maximum number of regions in a slab
+                          (used with malloc_conf slab_sizes)
   --with-lg-page=<lg-page>
                           Base 2 log of system page size
   --with-lg-hugepage=<lg-hugepage>
@@ -1539,9 +1576,9 @@ if test "$ac_init_help" = "recursive"; then
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1569,7 +1606,8 @@ esac
 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 
     cd "$ac_dir" || { ac_status=$?; continue; }
-    # Check for guested configure.
+    # Check for configure.gnu first; this name is used for a wrapper for
+    # Metaconfig's "Configure" on case-insensitive file systems.
     if test -f "$ac_srcdir/configure.gnu"; then
       echo &&
       $SHELL "$ac_srcdir/configure.gnu" --help=recursive
@@ -1577,7 +1615,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
       echo &&
       $SHELL "$ac_srcdir/configure" --help=recursive
     else
-      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
@@ -1587,9 +1625,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.69
+generated by GNU Autoconf 2.71
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1606,14 +1644,14 @@ fi
 ac_fn_c_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
+  rm -f conftest.$ac_objext conftest.beam
   if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1621,14 +1659,15 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest.$ac_objext
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
@@ -1650,7 +1689,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1658,14 +1697,15 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } > conftest.i && {
 	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
     ac_retval=1
@@ -1681,14 +1721,14 @@ fi
 ac_fn_cxx_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
+  rm -f conftest.$ac_objext conftest.beam
   if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1696,14 +1736,15 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest.$ac_objext
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
@@ -1719,14 +1760,14 @@ fi
 ac_fn_c_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
   if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1734,17 +1775,18 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
 	 test -x conftest$ac_exeext
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
@@ -1761,8 +1803,8 @@ fi
 
 # ac_fn_c_try_run LINENO
 # ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
+# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
+# executables *can* be run.
 ac_fn_c_try_run ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
@@ -1772,25 +1814,26 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
   { { case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+       printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
        ac_retval=$ac_status
@@ -1808,26 +1851,28 @@ fi
 ac_fn_c_check_header_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   eval "$3=yes"
-else
+else $as_nop
   eval "$3=no"
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
@@ -1846,7 +1891,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 static int test_array [1 - 2 * !(($2) >= 0)];
 test_array [0] = 0;
@@ -1856,14 +1901,15 @@ return test_array [0];
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_lo=0 ac_mid=0
   while :; do
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
 test_array [0] = 0;
@@ -1873,9 +1919,10 @@ return test_array [0];
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_hi=$ac_mid; break
-else
+else $as_nop
   as_fn_arith $ac_mid + 1 && ac_lo=$as_val
 			if test $ac_lo -le $ac_mid; then
 			  ac_lo= ac_hi=
@@ -1883,14 +1930,14 @@ else
 			fi
 			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   done
-else
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 static int test_array [1 - 2 * !(($2) < 0)];
 test_array [0] = 0;
@@ -1900,14 +1947,15 @@ return test_array [0];
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_hi=-1 ac_mid=-1
   while :; do
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 static int test_array [1 - 2 * !(($2) >= $ac_mid)];
 test_array [0] = 0;
@@ -1917,9 +1965,10 @@ return test_array [0];
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_lo=$ac_mid; break
-else
+else $as_nop
   as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
 			if test $ac_mid -le $ac_hi; then
 			  ac_lo= ac_hi=
@@ -1927,14 +1976,14 @@ else
 			fi
 			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   done
-else
+else $as_nop
   ac_lo= ac_hi=
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 # Binary search between lo and hi bounds.
 while test "x$ac_lo" != "x$ac_hi"; do
   as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
@@ -1942,7 +1991,7 @@ while test "x$ac_lo" != "x$ac_hi"; do
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
 test_array [0] = 0;
@@ -1952,12 +2001,13 @@ return test_array [0];
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_hi=$ac_mid
-else
+else $as_nop
   as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 done
 case $ac_lo in #((
 ?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
@@ -1967,12 +2017,12 @@ esac
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
-static long int longval () { return $2; }
-static unsigned long int ulongval () { return $2; }
+static long int longval (void) { return $2; }
+static unsigned long int ulongval (void) { return $2; }
 #include <stdio.h>
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 
   FILE *f = fopen ("conftest.val", "w");
@@ -2000,9 +2050,10 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   echo >>conftest.val; read $3 <conftest.val; ac_retval=0
-else
+else $as_nop
   ac_retval=1
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -2015,104 +2066,18 @@ rm -f conftest.val
 
 } # ac_fn_c_compute_int
 
-# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
-# Tests whether HEADER exists, giving a warning if it cannot be compiled using
-# the include files in INCLUDES and setting the cache variable VAR
-# accordingly.
-ac_fn_c_check_header_mongrel ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if eval \${$3+:} false; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
-$as_echo_n "checking $2 usability... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-#include <$2>
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_header_compiler=yes
-else
-  ac_header_compiler=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
-$as_echo_n "checking $2 presence... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <$2>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  ac_header_preproc=yes
-else
-  ac_header_preproc=no
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
-  yes:no: )
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
-    ;;
-esac
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  eval "$3=\$ac_header_compiler"
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_header_mongrel
-
 # ac_fn_c_check_func LINENO FUNC VAR
 # ----------------------------------
 # Tests whether FUNC exists, setting the cache variable VAR accordingly
 ac_fn_c_check_func ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
@@ -2120,16 +2085,9 @@ else
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $2 (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+   which can conflict with char $2 (); below.  */
 
+#include <limits.h>
 #undef $2
 
 /* Override any GCC internal prototype to avoid an error.
@@ -2147,24 +2105,25 @@ choke me
 #endif
 
 int
-main ()
+main (void)
 {
 return $2 ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   eval "$3=yes"
-else
+else $as_nop
   eval "$3=no"
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
@@ -2176,17 +2135,18 @@ $as_echo "$ac_res" >&6; }
 ac_fn_c_check_type ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   eval "$3=no"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 if (sizeof ($2))
 	 return 0;
@@ -2194,12 +2154,13 @@ if (sizeof ($2))
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 int
-main ()
+main (void)
 {
 if (sizeof (($2)))
 	    return 0;
@@ -2207,29 +2168,50 @@ if (sizeof (($2)))
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-else
+else $as_nop
   eval "$3=yes"
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_type
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
+
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
 
-  $ $0 $@
+  $ $0$ac_configure_args_raw
 
 _ACEOF
 exec 5>>config.log
@@ -2262,8 +2244,12 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    $as_echo "PATH: $as_dir"
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
   done
 IFS=$as_save_IFS
 
@@ -2298,7 +2284,7 @@ do
     | -silent | --silent | --silen | --sile | --sil)
       continue ;;
     *\'*)
-      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -2333,11 +2319,13 @@ done
 # WARNING: Use '\'' to represent an apostrophe within the trap.
 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
 trap 'exit_status=$?
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
   # Save into config.log some information that might help in debugging.
   {
     echo
 
-    $as_echo "## ---------------- ##
+    printf "%s\n" "## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##"
     echo
@@ -2348,8 +2336,8 @@ trap 'exit_status=$?
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -2373,7 +2361,7 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 )
     echo
 
-    $as_echo "## ----------------- ##
+    printf "%s\n" "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
     echo
@@ -2381,14 +2369,14 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
     do
       eval ac_val=\$$ac_var
       case $ac_val in
-      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
       esac
-      $as_echo "$ac_var='\''$ac_val'\''"
+      printf "%s\n" "$ac_var='\''$ac_val'\''"
     done | sort
     echo
 
     if test -n "$ac_subst_files"; then
-      $as_echo "## ------------------- ##
+      printf "%s\n" "## ------------------- ##
 ## File substitutions. ##
 ## ------------------- ##"
       echo
@@ -2396,15 +2384,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       do
 	eval ac_val=\$$ac_var
 	case $ac_val in
-	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 	esac
-	$as_echo "$ac_var='\''$ac_val'\''"
+	printf "%s\n" "$ac_var='\''$ac_val'\''"
       done | sort
       echo
     fi
 
     if test -s confdefs.h; then
-      $as_echo "## ----------- ##
+      printf "%s\n" "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
       echo
@@ -2412,8 +2400,8 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       echo
     fi
     test "$ac_signal" != 0 &&
-      $as_echo "$as_me: caught signal $ac_signal"
-    $as_echo "$as_me: exit $exit_status"
+      printf "%s\n" "$as_me: caught signal $ac_signal"
+    printf "%s\n" "$as_me: exit $exit_status"
   } >&5
   rm -f core *.core core.conftest.* &&
     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
@@ -2427,63 +2415,48 @@ ac_signal=0
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
-$as_echo "/* confdefs.h */" > confdefs.h
+printf "%s\n" "/* confdefs.h */" > confdefs.h
 
 # Predefined preprocessor variables.
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_NAME "$PACKAGE_NAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_VERSION "$PACKAGE_VERSION"
-_ACEOF
+printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_STRING "$PACKAGE_STRING"
-_ACEOF
+printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
-_ACEOF
+printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_URL "$PACKAGE_URL"
-_ACEOF
+printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
 
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
-ac_site_file1=NONE
-ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  # We do not want a PATH search for config.site.
-  case $CONFIG_SITE in #((
-    -*)  ac_site_file1=./$CONFIG_SITE;;
-    */*) ac_site_file1=$CONFIG_SITE;;
-    *)   ac_site_file1=./$CONFIG_SITE;;
-  esac
+  ac_site_files="$CONFIG_SITE"
 elif test "x$prefix" != xNONE; then
-  ac_site_file1=$prefix/share/config.site
-  ac_site_file2=$prefix/etc/config.site
+  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
 else
-  ac_site_file1=$ac_default_prefix/share/config.site
-  ac_site_file2=$ac_default_prefix/etc/config.site
+  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
 fi
-for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+
+for ac_site_file in $ac_site_files
 do
-  test "x$ac_site_file" = xNONE && continue
-  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+  case $ac_site_file in #(
+  */*) :
+     ;; #(
+  *) :
+    ac_site_file=./$ac_site_file ;;
+esac
+  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
 See \`config.log' for more details" "$LINENO" 5; }
   fi
@@ -2493,19 +2466,650 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special files
   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-$as_echo "$as_me: loading cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
       *)                      . "./$cache_file";;
     esac
   fi
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-$as_echo "$as_me: creating cache $cache_file" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+# Test code for whether the C compiler supports C89 (global declarations)
+ac_c_conftest_c89_globals='
+/* Does the compiler advertise C89 conformance?
+   Do not test the value of __STDC__, because some compilers set it to 0
+   while being otherwise adequately conformant. */
+#if !defined __STDC__
+# error "Compiler does not advertise C89 conformance"
+#endif
+
+#include <stddef.h>
+#include <stdarg.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
+struct buf { int x; };
+struct buf * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not \xHH hex character constants.
+   These do not provoke an error unfortunately, instead are silently treated
+   as an "x".  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
+   array size at least.  It is necessary to write \x00 == 0 to get something
+   that is true only with -std.  */
+int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) '\''x'\''
+int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
+               int, int);'
+
+# Test code for whether the C compiler supports C89 (body of main).
+ac_c_conftest_c89_main='
+ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
+'
+
+# Test code for whether the C compiler supports C99 (global declarations)
+ac_c_conftest_c99_globals='
+// Does the compiler advertise C99 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+# error "Compiler does not advertise C99 conformance"
+#endif
+
+#include <stdbool.h>
+extern int puts (const char *);
+extern int printf (const char *, ...);
+extern int dprintf (int, const char *, ...);
+extern void *malloc (size_t);
+
+// Check varargs macros.  These examples are taken from C99 6.10.3.5.
+// dprintf is used instead of fprintf to avoid needing to declare
+// FILE and stderr.
+#define debug(...) dprintf (2, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+  int x = 1234;
+  int y = 5678;
+  debug ("Flag");
+  debug ("X = %d\n", x);
+  showlist (The first, second, and third items.);
+  report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+  #error "your preprocessor is broken"
+#endif
+#if BIG_OK
+#else
+  #error "your preprocessor is broken"
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+  int datasize;
+  double data[];
+};
+
+struct named_init {
+  int number;
+  const wchar_t *name;
+  double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+  // See if C++-style comments work.
+  // Iterate through items via the restricted pointer.
+  // Also check for declarations in for loops.
+  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
+    continue;
+  return 0;
+}
+
+// Check varargs and va_copy.
+static bool
+test_varargs (const char *format, ...)
+{
+  va_list args;
+  va_start (args, format);
+  va_list args_copy;
+  va_copy (args_copy, args);
+
+  const char *str = "";
+  int number = 0;
+  float fnumber = 0;
+
+  while (*format)
+    {
+      switch (*format++)
+	{
+	case '\''s'\'': // string
+	  str = va_arg (args_copy, const char *);
+	  break;
+	case '\''d'\'': // int
+	  number = va_arg (args_copy, int);
+	  break;
+	case '\''f'\'': // float
+	  fnumber = va_arg (args_copy, double);
+	  break;
+	default:
+	  break;
+	}
+    }
+  va_end (args_copy);
+  va_end (args);
+
+  return *str && number && fnumber;
+}
+'
+
+# Test code for whether the C compiler supports C99 (body of main).
+ac_c_conftest_c99_main='
+  // Check bool.
+  _Bool success = false;
+  success |= (argc != 0);
+
+  // Check restrict.
+  if (test_restrict ("String literal") == 0)
+    success = true;
+  char *restrict newvar = "Another string";
+
+  // Check varargs.
+  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
+  test_varargs_macros ();
+
+  // Check flexible array members.
+  struct incomplete_array *ia =
+    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  ia->datasize = 10;
+  for (int i = 0; i < ia->datasize; ++i)
+    ia->data[i] = i * 1.234;
+
+  // Check named initializers.
+  struct named_init ni = {
+    .number = 34,
+    .name = L"Test wide string",
+    .average = 543.34343,
+  };
+
+  ni.number = 58;
+
+  int dynamic_array[ni.number];
+  dynamic_array[0] = argv[0][0];
+  dynamic_array[ni.number - 1] = 543;
+
+  // work around unused variable warnings
+  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
+	 || dynamic_array[ni.number - 1] != 543);
+'
+
+# Test code for whether the C compiler supports C11 (global declarations)
+ac_c_conftest_c11_globals='
+// Does the compiler advertise C11 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
+# error "Compiler does not advertise C11 conformance"
+#endif
+
+// Check _Alignas.
+char _Alignas (double) aligned_as_double;
+char _Alignas (0) no_special_alignment;
+extern char aligned_as_int;
+char _Alignas (0) _Alignas (int) aligned_as_int;
+
+// Check _Alignof.
+enum
+{
+  int_alignment = _Alignof (int),
+  int_array_alignment = _Alignof (int[100]),
+  char_alignment = _Alignof (char)
+};
+_Static_assert (0 < -_Alignof (int), "_Alignof is signed");
+
+// Check _Noreturn.
+int _Noreturn does_not_return (void) { for (;;) continue; }
+
+// Check _Static_assert.
+struct test_static_assert
+{
+  int x;
+  _Static_assert (sizeof (int) <= sizeof (long int),
+                  "_Static_assert does not work in struct");
+  long int y;
+};
+
+// Check UTF-8 literals.
+#define u8 syntax error!
+char const utf8_literal[] = u8"happens to be ASCII" "another string";
+
+// Check duplicate typedefs.
+typedef long *long_ptr;
+typedef long int *long_ptr;
+typedef long_ptr long_ptr;
+
+// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
+struct anonymous
+{
+  union {
+    struct { int i; int j; };
+    struct { int k; long int l; } w;
+  };
+  int m;
+} v1;
+'
+
+# Test code for whether the C compiler supports C11 (body of main).
+ac_c_conftest_c11_main='
+  _Static_assert ((offsetof (struct anonymous, i)
+		   == offsetof (struct anonymous, w.k)),
+		  "Anonymous union alignment botch");
+  v1.i = 2;
+  v1.w.k = 5;
+  ok |= v1.i != 5;
+'
+
+# Test code for whether the C compiler supports C11 (complete).
+ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+${ac_c_conftest_c11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  ${ac_c_conftest_c11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C99 (complete).
+ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C89 (complete).
+ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  return ok;
+}
+"
+
+# Test code for whether the C++ compiler supports C++98 (global declarations)
+ac_cxx_conftest_cxx98_globals='
+// Does the compiler advertise C++98 conformance?
+#if !defined __cplusplus || __cplusplus < 199711L
+# error "Compiler does not advertise C++98 conformance"
+#endif
+
+// These inclusions are to reject old compilers that
+// lack the unsuffixed header files.
+#include <cstdlib>
+#include <exception>
+
+// <cassert> and <cstring> are *not* freestanding headers in C++98.
+extern void assert (int);
+namespace std {
+  extern int strcmp (const char *, const char *);
+}
+
+// Namespaces, exceptions, and templates were all added after "C++ 2.0".
+using std::exception;
+using std::strcmp;
+
+namespace {
+
+void test_exception_syntax()
+{
+  try {
+    throw "test";
+  } catch (const char *s) {
+    // Extra parentheses suppress a warning when building autoconf itself,
+    // due to lint rules shared with more typical C programs.
+    assert (!(strcmp) (s, "test"));
+  }
+}
+
+template <typename T> struct test_template
+{
+  T const val;
+  explicit test_template(T t) : val(t) {}
+  template <typename U> T add(U u) { return static_cast<T>(u) + val; }
+};
+
+} // anonymous namespace
+'
+
+# Test code for whether the C++ compiler supports C++98 (body of main)
+ac_cxx_conftest_cxx98_main='
+  assert (argc);
+  assert (! argv[0]);
+{
+  test_exception_syntax ();
+  test_template<double> tt (2.0);
+  assert (tt.add (4) == 6.0);
+  assert (true && !false);
+}
+'
+
+# Test code for whether the C++ compiler supports C++11 (global declarations)
+ac_cxx_conftest_cxx11_globals='
+// Does the compiler advertise C++ 2011 conformance?
+#if !defined __cplusplus || __cplusplus < 201103L
+# error "Compiler does not advertise C++11 conformance"
+#endif
+
+namespace cxx11test
+{
+  constexpr int get_val() { return 20; }
+
+  struct testinit
+  {
+    int i;
+    double d;
+  };
+
+  class delegate
+  {
+  public:
+    delegate(int n) : n(n) {}
+    delegate(): delegate(2354) {}
+
+    virtual int getval() { return this->n; };
+  protected:
+    int n;
+  };
+
+  class overridden : public delegate
+  {
+  public:
+    overridden(int n): delegate(n) {}
+    virtual int getval() override final { return this->n * 2; }
+  };
+
+  class nocopy
+  {
+  public:
+    nocopy(int i): i(i) {}
+    nocopy() = default;
+    nocopy(const nocopy&) = delete;
+    nocopy & operator=(const nocopy&) = delete;
+  private:
+    int i;
+  };
+
+  // for testing lambda expressions
+  template <typename Ret, typename Fn> Ret eval(Fn f, Ret v)
+  {
+    return f(v);
+  }
+
+  // for testing variadic templates and trailing return types
+  template <typename V> auto sum(V first) -> V
+  {
+    return first;
+  }
+  template <typename V, typename... Args> auto sum(V first, Args... rest) -> V
+  {
+    return first + sum(rest...);
+  }
+}
+'
+
+# Test code for whether the C++ compiler supports C++11 (body of main)
+ac_cxx_conftest_cxx11_main='
+{
+  // Test auto and decltype
+  auto a1 = 6538;
+  auto a2 = 48573953.4;
+  auto a3 = "String literal";
+
+  int total = 0;
+  for (auto i = a3; *i; ++i) { total += *i; }
+
+  decltype(a2) a4 = 34895.034;
+}
+{
+  // Test constexpr
+  short sa[cxx11test::get_val()] = { 0 };
+}
+{
+  // Test initializer lists
+  cxx11test::testinit il = { 4323, 435234.23544 };
+}
+{
+  // Test range-based for
+  int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3,
+                 14, 19, 17, 8, 6, 20, 16, 2, 11, 1};
+  for (auto &x : array) { x += 23; }
+}
+{
+  // Test lambda expressions
+  using cxx11test::eval;
+  assert (eval ([](int x) { return x*2; }, 21) == 42);
+  double d = 2.0;
+  assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0);
+  assert (d == 5.0);
+  assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0);
+  assert (d == 5.0);
+}
+{
+  // Test use of variadic templates
+  using cxx11test::sum;
+  auto a = sum(1);
+  auto b = sum(1, 2);
+  auto c = sum(1.0, 2.0, 3.0);
+}
+{
+  // Test constructor delegation
+  cxx11test::delegate d1;
+  cxx11test::delegate d2();
+  cxx11test::delegate d3(45);
+}
+{
+  // Test override and final
+  cxx11test::overridden o1(55464);
+}
+{
+  // Test nullptr
+  char *c = nullptr;
+}
+{
+  // Test template brackets
+  test_template<::test_template<int>> v(test_template<int>(12));
+}
+{
+  // Unicode literals
+  char const *utf8 = u8"UTF-8 string \u2500";
+  char16_t const *utf16 = u"UTF-8 string \u2500";
+  char32_t const *utf32 = U"UTF-32 string \u2500";
+}
+'
+
+# Test code for whether the C compiler supports C++11 (complete).
+ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals}
+${ac_cxx_conftest_cxx11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_cxx_conftest_cxx98_main}
+  ${ac_cxx_conftest_cxx11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C++98 (complete).
+ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals}
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_cxx_conftest_cxx98_main}
+  return ok;
+}
+"
+
+as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H"
+as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H"
+as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H"
+as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H"
+as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H"
+as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
+as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
+as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
+as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
+
+# Auxiliary files required by this configure script.
+ac_aux_files="install-sh config.guess config.sub"
+
+# Locations in which to look for auxiliary files.
+ac_aux_dir_candidates="${srcdir}/build-aux"
+
+# Search for a directory containing all of the required auxiliary files,
+# $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
+# If we don't find one directory that contains all the files we need,
+# we report the set of missing files from the *first* directory in
+# $ac_aux_dir_candidates and give up.
+ac_missing_aux_files=""
+ac_first_candidate=:
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in $ac_aux_dir_candidates
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+  as_found=:
+
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
+  ac_aux_dir_found=yes
+  ac_install_sh=
+  for ac_aux in $ac_aux_files
+  do
+    # As a special case, if "install-sh" is required, that requirement
+    # can be satisfied by any of "install-sh", "install.sh", or "shtool",
+    # and $ac_install_sh is set appropriately for whichever one is found.
+    if test x"$ac_aux" = x"install-sh"
+    then
+      if test -f "${as_dir}install-sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
+        ac_install_sh="${as_dir}install-sh -c"
+      elif test -f "${as_dir}install.sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
+        ac_install_sh="${as_dir}install.sh -c"
+      elif test -f "${as_dir}shtool"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
+        ac_install_sh="${as_dir}shtool install -c"
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} install-sh"
+        else
+          break
+        fi
+      fi
+    else
+      if test -f "${as_dir}${ac_aux}"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
+        else
+          break
+        fi
+      fi
+    fi
+  done
+  if test "$ac_aux_dir_found" = yes; then
+    ac_aux_dir="$as_dir"
+    break
+  fi
+  ac_first_candidate=false
+
+  as_found=false
+done
+IFS=$as_save_IFS
+if $as_found
+then :
+
+else $as_nop
+  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+fi
+
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+if test -f "${ac_aux_dir}config.guess"; then
+  ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
+fi
+if test -f "${ac_aux_dir}config.sub"; then
+  ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
+fi
+if test -f "$ac_aux_dir/configure"; then
+  ac_configure="$SHELL ${ac_aux_dir}configure"
+fi
+
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -2516,12 +3120,12 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -2530,24 +3134,24 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
     *) ac_arg=$ac_var=$ac_new_val ;;
     esac
     case " $ac_configure_args " in
@@ -2557,11 +3161,12 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -2575,34 +3180,6 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
-ac_aux_dir=
-for ac_dir in build-aux "$srcdir"/build-aux; do
-  if test -f "$ac_dir/install-sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install-sh -c"
-    break
-  elif test -f "$ac_dir/install.sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install.sh -c"
-    break
-  elif test -f "$ac_dir/shtool"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/shtool install -c"
-    break
-  fi
-done
-if test -z "$ac_aux_dir"; then
-  as_fn_error $? "cannot find install-sh, install.sh, or shtool in build-aux \"$srcdir\"/build-aux" "$LINENO" 5
-fi
-
-# These three variables are undocumented and unsupported,
-# and are intended to be withdrawn in a future Autoconf release.
-# They can cause serious problems if a builder's source tree is in a directory
-# whose full name contains unusual characters.
-ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
-ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
-ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
-
 
 
 
@@ -2645,12 +3222,14 @@ objroot=""
 abs_objroot="`pwd`/"
 
 
-if test "x$prefix" = "xNONE" ; then
-  prefix="/usr/local"
-fi
-if test "x$exec_prefix" = "xNONE" ; then
-  exec_prefix=$prefix
-fi
+case "$prefix" in
+   *\ * ) as_fn_error $? "Prefix should not contain spaces" "$LINENO" 5 ;;
+   "NONE" ) prefix="/usr/local" ;;
+esac
+case "$exec_prefix" in
+   *\ * ) as_fn_error $? "Exec prefix should not contain spaces" "$LINENO" 5 ;;
+   "NONE" ) exec_prefix=$prefix ;;
+esac
 PREFIX=$prefix
 
 BINDIR=`eval echo $bindir`
@@ -2671,11 +3250,12 @@ MANDIR=`eval echo $MANDIR`
 
 # Extract the first word of "xsltproc", so it can be a program name with args.
 set dummy xsltproc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_XSLTPROC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_XSLTPROC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   case $XSLTPROC in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_XSLTPROC="$XSLTPROC" # Let the user override the test with a path.
@@ -2685,11 +3265,15 @@ else
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_XSLTPROC="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_XSLTPROC="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2702,11 +3286,11 @@ esac
 fi
 XSLTPROC=$ac_cv_path_XSLTPROC
 if test -n "$XSLTPROC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XSLTPROC" >&5
-$as_echo "$XSLTPROC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $XSLTPROC" >&5
+printf "%s\n" "$XSLTPROC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2719,7 +3303,8 @@ else
 fi
 
 # Check whether --with-xslroot was given.
-if test "${with_xslroot+set}" = set; then :
+if test ${with_xslroot+y}
+then :
   withval=$with_xslroot;
 if test "x$with_xslroot" = "xno" ; then
   XSLROOT="${DEFAULT_XSLROOT}"
@@ -2727,7 +3312,7 @@ else
   XSLROOT="${with_xslroot}"
 fi
 
-else
+else $as_nop
   XSLROOT="${DEFAULT_XSLROOT}"
 
 fi
@@ -2738,6 +3323,15 @@ fi
 
 
 CFLAGS=$CFLAGS
+
+
+
+
+
+
+
+
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2746,11 +3340,12 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2758,11 +3353,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2773,11 +3372,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2786,11 +3385,12 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
@@ -2798,11 +3398,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2813,11 +3417,11 @@ fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -2825,8 +3429,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2839,11 +3443,12 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2851,11 +3456,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2866,11 +3475,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2879,11 +3488,12 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2892,15 +3502,19 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2916,18 +3530,18 @@ if test $ac_prog_rejected = yes; then
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+    ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2938,11 +3552,12 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2950,11 +3565,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2965,11 +3584,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2982,11 +3601,12 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
@@ -2994,11 +3614,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -3009,11 +3633,11 @@ fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -3025,8 +3649,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -3034,25 +3658,129 @@ esac
 fi
 
 fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
+set dummy ${ac_tool_prefix}clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "clang", so it can be a program name with args.
+set dummy clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
 See \`config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-for ac_option in --version -v -V -qversion; do
+for ac_option in --version -v -V -qversion -version; do
   { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -3062,7 +3790,7 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
@@ -3070,7 +3798,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3082,9 +3810,9 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+printf %s "checking whether the C compiler works... " >&6; }
+ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
@@ -3105,11 +3833,12 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
@@ -3126,7 +3855,7 @@ do
 	# certainly right.
 	break;;
     *.* )
-	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
@@ -3142,44 +3871,46 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else
+else $as_nop
   ac_file=''
 fi
-if test -z "$ac_file"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-$as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
 See \`config.log' for more details" "$LINENO" 5; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+printf %s "checking for C compiler default output file name... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf "%s\n" "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
-$as_echo_n "checking for suffix of executables... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+printf %s "checking for suffix of executables... " >&6; }
 if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
@@ -3193,15 +3924,15 @@ for ac_file in conftest.exe conftest conftest.*; do
     * ) break;;
   esac
 done
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
 See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest conftest$ac_cv_exeext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
-$as_echo "$ac_cv_exeext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf "%s\n" "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
@@ -3210,7 +3941,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdio.h>
 int
-main ()
+main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
  return ferror (f) || fclose (f) != 0;
@@ -3222,8 +3953,8 @@ _ACEOF
 ac_clean_files="$ac_clean_files conftest.out"
 # Check that the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+printf %s "checking whether we are cross compiling... " >&6; }
 if test "$cross_compiling" != yes; then
   { { ac_try="$ac_link"
 case "(($ac_try" in
@@ -3231,10 +3962,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
   if { ac_try='./conftest$ac_cv_exeext'
   { { case "(($ac_try" in
@@ -3242,39 +3973,40 @@ $as_echo "$ac_try_echo"; } >&5
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run C compiled programs.
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot run C compiled programs.
 If you meant to cross compile, use \`--host'.
 See \`config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf "%s\n" "$cross_compiling" >&6; }
 
 rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
-$as_echo_n "checking for suffix of object files... " >&6; }
-if ${ac_cv_objext+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+printf %s "checking for suffix of object files... " >&6; }
+if test ${ac_cv_objext+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -3288,11 +4020,12 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -3301,31 +4034,32 @@ $as_echo "$ac_try_echo"; } >&5
        break;;
   esac
 done
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
 See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-$as_echo "$ac_cv_objext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf "%s\n" "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
-$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+printf %s "checking whether the compiler supports GNU C... " >&6; }
+if test ${ac_cv_c_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -3335,29 +4069,33 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_compiler_gnu=yes
-else
+else $as_nop
   ac_compiler_gnu=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 if test $ac_compiler_gnu = yes; then
   GCC=yes
 else
   GCC=
 fi
-ac_test_CFLAGS=${CFLAGS+set}
+ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
-$as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+printf %s "checking whether $CC accepts -g... " >&6; }
+if test ${ac_cv_prog_cc_g+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
@@ -3366,57 +4104,60 @@ else
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
-else
+else $as_nop
   CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-else
+else $as_nop
   ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-$as_echo "$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
   if test "$GCC" = yes; then
@@ -3431,94 +4172,144 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
-$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_prog_cc_c89=no
+ac_prog_cc_stdc=no
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+printf %s "checking for $CC option to enable C11 features... " >&6; }
+if test ${ac_cv_prog_cc_c11+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <stdarg.h>
-#include <stdio.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not '\xHH' hex character constants.
-   These don't provoke an error unfortunately, instead are silently treated
-   as 'x'.  The following induces an error, until -std is added to get
-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
-   array size at least.  It's necessary to write '\x00'==0 to get something
-   that's true only with -std.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+$ac_c_conftest_c11_program
+_ACEOF
+for ac_arg in '' -std=gnu11
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
 
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
-   inside strings and character constants.  */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+if test "x$ac_cv_prog_cc_c11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
+  ac_prog_cc_stdc=c11
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+printf %s "checking for $CC option to enable C99 features... " >&6; }
+if test ${ac_cv_prog_cc_c99+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c99_program
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
 
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
-  ;
-  return 0;
-}
+if test "x$ac_cv_prog_cc_c99" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c99" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+  ac_prog_cc_stdc=c99
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+printf %s "checking for $CC option to enable C89 features... " >&6; }
+if test ${ac_cv_prog_cc_c89+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c89_program
 _ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
-	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  if ac_fn_c_try_compile "$LINENO"; then :
+  if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_c89=$ac_arg
 fi
-rm -f core conftest.err conftest.$ac_objext
+rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
 CC=$ac_save_CC
-
 fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
-  x)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
-  *)
-    CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
-esac
-if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+if test "x$ac_cv_prog_cc_c89" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c89" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+  ac_prog_cc_stdc=c89
+fi
 fi
 
 ac_ext=c
@@ -3530,16 +4321,17 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 if test "x$GCC" != "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler is MSVC" >&5
-$as_echo_n "checking whether compiler is MSVC... " >&6; }
-if ${je_cv_msvc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler is MSVC" >&5
+printf %s "checking whether compiler is MSVC... " >&6; }
+if test ${je_cv_msvc+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
 #ifndef _MSC_VER
@@ -3550,15 +4342,16 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_msvc=yes
-else
+else $as_nop
   je_cv_msvc=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_msvc" >&5
-$as_echo "$je_cv_msvc" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_msvc" >&5
+printf "%s\n" "$je_cv_msvc" >&6; }
 fi
 
 je_cv_cray_prgenv_wrapper=""
@@ -3572,16 +4365,17 @@ if test "x${PE_ENV}" != "x" ; then
   esac
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler is cray" >&5
-$as_echo_n "checking whether compiler is cray... " >&6; }
-if ${je_cv_cray+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler is cray" >&5
+printf %s "checking whether compiler is cray... " >&6; }
+if test ${je_cv_cray+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
 #ifndef _CRAYC
@@ -3592,27 +4386,29 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cray=yes
-else
+else $as_nop
   je_cv_cray=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_cray" >&5
-$as_echo "$je_cv_cray" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_cray" >&5
+printf "%s\n" "$je_cv_cray" >&6; }
 
 if test "x${je_cv_cray}" = "xyes" ; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cray compiler version is 8.4" >&5
-$as_echo_n "checking whether cray compiler version is 8.4... " >&6; }
-if ${je_cv_cray_84+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether cray compiler version is 8.4" >&5
+printf %s "checking whether cray compiler version is 8.4... " >&6; }
+if test ${je_cv_cray_84+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
 #if !(_RELEASE_MAJOR == 8 && _RELEASE_MINOR == 4)
@@ -3623,21 +4419,22 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cray_84=yes
-else
+else $as_nop
   je_cv_cray_84=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_cray_84" >&5
-$as_echo "$je_cv_cray_84" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_cray_84" >&5
+printf "%s\n" "$je_cv_cray_84" >&6; }
 fi
 
 if test "x$GCC" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -std=gnu11" >&5
-$as_echo_n "checking whether compiler supports -std=gnu11... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -std=gnu11" >&5
+printf %s "checking whether compiler supports -std=gnu11... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-std=gnu11
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3658,7 +4455,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3667,18 +4464,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-std=gnu11
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3687,14 +4485,13 @@ fi
 
 
   if test "x$je_cv_cflags_added" = "x-std=gnu11" ; then
-    cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_HAS_RESTRICT 1
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_HAS_RESTRICT  " >>confdefs.h
 
   else
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -std=gnu99" >&5
-$as_echo_n "checking whether compiler supports -std=gnu99... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -std=gnu99" >&5
+printf %s "checking whether compiler supports -std=gnu99... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-std=gnu99
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3715,7 +4512,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3724,18 +4521,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-std=gnu99
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3744,15 +4542,66 @@ fi
 
 
     if test "x$je_cv_cflags_added" = "x-std=gnu99" ; then
-      cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_HAS_RESTRICT 1
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_HAS_RESTRICT  " >>confdefs.h
 
     fi
   fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wall" >&5
-$as_echo_n "checking whether compiler supports -Wall... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror=unknown-warning-option" >&5
+printf %s "checking whether compiler supports -Werror=unknown-warning-option... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Werror=unknown-warning-option
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Werror=unknown-warning-option
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wall" >&5
+printf %s "checking whether compiler supports -Wall... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wall
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3773,7 +4622,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3782,18 +4631,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wall
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3802,8 +4652,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wextra" >&5
-$as_echo_n "checking whether compiler supports -Wextra... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wextra" >&5
+printf %s "checking whether compiler supports -Wextra... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wextra
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3824,7 +4674,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3833,18 +4683,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wextra
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3853,8 +4704,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wshorten-64-to-32" >&5
-$as_echo_n "checking whether compiler supports -Wshorten-64-to-32... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wshorten-64-to-32" >&5
+printf %s "checking whether compiler supports -Wshorten-64-to-32... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wshorten-64-to-32
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3875,7 +4726,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3884,18 +4735,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wshorten-64-to-32
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3904,8 +4756,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wsign-compare" >&5
-$as_echo_n "checking whether compiler supports -Wsign-compare... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wsign-compare" >&5
+printf %s "checking whether compiler supports -Wsign-compare... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wsign-compare
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3926,7 +4778,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3935,18 +4787,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wsign-compare
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -3955,8 +4808,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wundef" >&5
-$as_echo_n "checking whether compiler supports -Wundef... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wundef" >&5
+printf %s "checking whether compiler supports -Wundef... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wundef
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -3977,7 +4830,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -3986,18 +4839,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wundef
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4006,8 +4860,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wno-format-zero-length" >&5
-$as_echo_n "checking whether compiler supports -Wno-format-zero-length... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wno-format-zero-length" >&5
+printf %s "checking whether compiler supports -Wno-format-zero-length... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Wno-format-zero-length
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4028,7 +4882,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4037,18 +4891,123 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Wno-format-zero-length
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wpointer-arith" >&5
+printf %s "checking whether compiler supports -Wpointer-arith... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wpointer-arith
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wpointer-arith
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wno-missing-braces" >&5
+printf %s "checking whether compiler supports -Wno-missing-braces... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wno-missing-braces
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wno-missing-braces
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4057,8 +5016,112 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -pipe" >&5
-$as_echo_n "checking whether compiler supports -pipe... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wno-missing-field-initializers" >&5
+printf %s "checking whether compiler supports -Wno-missing-field-initializers... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wno-missing-field-initializers
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wno-missing-field-initializers
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wno-missing-attributes" >&5
+printf %s "checking whether compiler supports -Wno-missing-attributes... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wno-missing-attributes
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wno-missing-attributes
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -pipe" >&5
+printf %s "checking whether compiler supports -pipe... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-pipe
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4079,7 +5142,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4088,18 +5151,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-pipe
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4108,8 +5172,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
-$as_echo_n "checking whether compiler supports -g3... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
+printf %s "checking whether compiler supports -g3... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-g3
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4130,7 +5194,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4139,18 +5203,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-g3
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4161,8 +5226,8 @@ fi
 elif test "x$je_cv_msvc" = "xyes" ; then
   CC="$CC -nologo"
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Zi" >&5
-$as_echo_n "checking whether compiler supports -Zi... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Zi" >&5
+printf %s "checking whether compiler supports -Zi... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Zi
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4183,7 +5248,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4192,18 +5257,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Zi
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4212,8 +5278,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -MT" >&5
-$as_echo_n "checking whether compiler supports -MT... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -MT" >&5
+printf %s "checking whether compiler supports -MT... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-MT
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4234,7 +5300,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4243,18 +5309,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-MT
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4263,8 +5330,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -W3" >&5
-$as_echo_n "checking whether compiler supports -W3... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -W3" >&5
+printf %s "checking whether compiler supports -W3... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-W3
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4285,7 +5352,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4294,18 +5361,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-W3
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4314,8 +5382,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -FS" >&5
-$as_echo_n "checking whether compiler supports -FS... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -FS" >&5
+printf %s "checking whether compiler supports -FS... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-FS
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4336,7 +5404,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4345,18 +5413,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-FS
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4376,8 +5445,8 @@ fi
 if test "x$je_cv_cray" = "xyes" ; then
     if test "x$je_cv_cray_84" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hipa2" >&5
-$as_echo_n "checking whether compiler supports -hipa2... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hipa2" >&5
+printf %s "checking whether compiler supports -hipa2... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-hipa2
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4398,7 +5467,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4407,18 +5476,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-hipa2
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4427,8 +5497,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnognu" >&5
-$as_echo_n "checking whether compiler supports -hnognu... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnognu" >&5
+printf %s "checking whether compiler supports -hnognu... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-hnognu
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4449,7 +5519,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4458,18 +5528,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-hnognu
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4479,8 +5550,8 @@ fi
 
   fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnomessage=128" >&5
-$as_echo_n "checking whether compiler supports -hnomessage=128... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnomessage=128" >&5
+printf %s "checking whether compiler supports -hnomessage=128... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-hnomessage=128
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4501,7 +5572,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4510,18 +5581,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-hnomessage=128
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4530,8 +5602,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnomessage=1357" >&5
-$as_echo_n "checking whether compiler supports -hnomessage=1357... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -hnomessage=1357" >&5
+printf %s "checking whether compiler supports -hnomessage=1357... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-hnomessage=1357
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -4552,7 +5624,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -4561,18 +5633,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-hnomessage=1357
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -4589,40 +5662,36 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+printf %s "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
 fi
 if test -z "$CPP"; then
-  if ${ac_cv_prog_CPP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+  if test ${ac_cv_prog_CPP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+      # Double quotes because $CC needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+#include <limits.h>
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
 
-else
+else $as_nop
   # Broken: fails on valid input.
 continue
 fi
@@ -4634,10 +5703,11 @@ rm -f conftest.err conftest.i conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
   # Broken: success on invalid input.
 continue
-else
+else $as_nop
   # Passes both tests.
 ac_preproc_ok=:
 break
@@ -4647,7 +5717,8 @@ rm -f conftest.err conftest.i conftest.$ac_ext
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
+if $ac_preproc_ok
+then :
   break
 fi
 
@@ -4659,29 +5730,24 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+printf "%s\n" "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+#include <limits.h>
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
 
-else
+else $as_nop
   # Broken: fails on valid input.
 continue
 fi
@@ -4693,10 +5759,11 @@ rm -f conftest.err conftest.i conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
   # Broken: success on invalid input.
 continue
-else
+else $as_nop
   # Passes both tests.
 ac_preproc_ok=:
 break
@@ -4706,11 +5773,12 @@ rm -f conftest.err conftest.i conftest.$ac_ext
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
+if $ac_preproc_ok
+then :
 
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
 See \`config.log' for more details" "$LINENO" 5; }
 fi
@@ -4723,21 +5791,22 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 # Check whether --enable-cxx was given.
-if test "${enable_cxx+set}" = set; then :
+if test ${enable_cxx+y}
+then :
   enableval=$enable_cxx; if test "x$enable_cxx" = "xno" ; then
   enable_cxx="0"
 else
   enable_cxx="1"
 fi
 
-else
+else $as_nop
   enable_cxx="1"
 
 fi
 
 if test "x$enable_cxx" = "x1" ; then
       # ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
+#  https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
 # ===========================================================================
 #
 # SYNOPSIS
@@ -4771,13 +5840,15 @@ if test "x$enable_cxx" = "x1" ; then
 #   Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
 #   Copyright (c) 2015 Paul Norman <penorman@mac.com>
 #   Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
+#   Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
+#   Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
 #
 #   Copying and distribution of this file, with or without modification, are
 #   permitted in any medium without royalty provided the copyright notice
 #   and this notice are preserved.  This file is offered as-is, without any
 #   warranty.
 
-#serial 4
+#serial 11
 
 
 
@@ -4798,7 +5869,18 @@ if test "x$enable_cxx" = "x1" ; then
 
 
 
-  ac_ext=cpp
+
+
+
+
+
+
+
+
+
+
+
+ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
@@ -4808,15 +5890,16 @@ if test -z "$CXX"; then
     CXX=$CCC
   else
     if test -n "$ac_tool_prefix"; then
-  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CXX+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CXX+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CXX"; then
   ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
@@ -4824,11 +5907,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -4839,11 +5926,11 @@ fi
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
-$as_echo "$CXX" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+printf "%s\n" "$CXX" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -4852,15 +5939,16 @@ fi
 fi
 if test -z "$CXX"; then
   ac_ct_CXX=$CXX
-  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CXX+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CXX+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_CXX"; then
   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
@@ -4868,11 +5956,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -4883,11 +5975,11 @@ fi
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
-$as_echo "$ac_ct_CXX" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+printf "%s\n" "$ac_ct_CXX" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -4899,8 +5991,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CXX=$ac_ct_CXX
@@ -4910,7 +6002,7 @@ fi
   fi
 fi
 # Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
 for ac_option in --version -v -V -qversion; do
@@ -4920,7 +6012,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -4930,20 +6022,21 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
-$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
-if ${ac_cv_cxx_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5
+printf %s "checking whether the compiler supports GNU C++... " >&6; }
+if test ${ac_cv_cxx_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -4953,29 +6046,33 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_compiler_gnu=yes
-else
+else $as_nop
   ac_compiler_gnu=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
-$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
 if test $ac_compiler_gnu = yes; then
   GXX=yes
 else
   GXX=
 fi
-ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_test_CXXFLAGS=${CXXFLAGS+y}
 ac_save_CXXFLAGS=$CXXFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
-$as_echo_n "checking whether $CXX accepts -g... " >&6; }
-if ${ac_cv_prog_cxx_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+printf %s "checking whether $CXX accepts -g... " >&6; }
+if test ${ac_cv_prog_cxx_g+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
@@ -4984,57 +6081,60 @@ else
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_cv_prog_cxx_g=yes
-else
+else $as_nop
   CXXFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
 
-else
+else $as_nop
   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   ac_cv_prog_cxx_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
-$as_echo "$ac_cv_prog_cxx_g" >&6; }
-if test "$ac_test_CXXFLAGS" = set; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
+if test $ac_test_CXXFLAGS; then
   CXXFLAGS=$ac_save_CXXFLAGS
 elif test $ac_cv_prog_cxx_g = yes; then
   if test "$GXX" = yes; then
@@ -5049,6 +6149,100 @@ else
     CXXFLAGS=
   fi
 fi
+ac_prog_cxx_stdcxx=no
+if test x$ac_prog_cxx_stdcxx = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 features" >&5
+printf %s "checking for $CXX option to enable C++11 features... " >&6; }
+if test ${ac_cv_prog_cxx_11+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cxx_11=no
+ac_save_CXX=$CXX
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_cxx_conftest_cxx11_program
+_ACEOF
+for ac_arg in '' -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x -qlanglvl=extended0x -AA
+do
+  CXX="$ac_save_CXX $ac_arg"
+  if ac_fn_cxx_try_compile "$LINENO"
+then :
+  ac_cv_prog_cxx_cxx11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CXX=$ac_save_CXX
+fi
+
+if test "x$ac_cv_prog_cxx_cxx11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cxx_cxx11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
+     CXX="$CXX $ac_cv_prog_cxx_cxx11"
+fi
+  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
+  ac_prog_cxx_stdcxx=cxx11
+fi
+fi
+if test x$ac_prog_cxx_stdcxx = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 features" >&5
+printf %s "checking for $CXX option to enable C++98 features... " >&6; }
+if test ${ac_cv_prog_cxx_98+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cxx_98=no
+ac_save_CXX=$CXX
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_cxx_conftest_cxx98_program
+_ACEOF
+for ac_arg in '' -std=gnu++98 -std=c++98 -qlanglvl=extended -AA
+do
+  CXX="$ac_save_CXX $ac_arg"
+  if ac_fn_cxx_try_compile "$LINENO"
+then :
+  ac_cv_prog_cxx_cxx98=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CXX=$ac_save_CXX
+fi
+
+if test "x$ac_cv_prog_cxx_cxx98" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cxx_cxx98" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
+     CXX="$CXX $ac_cv_prog_cxx_cxx98"
+fi
+  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
+  ac_prog_cxx_stdcxx=cxx98
+fi
+fi
+
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -5056,19 +6250,29 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
-      ax_cxx_compile_cxx14_required=false
+  ax_cxx_compile_alternatives="17 1z"    ax_cxx_compile_cxx17_required=false
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
   ac_success=no
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++14 features by default" >&5
-$as_echo_n "checking whether $CXX supports C++14 features by default... " >&6; }
-if ${ax_cv_cxx_compile_cxx14+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+
+    if test x$ac_success = xno; then
+                for alternative in ${ax_cxx_compile_alternatives}; do
+      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
+        cachevar=`printf "%s\n" "ax_cv_cxx_compile_cxx17_$switch" | $as_tr_sh`
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++17 features with $switch" >&5
+printf %s "checking whether $CXX supports C++17 features with $switch... " >&6; }
+if eval test \${$cachevar+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_save_CXX="$CXX"
+           CXX="$CXX $switch"
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -5104,11 +6308,13 @@ namespace cxx11
 
     struct Base
     {
+      virtual ~Base() {}
       virtual void f() {}
     };
 
     struct Derived : public Base
     {
+      virtual ~Derived() override {}
       virtual void f() override {}
     };
 
@@ -5433,7 +6639,7 @@ namespace cxx14
 
   }
 
-  namespace test_digit_seperators
+  namespace test_digit_separators
   {
 
     constexpr auto ten_million = 100'000'000;
@@ -5476,33 +6682,458 @@ namespace cxx14
 
 
 
+
+// If the compiler admits that it is not ready for C++17, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201703L
+
+#error "This is not a C++17 compiler"
+
+#else
+
+#include <initializer_list>
+#include <utility>
+#include <type_traits>
+
+namespace cxx17
+{
+
+  namespace test_constexpr_lambdas
+  {
+
+    constexpr int foo = [](){return 42;}();
+
+  }
+
+  namespace test::nested_namespace::definitions
+  {
+
+  }
+
+  namespace test_fold_expression
+  {
+
+    template<typename... Args>
+    int multiply(Args... args)
+    {
+      return (args * ... * 1);
+    }
+
+    template<typename... Args>
+    bool all(Args... args)
+    {
+      return (args && ...);
+    }
+
+  }
+
+  namespace test_extended_static_assert
+  {
+
+    static_assert (true);
+
+  }
+
+  namespace test_auto_brace_init_list
+  {
+
+    auto foo = {5};
+    auto bar {5};
+
+    static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
+    static_assert(std::is_same<int, decltype(bar)>::value);
+  }
+
+  namespace test_typename_in_template_template_parameter
+  {
+
+    template<template<typename> typename X> struct D;
+
+  }
+
+  namespace test_fallthrough_nodiscard_maybe_unused_attributes
+  {
+
+    int f1()
+    {
+      return 42;
+    }
+
+    [[nodiscard]] int f2()
+    {
+      [[maybe_unused]] auto unused = f1();
+
+      switch (f1())
+      {
+      case 17:
+        f1();
+        [[fallthrough]];
+      case 42:
+        f1();
+      }
+      return f1();
+    }
+
+  }
+
+  namespace test_extended_aggregate_initialization
+  {
+
+    struct base1
+    {
+      int b1, b2 = 42;
+    };
+
+    struct base2
+    {
+      base2() {
+        b3 = 42;
+      }
+      int b3;
+    };
+
+    struct derived : base1, base2
+    {
+        int d;
+    };
+
+    derived d1 {{1, 2}, {}, 4};  // full initialization
+    derived d2 {{}, {}, 4};      // value-initialized bases
+
+  }
+
+  namespace test_general_range_based_for_loop
+  {
+
+    struct iter
+    {
+      int i;
+
+      int& operator* ()
+      {
+        return i;
+      }
+
+      const int& operator* () const
+      {
+        return i;
+      }
+
+      iter& operator++()
+      {
+        ++i;
+        return *this;
+      }
+    };
+
+    struct sentinel
+    {
+      int i;
+    };
+
+    bool operator== (const iter& i, const sentinel& s)
+    {
+      return i.i == s.i;
+    }
+
+    bool operator!= (const iter& i, const sentinel& s)
+    {
+      return !(i == s);
+    }
+
+    struct range
+    {
+      iter begin() const
+      {
+        return {0};
+      }
+
+      sentinel end() const
+      {
+        return {5};
+      }
+    };
+
+    void f()
+    {
+      range r {};
+
+      for (auto i : r)
+      {
+        [[maybe_unused]] auto v = i;
+      }
+    }
+
+  }
+
+  namespace test_lambda_capture_asterisk_this_by_value
+  {
+
+    struct t
+    {
+      int i;
+      int foo()
+      {
+        return [*this]()
+        {
+          return i;
+        }();
+      }
+    };
+
+  }
+
+  namespace test_enum_class_construction
+  {
+
+    enum class byte : unsigned char
+    {};
+
+    byte foo {42};
+
+  }
+
+  namespace test_constexpr_if
+  {
+
+    template <bool cond>
+    int f ()
+    {
+      if constexpr(cond)
+      {
+        return 13;
+      }
+      else
+      {
+        return 42;
+      }
+    }
+
+  }
+
+  namespace test_selection_statement_with_initializer
+  {
+
+    int f()
+    {
+      return 13;
+    }
+
+    int f2()
+    {
+      if (auto i = f(); i > 0)
+      {
+        return 3;
+      }
+
+      switch (auto i = f(); i + 4)
+      {
+      case 17:
+        return 2;
+
+      default:
+        return 1;
+      }
+    }
+
+  }
+
+  namespace test_template_argument_deduction_for_class_templates
+  {
+
+    template <typename T1, typename T2>
+    struct pair
+    {
+      pair (T1 p1, T2 p2)
+        : m1 {p1},
+          m2 {p2}
+      {}
+
+      T1 m1;
+      T2 m2;
+    };
+
+    void f()
+    {
+      [[maybe_unused]] auto p = pair{13, 42u};
+    }
+
+  }
+
+  namespace test_non_type_auto_template_parameters
+  {
+
+    template <auto n>
+    struct B
+    {};
+
+    B<5> b1;
+    B<'a'> b2;
+
+  }
+
+  namespace test_structured_bindings
+  {
+
+    int arr[2] = { 1, 2 };
+    std::pair<int, int> pr = { 1, 2 };
+
+    auto f1() -> int(&)[2]
+    {
+      return arr;
+    }
+
+    auto f2() -> std::pair<int, int>&
+    {
+      return pr;
+    }
+
+    struct S
+    {
+      int x1 : 2;
+      volatile double y1;
+    };
+
+    S f3()
+    {
+      return {};
+    }
+
+    auto [ x1, y1 ] = f1();
+    auto& [ xr1, yr1 ] = f1();
+    auto [ x2, y2 ] = f2();
+    auto& [ xr2, yr2 ] = f2();
+    const auto [ x3, y3 ] = f3();
+
+  }
+
+  namespace test_exception_spec_type_system
+  {
+
+    struct Good {};
+    struct Bad {};
+
+    void g1() noexcept;
+    void g2();
+
+    template<typename T>
+    Bad
+    f(T*, T*);
+
+    template<typename T1, typename T2>
+    Good
+    f(T1*, T2*);
+
+    static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
+
+  }
+
+  namespace test_inline_variables
+  {
+
+    template<class T> void f(T)
+    {}
+
+    template<class T> inline T g(T)
+    {
+      return T{};
+    }
+
+    template<> inline void f<>(int)
+    {}
+
+    template<> int g<>(int)
+    {
+      return 5;
+    }
+
+  }
+
+}  // namespace cxx17
+
+#endif  // __cplusplus < 201703L
+
+
+
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-  ax_cv_cxx_compile_cxx14=yes
-else
-  ax_cv_cxx_compile_cxx14=no
+if ac_fn_cxx_try_compile "$LINENO"
+then :
+  eval $cachevar=yes
+else $as_nop
+  eval $cachevar=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+           CXX="$ac_save_CXX"
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cxx_compile_cxx14" >&5
-$as_echo "$ax_cv_cxx_compile_cxx14" >&6; }
-  if test x$ax_cv_cxx_compile_cxx14 = xyes; then
-    ac_success=yes
+eval ac_res=\$$cachevar
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+        if eval test x\$$cachevar = xyes; then
+          CXX="$CXX $switch"
+          if test -n "$CXXCPP" ; then
+            CXXCPP="$CXXCPP $switch"
+          fi
+          ac_success=yes
+          break
+        fi
+      done
+      if test x$ac_success = xyes; then
+        break
+      fi
+    done
+  fi
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  if test x$ax_cxx_compile_cxx17_required = xtrue; then
+    if test x$ac_success = xno; then
+      as_fn_error $? "*** A compiler with support for C++17 language features is required." "$LINENO" 5
+    fi
   fi
+  if test x$ac_success = xno; then
+    HAVE_CXX17=0
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: No compiler with C++17 support was found" >&5
+printf "%s\n" "$as_me: No compiler with C++17 support was found" >&6;}
+  else
+    HAVE_CXX17=1
+
+printf "%s\n" "#define HAVE_CXX17 1" >>confdefs.h
+
+  fi
+
+
+  if test "x${HAVE_CXX17}" != "x1"; then
+      ax_cxx_compile_alternatives="14 1y"    ax_cxx_compile_cxx14_required=false
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+  ac_success=no
 
 
 
     if test x$ac_success = xno; then
-                for switch in -std=c++14 -std=c++0x +std=c++14 "-h std=c++14"; do
-      cachevar=`$as_echo "ax_cv_cxx_compile_cxx14_$switch" | $as_tr_sh`
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++14 features with $switch" >&5
-$as_echo_n "checking whether $CXX supports C++14 features with $switch... " >&6; }
-if eval \${$cachevar+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+                for alternative in ${ax_cxx_compile_alternatives}; do
+      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
+        cachevar=`printf "%s\n" "ax_cv_cxx_compile_cxx14_$switch" | $as_tr_sh`
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++14 features with $switch" >&5
+printf %s "checking whether $CXX supports C++14 features with $switch... " >&6; }
+if eval test \${$cachevar+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_save_CXX="$CXX"
-         CXX="$CXX $switch"
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+           CXX="$CXX $switch"
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
@@ -5538,11 +7169,13 @@ namespace cxx11
 
     struct Base
     {
+      virtual ~Base() {}
       virtual void f() {}
     };
 
     struct Derived : public Base
     {
+      virtual ~Derived() override {}
       virtual void f() override {}
     };
 
@@ -5867,7 +7500,7 @@ namespace cxx14
 
   }
 
-  namespace test_digit_seperators
+  namespace test_digit_separators
   {
 
     constexpr auto ten_million = 100'000'000;
@@ -5911,23 +7544,28 @@ namespace cxx14
 
 
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   eval $cachevar=yes
-else
+else $as_nop
   eval $cachevar=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         CXX="$ac_save_CXX"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+           CXX="$ac_save_CXX"
 fi
 eval ac_res=\$$cachevar
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-      if eval test x\$$cachevar = xyes; then
-        CXX="$CXX $switch"
-        if test -n "$CXXCPP" ; then
-          CXXCPP="$CXXCPP $switch"
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+        if eval test x\$$cachevar = xyes; then
+          CXX="$CXX $switch"
+          if test -n "$CXXCPP" ; then
+            CXXCPP="$CXXCPP $switch"
+          fi
+          ac_success=yes
+          break
         fi
-        ac_success=yes
+      done
+      if test x$ac_success = xyes; then
         break
       fi
     done
@@ -5945,20 +7583,21 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
   fi
   if test x$ac_success = xno; then
     HAVE_CXX14=0
-    { $as_echo "$as_me:${as_lineno-$LINENO}: No compiler with C++14 support was found" >&5
-$as_echo "$as_me: No compiler with C++14 support was found" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: No compiler with C++14 support was found" >&5
+printf "%s\n" "$as_me: No compiler with C++14 support was found" >&6;}
   else
     HAVE_CXX14=1
 
-$as_echo "#define HAVE_CXX14 1" >>confdefs.h
+printf "%s\n" "#define HAVE_CXX14 1" >>confdefs.h
 
   fi
 
 
-  if test "x${HAVE_CXX14}" = "x1" ; then
+  fi
+  if test "x${HAVE_CXX14}" = "x1" -o "x${HAVE_CXX17}" = "x1"; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wall" >&5
-$as_echo_n "checking whether compiler supports -Wall... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wall" >&5
+printf %s "checking whether compiler supports -Wall... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-Wall
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -5985,7 +7624,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -5994,18 +7633,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-Wall
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -6020,8 +7660,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wextra" >&5
-$as_echo_n "checking whether compiler supports -Wextra... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wextra" >&5
+printf %s "checking whether compiler supports -Wextra... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-Wextra
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -6048,7 +7688,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -6057,18 +7697,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-Wextra
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -6083,8 +7724,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
-$as_echo_n "checking whether compiler supports -g3... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -g3" >&5
+printf %s "checking whether compiler supports -g3... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-g3
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -6111,7 +7752,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -6120,18 +7761,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-g3
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -6156,18 +7798,19 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether libstdc++ linkage is compilable" >&5
-$as_echo_n "checking whether libstdc++ linkage is compilable... " >&6; }
-if ${je_cv_libstdcxx+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether libstdc++ linkage is compilable" >&5
+printf %s "checking whether libstdc++ linkage is compilable... " >&6; }
+if test ${je_cv_libstdcxx+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <stdlib.h>
 
 int
-main ()
+main (void)
 {
 
 	int *arr = (int *)malloc(sizeof(int) * 42);
@@ -6178,16 +7821,17 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_libstdcxx=yes
-else
+else $as_nop
   je_cv_libstdcxx=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_libstdcxx" >&5
-$as_echo "$je_cv_libstdcxx" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_libstdcxx" >&5
+printf "%s\n" "$je_cv_libstdcxx" >&6; }
 
     if test "x${je_cv_libstdcxx}" = "xno" ; then
       LIBS="${SAVED_LIBS}"
@@ -6196,276 +7840,51 @@ $as_echo "$je_cv_libstdcxx" >&6; }
     enable_cxx="0"
   fi
 fi
+if test "x$enable_cxx" = "x1"; then
 
+printf "%s\n" "#define JEMALLOC_ENABLE_CXX  " >>confdefs.h
 
+fi
 
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if ${ac_cv_path_GREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in grep ggrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-$as_echo "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-$as_echo_n "checking for egrep... " >&6; }
-if ${ac_cv_path_EGREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+ac_header= ac_cache=
+for ac_item in $ac_header_c_list
 do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in egrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+  if test $ac_cache; then
+    ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
+    if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
+      printf "%s\n" "#define $ac_item 1" >> confdefs.h
     fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    ac_header= ac_cache=
+  elif test $ac_header; then
+    ac_cache=$ac_item
+  else
+    ac_header=$ac_item
   fi
-else
-  ac_cv_path_EGREP=$EGREP
-fi
-
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-$as_echo "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
+done
 
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
 
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
 
-fi
 
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
 
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
 
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
 
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
 
-fi
+if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes
+then :
 
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
+printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
-
-done
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
-$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
-if ${ac_cv_c_bigendian+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
+printf %s "checking whether byte ordering is bigendian... " >&6; }
+if test ${ac_cv_c_bigendian+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_cv_c_bigendian=unknown
     # See if we're dealing with a universal compiler.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6476,7 +7895,8 @@ else
 	     typedef int dummy;
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
 	# Check for potential -arch flags.  It is not universal unless
 	# there are at least two -arch flags with different values.
@@ -6500,7 +7920,7 @@ if ac_fn_c_try_compile "$LINENO"; then :
 	 fi
        done
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     if test $ac_cv_c_bigendian = unknown; then
       # See if sys/param.h defines the BYTE_ORDER macro.
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6509,7 +7929,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 	     #include <sys/param.h>
 
 int
-main ()
+main (void)
 {
 #if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
 		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
@@ -6521,7 +7941,8 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   # It does; now see whether it defined to BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -6529,7 +7950,7 @@ if ac_fn_c_try_compile "$LINENO"; then :
 		#include <sys/param.h>
 
 int
-main ()
+main (void)
 {
 #if BYTE_ORDER != BIG_ENDIAN
 		 not big endian
@@ -6539,14 +7960,15 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_c_bigendian=yes
-else
+else $as_nop
   ac_cv_c_bigendian=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     fi
     if test $ac_cv_c_bigendian = unknown; then
       # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
@@ -6555,7 +7977,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 #include <limits.h>
 
 int
-main ()
+main (void)
 {
 #if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
 	      bogus endian macros
@@ -6565,14 +7987,15 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   # It does; now see whether it defined to _BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <limits.h>
 
 int
-main ()
+main (void)
 {
 #ifndef _BIG_ENDIAN
 		 not big endian
@@ -6582,31 +8005,33 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_c_bigendian=yes
-else
+else $as_nop
   ac_cv_c_bigendian=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     fi
     if test $ac_cv_c_bigendian = unknown; then
       # Compile a test program.
-      if test "$cross_compiling" = yes; then :
+      if test "$cross_compiling" = yes
+then :
   # Try to guess by grepping values from an object file.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-short int ascii_mm[] =
+unsigned short int ascii_mm[] =
 		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
-		short int ascii_ii[] =
+		unsigned short int ascii_ii[] =
 		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
 		int use_ascii (int i) {
 		  return ascii_mm[i] + ascii_ii[i];
 		}
-		short int ebcdic_ii[] =
+		unsigned short int ebcdic_ii[] =
 		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
-		short int ebcdic_mm[] =
+		unsigned short int ebcdic_mm[] =
 		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
 		int use_ebcdic (int i) {
 		  return ebcdic_mm[i] + ebcdic_ii[i];
@@ -6614,14 +8039,15 @@ short int ascii_mm[] =
 		extern int foo;
 
 int
-main ()
+main (void)
 {
 return use_ascii (foo) == use_ebcdic (foo);
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
 	      ac_cv_c_bigendian=yes
 	    fi
@@ -6634,13 +8060,13 @@ if ac_fn_c_try_compile "$LINENO"; then :
 	      fi
 	    fi
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
-main ()
+main (void)
 {
 
 	     /* Are we little or big endian?  From Harbison&Steele.  */
@@ -6656,9 +8082,10 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   ac_cv_c_bigendian=no
-else
+else $as_nop
   ac_cv_c_bigendian=yes
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -6667,8 +8094,8 @@ fi
 
     fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
-$as_echo "$ac_cv_c_bigendian" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
+printf "%s\n" "$ac_cv_c_bigendian" >&6; }
  case $ac_cv_c_bigendian in #(
    yes)
      ac_cv_big_endian=1;; #(
@@ -6676,7 +8103,7 @@ $as_echo "$ac_cv_c_bigendian" >&6; }
      ac_cv_big_endian=0 ;; #(
    universal)
 
-$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
+printf "%s\n" "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
 
      ;; #(
    *)
@@ -6685,9 +8112,8 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
  esac
 
 if test "x${ac_cv_big_endian}" = "x1" ; then
-  cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_BIG_ENDIAN
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_BIG_ENDIAN  " >>confdefs.h
 
 fi
 
@@ -6704,24 +8130,26 @@ fi
 
 if test "x${je_cv_msvc}" = "xyes" ; then
   LG_SIZEOF_PTR=LG_SIZEOF_PTR_WIN
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Using a predefined value for sizeof(void *): 4 for 32-bit, 8 for 64-bit" >&5
-$as_echo "Using a predefined value for sizeof(void *): 4 for 32-bit, 8 for 64-bit" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Using a predefined value for sizeof(void *): 4 for 32-bit, 8 for 64-bit" >&5
+printf "%s\n" "Using a predefined value for sizeof(void *): 4 for 32-bit, 8 for 64-bit" >&6; }
 else
   # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
-$as_echo_n "checking size of void *... " >&6; }
-if ${ac_cv_sizeof_void_p+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :
-
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
+printf %s "checking size of void *... " >&6; }
+if test ${ac_cv_sizeof_void_p+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"
+then :
+
+else $as_nop
   if test "$ac_cv_type_void_p" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (void *)
 See \`config.log' for more details" "$LINENO" 5; }
    else
@@ -6730,14 +8158,12 @@ See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
-$as_echo "$ac_cv_sizeof_void_p" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
+printf "%s\n" "$ac_cv_sizeof_void_p" >&6; }
 
 
 
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
-_ACEOF
+printf "%s\n" "#define SIZEOF_VOID_P $ac_cv_sizeof_void_p" >>confdefs.h
 
 
   if test "x${ac_cv_sizeof_void_p}" = "x8" ; then
@@ -6748,26 +8174,27 @@ _ACEOF
     as_fn_error $? "Unsupported pointer size: ${ac_cv_sizeof_void_p}" "$LINENO" 5
   fi
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_SIZEOF_PTR $LG_SIZEOF_PTR
-_ACEOF
+
+printf "%s\n" "#define LG_SIZEOF_PTR $LG_SIZEOF_PTR" >>confdefs.h
 
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
-$as_echo_n "checking size of int... " >&6; }
-if ${ac_cv_sizeof_int+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :
-
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
+printf %s "checking size of int... " >&6; }
+if test ${ac_cv_sizeof_int+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"
+then :
+
+else $as_nop
   if test "$ac_cv_type_int" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (int)
 See \`config.log' for more details" "$LINENO" 5; }
    else
@@ -6776,14 +8203,12 @@ See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
-$as_echo "$ac_cv_sizeof_int" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
+printf "%s\n" "$ac_cv_sizeof_int" >&6; }
 
 
 
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_INT $ac_cv_sizeof_int
-_ACEOF
+printf "%s\n" "#define SIZEOF_INT $ac_cv_sizeof_int" >>confdefs.h
 
 
 if test "x${ac_cv_sizeof_int}" = "x8" ; then
@@ -6793,26 +8218,27 @@ elif test "x${ac_cv_sizeof_int}" = "x4" ; then
 else
   as_fn_error $? "Unsupported int size: ${ac_cv_sizeof_int}" "$LINENO" 5
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_SIZEOF_INT $LG_SIZEOF_INT
-_ACEOF
+
+printf "%s\n" "#define LG_SIZEOF_INT $LG_SIZEOF_INT" >>confdefs.h
 
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
-$as_echo_n "checking size of long... " >&6; }
-if ${ac_cv_sizeof_long+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :
-
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
+printf %s "checking size of long... " >&6; }
+if test ${ac_cv_sizeof_long+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
+then :
+
+else $as_nop
   if test "$ac_cv_type_long" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long)
 See \`config.log' for more details" "$LINENO" 5; }
    else
@@ -6821,14 +8247,12 @@ See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
-$as_echo "$ac_cv_sizeof_long" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
+printf "%s\n" "$ac_cv_sizeof_long" >&6; }
 
 
 
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_LONG $ac_cv_sizeof_long
-_ACEOF
+printf "%s\n" "#define SIZEOF_LONG $ac_cv_sizeof_long" >>confdefs.h
 
 
 if test "x${ac_cv_sizeof_long}" = "x8" ; then
@@ -6838,26 +8262,27 @@ elif test "x${ac_cv_sizeof_long}" = "x4" ; then
 else
   as_fn_error $? "Unsupported long size: ${ac_cv_sizeof_long}" "$LINENO" 5
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_SIZEOF_LONG $LG_SIZEOF_LONG
-_ACEOF
+
+printf "%s\n" "#define LG_SIZEOF_LONG $LG_SIZEOF_LONG" >>confdefs.h
 
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
-$as_echo_n "checking size of long long... " >&6; }
-if ${ac_cv_sizeof_long_long+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :
-
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
+printf %s "checking size of long long... " >&6; }
+if test ${ac_cv_sizeof_long_long+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"
+then :
+
+else $as_nop
   if test "$ac_cv_type_long_long" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (long long)
 See \`config.log' for more details" "$LINENO" 5; }
    else
@@ -6866,14 +8291,12 @@ See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
-$as_echo "$ac_cv_sizeof_long_long" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
+printf "%s\n" "$ac_cv_sizeof_long_long" >&6; }
 
 
 
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
-_ACEOF
+printf "%s\n" "#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long" >>confdefs.h
 
 
 if test "x${ac_cv_sizeof_long_long}" = "x8" ; then
@@ -6883,26 +8306,27 @@ elif test "x${ac_cv_sizeof_long_long}" = "x4" ; then
 else
   as_fn_error $? "Unsupported long long size: ${ac_cv_sizeof_long_long}" "$LINENO" 5
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_SIZEOF_LONG_LONG $LG_SIZEOF_LONG_LONG
-_ACEOF
+
+printf "%s\n" "#define LG_SIZEOF_LONG_LONG $LG_SIZEOF_LONG_LONG" >>confdefs.h
 
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
 # This bug is HP SR number 8606223364.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of intmax_t" >&5
-$as_echo_n "checking size of intmax_t... " >&6; }
-if ${ac_cv_sizeof_intmax_t+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (intmax_t))" "ac_cv_sizeof_intmax_t"        "$ac_includes_default"; then :
-
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of intmax_t" >&5
+printf %s "checking size of intmax_t... " >&6; }
+if test ${ac_cv_sizeof_intmax_t+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (intmax_t))" "ac_cv_sizeof_intmax_t"        "$ac_includes_default"
+then :
+
+else $as_nop
   if test "$ac_cv_type_intmax_t" = yes; then
-     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "cannot compute sizeof (intmax_t)
 See \`config.log' for more details" "$LINENO" 5; }
    else
@@ -6911,14 +8335,12 @@ See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_intmax_t" >&5
-$as_echo "$ac_cv_sizeof_intmax_t" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_intmax_t" >&5
+printf "%s\n" "$ac_cv_sizeof_intmax_t" >&6; }
 
 
 
-cat >>confdefs.h <<_ACEOF
-#define SIZEOF_INTMAX_T $ac_cv_sizeof_intmax_t
-_ACEOF
+printf "%s\n" "#define SIZEOF_INTMAX_T $ac_cv_sizeof_intmax_t" >>confdefs.h
 
 
 if test "x${ac_cv_sizeof_intmax_t}" = "x16" ; then
@@ -6930,31 +8352,34 @@ elif test "x${ac_cv_sizeof_intmax_t}" = "x4" ; then
 else
   as_fn_error $? "Unsupported intmax_t size: ${ac_cv_sizeof_intmax_t}" "$LINENO" 5
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_SIZEOF_INTMAX_T $LG_SIZEOF_INTMAX_T
-_ACEOF
 
+printf "%s\n" "#define LG_SIZEOF_INTMAX_T $LG_SIZEOF_INTMAX_T" >>confdefs.h
 
-# Make sure we can run config.sub.
-$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
-$as_echo_n "checking build system type... " >&6; }
-if ${ac_cv_build+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+
+
+
+  # Make sure we can run config.sub.
+$SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+printf %s "checking build system type... " >&6; }
+if test ${ac_cv_build+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
-  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+  ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
-ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
-$as_echo "$ac_cv_build" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+printf "%s\n" "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
@@ -6973,21 +8398,22 @@ IFS=$ac_save_IFS
 case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
-$as_echo_n "checking host system type... " >&6; }
-if ${ac_cv_host+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+printf %s "checking host system type... " >&6; }
+if test ${ac_cv_host+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
-  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+  ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
-$as_echo "$ac_cv_host" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+printf "%s\n" "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
 *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
@@ -7011,36 +8437,39 @@ case "${host_cpu}" in
   i686|x86_64)
 	HAVE_CPU_SPINWAIT=1
 	if test "x${je_cv_msvc}" = "xyes" ; then
-	    if ${je_cv_pause_msvc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pause instruction MSVC is compilable" >&5
-$as_echo_n "checking whether pause instruction MSVC is compilable... " >&6; }
-if ${je_cv_pause_msvc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+	    if test ${je_cv_pause_msvc+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pause instruction MSVC is compilable" >&5
+printf %s "checking whether pause instruction MSVC is compilable... " >&6; }
+if test ${je_cv_pause_msvc+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 _mm_pause(); return 0;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_pause_msvc=yes
-else
+else $as_nop
   je_cv_pause_msvc=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_pause_msvc" >&5
-$as_echo "$je_cv_pause_msvc" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pause_msvc" >&5
+printf "%s\n" "$je_cv_pause_msvc" >&6; }
 
 fi
 
@@ -7048,36 +8477,39 @@ fi
 		CPU_SPINWAIT='_mm_pause()'
 	    fi
 	else
-	    if ${je_cv_pause+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pause instruction is compilable" >&5
-$as_echo_n "checking whether pause instruction is compilable... " >&6; }
-if ${je_cv_pause+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+	    if test ${je_cv_pause+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pause instruction is compilable" >&5
+printf %s "checking whether pause instruction is compilable... " >&6; }
+if test ${je_cv_pause+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 __asm__ volatile("pause"); return 0;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_pause=yes
-else
+else $as_nop
   je_cv_pause=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_pause" >&5
-$as_echo "$je_cv_pause" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pause" >&5
+printf "%s\n" "$je_cv_pause" >&6; }
 
 fi
 
@@ -7086,24 +8518,65 @@ fi
 	    fi
 	fi
 	;;
+  aarch64|arm*)
+	HAVE_CPU_SPINWAIT=1
+		if test ${je_cv_isb+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether isb instruction is compilable" >&5
+printf %s "checking whether isb instruction is compilable... " >&6; }
+if test ${je_cv_isb+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+__asm__ volatile("isb"); return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_isb=yes
+else $as_nop
+  je_cv_isb=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_isb" >&5
+printf "%s\n" "$je_cv_isb" >&6; }
+
+fi
+
+	if test "x${je_cv_isb}" = "xyes" ; then
+	    CPU_SPINWAIT='__asm__ volatile("isb")'
+	fi
+	;;
   *)
 	HAVE_CPU_SPINWAIT=0
 	;;
 esac
-cat >>confdefs.h <<_ACEOF
-#define HAVE_CPU_SPINWAIT $HAVE_CPU_SPINWAIT
-_ACEOF
 
-cat >>confdefs.h <<_ACEOF
-#define CPU_SPINWAIT $CPU_SPINWAIT
-_ACEOF
+printf "%s\n" "#define HAVE_CPU_SPINWAIT $HAVE_CPU_SPINWAIT" >>confdefs.h
+
+
+printf "%s\n" "#define CPU_SPINWAIT $CPU_SPINWAIT" >>confdefs.h
 
 
 
 # Check whether --with-lg_vaddr was given.
-if test "${with_lg_vaddr+set}" = set; then :
+if test ${with_lg_vaddr+y}
+then :
   withval=$with_lg_vaddr; LG_VADDR="$with_lg_vaddr"
-else
+else $as_nop
   LG_VADDR="detect"
 fi
 
@@ -7111,8 +8584,8 @@ fi
 case "${host_cpu}" in
   aarch64)
     if test "x$LG_VADDR" = "xdetect"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
-$as_echo_n "checking number of significant virtual address bits... " >&6; }
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
+printf %s "checking number of significant virtual address bits... " >&6; }
       if test "x${LG_SIZEOF_PTR}" = "x2" ; then
         #aarch64 ILP32
         LG_VADDR=32
@@ -7120,20 +8593,22 @@ $as_echo_n "checking number of significant virtual address bits... " >&6; }
         #aarch64 LP64
         LG_VADDR=48
       fi
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LG_VADDR" >&5
-$as_echo "$LG_VADDR" >&6; }
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LG_VADDR" >&5
+printf "%s\n" "$LG_VADDR" >&6; }
     fi
     ;;
   x86_64)
     if test "x$LG_VADDR" = "xdetect"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
-$as_echo_n "checking number of significant virtual address bits... " >&6; }
-if ${je_cv_lg_vaddr+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
+printf %s "checking number of significant virtual address bits... " >&6; }
+if test ${je_cv_lg_vaddr+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test "$cross_compiling" = yes
+then :
   je_cv_lg_vaddr=57
-else
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -7147,7 +8622,7 @@ typedef unsigned __int32 uint32_t;
 #endif
 
 int
-main ()
+main (void)
 {
 
 	uint32_t r[4];
@@ -7177,9 +8652,10 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   je_cv_lg_vaddr=`cat conftest.out`
-else
+else $as_nop
   je_cv_lg_vaddr=error
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -7187,15 +8663,14 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_lg_vaddr" >&5
-$as_echo "$je_cv_lg_vaddr" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_lg_vaddr" >&5
+printf "%s\n" "$je_cv_lg_vaddr" >&6; }
       if test "x${je_cv_lg_vaddr}" != "x" ; then
         LG_VADDR="${je_cv_lg_vaddr}"
       fi
       if test "x${LG_VADDR}" != "xerror" ; then
-        cat >>confdefs.h <<_ACEOF
-#define LG_VADDR $LG_VADDR
-_ACEOF
+
+printf "%s\n" "#define LG_VADDR $LG_VADDR" >>confdefs.h
 
       else
         as_fn_error $? "cannot determine number of significant virtual address bits" "$LINENO" 5
@@ -7204,8 +8679,8 @@ _ACEOF
     ;;
   *)
     if test "x$LG_VADDR" = "xdetect"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
-$as_echo_n "checking number of significant virtual address bits... " >&6; }
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking number of significant virtual address bits" >&5
+printf %s "checking number of significant virtual address bits... " >&6; }
       if test "x${LG_SIZEOF_PTR}" = "x3" ; then
         LG_VADDR=64
       elif test "x${LG_SIZEOF_PTR}" = "x2" ; then
@@ -7215,14 +8690,13 @@ $as_echo_n "checking number of significant virtual address bits... " >&6; }
       else
         as_fn_error $? "Unsupported lg(pointer size): ${LG_SIZEOF_PTR}" "$LINENO" 5
       fi
-      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LG_VADDR" >&5
-$as_echo "$LG_VADDR" >&6; }
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LG_VADDR" >&5
+printf "%s\n" "$LG_VADDR" >&6; }
     fi
     ;;
 esac
-cat >>confdefs.h <<_ACEOF
-#define LG_VADDR $LG_VADDR
-_ACEOF
+
+printf "%s\n" "#define LG_VADDR $LG_VADDR" >>confdefs.h
 
 
 LD_PRELOAD_VAR="LD_PRELOAD"
@@ -7241,7 +8715,7 @@ CTARGET='-o $@'
 LDTARGET='-o $@'
 TEST_LD_MODE=
 EXTRA_LDFLAGS=
-ARFLAGS='crus'
+ARFLAGS='crs'
 AROUT=' $@'
 CC_MM=1
 
@@ -7259,11 +8733,12 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
@@ -7271,11 +8746,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AR="${ac_tool_prefix}ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7286,11 +8765,11 @@ fi
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+printf "%s\n" "$AR" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7299,11 +8778,12 @@ if test -z "$ac_cv_prog_AR"; then
   ac_ct_AR=$AR
   # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
@@ -7311,11 +8791,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_AR="ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7326,11 +8810,11 @@ fi
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+printf "%s\n" "$ac_ct_AR" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_AR" = x; then
@@ -7338,8 +8822,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     AR=$ac_ct_AR
@@ -7355,11 +8839,12 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}nm", so it can be a program name with args.
 set dummy ${ac_tool_prefix}nm; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_NM+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_NM+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$NM"; then
   ac_cv_prog_NM="$NM" # Let the user override the test.
 else
@@ -7367,11 +8852,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_NM="${ac_tool_prefix}nm"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7382,11 +8871,11 @@ fi
 fi
 NM=$ac_cv_prog_NM
 if test -n "$NM"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NM" >&5
-$as_echo "$NM" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $NM" >&5
+printf "%s\n" "$NM" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7395,11 +8884,12 @@ if test -z "$ac_cv_prog_NM"; then
   ac_ct_NM=$NM
   # Extract the first word of "nm", so it can be a program name with args.
 set dummy nm; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_NM+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_NM+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_NM"; then
   ac_cv_prog_ac_ct_NM="$ac_ct_NM" # Let the user override the test.
 else
@@ -7407,11 +8897,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_NM="nm"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7422,11 +8916,11 @@ fi
 fi
 ac_ct_NM=$ac_cv_prog_ac_ct_NM
 if test -n "$ac_ct_NM"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NM" >&5
-$as_echo "$ac_ct_NM" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NM" >&5
+printf "%s\n" "$ac_ct_NM" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_NM" = x; then
@@ -7434,8 +8928,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     NM=$ac_ct_NM
@@ -7449,11 +8943,12 @@ for ac_prog in gawk mawk nawk awk
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AWK+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AWK+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
@@ -7461,11 +8956,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -7476,11 +8975,11 @@ fi
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
-$as_echo "$AWK" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+printf "%s\n" "$AWK" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -7491,7 +8990,8 @@ done
 
 
 # Check whether --with-version was given.
-if test "${with_version+set}" = set; then :
+if test ${with_version+y}
+then :
   withval=$with_version;
     echo "${with_version}" | grep '^[0-9]\+\.[0-9]\+\.[0-9]\+-[0-9]\+-g[0-9a-f]\+$' 2>&1 1>/dev/null
     if test $? -eq 0 ; then
@@ -7503,7 +9003,7 @@ if test "${with_version+set}" = set; then :
       fi
     fi
 
-else
+else $as_nop
 
         if test "x`test ! \"${srcroot}\" && cd \"${srcroot}\"; git rev-parse --is-inside-work-tree 2>/dev/null`" = "xtrue" ; then
                         for pattern in '[0-9].[0-9].[0-9]' '[0-9].[0-9].[0-9][0-9]' \
@@ -7525,9 +9025,9 @@ fi
 
 if test ! -e "${objroot}VERSION" ; then
   if test ! -e "${srcroot}VERSION" ; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Missing VERSION file, and unable to generate it; creating bogus VERSION" >&5
-$as_echo "Missing VERSION file, and unable to generate it; creating bogus VERSION" >&6; }
-    echo "0.0.0-0-g0000000000000000000000000000000000000000" > "${objroot}VERSION"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Missing VERSION file, and unable to generate it; creating bogus VERSION" >&5
+printf "%s\n" "Missing VERSION file, and unable to generate it; creating bogus VERSION" >&6; }
+    echo "0.0.0-0-g000000missing_version_try_git_fetch_tags" > "${objroot}VERSION"
   else
     cp ${srcroot}VERSION ${objroot}VERSION
   fi
@@ -7546,6 +9046,7 @@ jemalloc_version_gid=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print $5}'
 
 
 default_retain="0"
+zero_realloc_default_free="0"
 maps_coalesce="1"
 DUMP_SYMS="${NM} -a"
 SYM_PREFIX=""
@@ -7563,8 +9064,17 @@ case "${host}" in
 	SYM_PREFIX="_"
 	;;
   *-*-freebsd*)
+	T_APPEND_V=-D_BSD_SOURCE
+  if test "x${CPPFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CPPFLAGS="${CPPFLAGS}${T_APPEND_V}"
+else
+  CPPFLAGS="${CPPFLAGS} ${T_APPEND_V}"
+fi
+
+
 	abi="elf"
-	$as_echo "#define JEMALLOC_SYSCTL_VM_OVERCOMMIT  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_SYSCTL_VM_OVERCOMMIT  " >>confdefs.h
 
 	force_lazy_lock="1"
 	;;
@@ -7578,7 +9088,7 @@ case "${host}" in
   *-*-bitrig*)
 	abi="elf"
 	;;
-  *-*-linux-android)
+  *-*-linux-android*)
 		T_APPEND_V=-D_GNU_SOURCE
   if test "x${CPPFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   CPPFLAGS="${CPPFLAGS}${T_APPEND_V}"
@@ -7588,20 +9098,27 @@ fi
 
 
 	abi="elf"
-	$as_echo "#define JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS  " >>confdefs.h
+	glibc="0"
+
+printf "%s\n" "#define JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_HAS_ALLOCA_H  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_HAS_ALLOCA_H 1" >>confdefs.h
 
-	$as_echo "#define JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_C11_ATOMICS 1" >>confdefs.h
+printf "%s\n" "#define JEMALLOC_C11_ATOMICS  " >>confdefs.h
 
 	force_tls="0"
 	if test "${LG_SIZEOF_PTR}" = "3"; then
 	  default_retain="1"
 	fi
+	zero_realloc_default_free="1"
 	;;
   *-*-linux*)
 		T_APPEND_V=-D_GNU_SOURCE
@@ -7613,19 +9130,26 @@ fi
 
 
 	abi="elf"
-	$as_echo "#define JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS  " >>confdefs.h
+	glibc="1"
 
-	$as_echo "#define JEMALLOC_HAS_ALLOCA_H 1" >>confdefs.h
+printf "%s\n" "#define JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_HAS_ALLOCA_H  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_USE_CXX_THROW  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_USE_CXX_THROW  " >>confdefs.h
 
 	if test "${LG_SIZEOF_PTR}" = "3"; then
 	  default_retain="1"
 	fi
+	zero_realloc_default_free="1"
 	;;
   *-*-kfreebsd*)
 		T_APPEND_V=-D_GNU_SOURCE
@@ -7637,18 +9161,22 @@ fi
 
 
 	abi="elf"
-	$as_echo "#define JEMALLOC_HAS_ALLOCA_H 1" >>confdefs.h
 
-	$as_echo "#define JEMALLOC_SYSCTL_VM_OVERCOMMIT  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_HAS_ALLOCA_H  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_SYSCTL_VM_OVERCOMMIT  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_THREADED_INIT  " >>confdefs.h
 
-	$as_echo "#define JEMALLOC_USE_CXX_THROW  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_USE_CXX_THROW  " >>confdefs.h
 
 	;;
   *-*-netbsd*)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking ABI" >&5
-$as_echo_n "checking ABI... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking ABI" >&5
+printf %s "checking ABI... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __ELF__
@@ -7658,21 +9186,22 @@ $as_echo_n "checking ABI... " >&6; }
 #endif
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   abi="elf"
-else
+else $as_nop
   abi="aout"
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $abi" >&5
-$as_echo "$abi" >&6; }
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $abi" >&5
+printf "%s\n" "$abi" >&6; }
 	;;
   *-*-solaris2*)
 	abi="elf"
@@ -7737,25 +9266,32 @@ fi
 	if test "${LG_SIZEOF_PTR}" = "3"; then
 	  default_retain="1"
 	fi
+	zero_realloc_default_free="1"
+	;;
+  *-*-nto-qnx)
+	abi="elf"
+  force_tls="0"
+
+printf "%s\n" "#define JEMALLOC_HAS_ALLOCA_H  " >>confdefs.h
+
 	;;
   *)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Unsupported operating system: ${host}" >&5
-$as_echo "Unsupported operating system: ${host}" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Unsupported operating system: ${host}" >&5
+printf "%s\n" "Unsupported operating system: ${host}" >&6; }
 	abi="elf"
 	;;
 esac
 
 JEMALLOC_USABLE_SIZE_CONST=const
-for ac_header in malloc.h
+       for ac_header in malloc.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
-if test "x$ac_cv_header_malloc_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_MALLOC_H 1
-_ACEOF
+  ac_fn_c_check_header_compile "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
+if test "x$ac_cv_header_malloc_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_MALLOC_H 1" >>confdefs.h
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether malloc_usable_size definition can use const argument" >&5
-$as_echo_n "checking whether malloc_usable_size definition can use const argument... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether malloc_usable_size definition can use const argument" >&5
+printf %s "checking whether malloc_usable_size definition can use const argument... " >&6; }
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <malloc.h>
@@ -7763,34 +9299,33 @@ $as_echo_n "checking whether malloc_usable_size definition can use const argumen
     size_t malloc_usable_size(const void *ptr);
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 
-else
+else $as_nop
 
                 JEMALLOC_USABLE_SIZE_CONST=
-                { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
 fi
 
 done
 
-cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_USABLE_SIZE_CONST $JEMALLOC_USABLE_SIZE_CONST
-_ACEOF
+printf "%s\n" "#define JEMALLOC_USABLE_SIZE_CONST $JEMALLOC_USABLE_SIZE_CONST" >>confdefs.h
 
 
 
@@ -7815,11 +9350,12 @@ _ACEOF
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing log" >&5
-$as_echo_n "checking for library containing log... " >&6; }
-if ${ac_cv_search_log+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing log" >&5
+printf %s "checking for library containing log... " >&6; }
+if test ${ac_cv_search_log+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7827,49 +9363,51 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char log ();
 int
-main ()
+main (void)
 {
 return log ();
   ;
   return 0;
 }
 _ACEOF
-for ac_lib in '' m; do
+for ac_lib in '' m
+do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_search_log=$ac_res
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext
-  if ${ac_cv_search_log+:} false; then :
+  if test ${ac_cv_search_log+y}
+then :
   break
 fi
 done
-if ${ac_cv_search_log+:} false; then :
+if test ${ac_cv_search_log+y}
+then :
 
-else
+else $as_nop
   ac_cv_search_log=no
 fi
 rm conftest.$ac_ext
 LIBS=$ac_func_search_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_log" >&5
-$as_echo "$ac_cv_search_log" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_log" >&5
+printf "%s\n" "$ac_cv_search_log" >&6; }
 ac_res=$ac_cv_search_log
-if test "$ac_res" != no; then :
+if test "$ac_res" != no
+then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
-else
+else $as_nop
   as_fn_error $? "Missing math functions" "$LINENO" 5
 fi
 
@@ -7881,40 +9419,43 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __attribute__ syntax is compilable" >&5
-$as_echo_n "checking whether __attribute__ syntax is compilable... " >&6; }
-if ${je_cv_attribute+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether __attribute__ syntax is compilable" >&5
+printf %s "checking whether __attribute__ syntax is compilable... " >&6; }
+if test ${je_cv_attribute+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 static __attribute__((unused)) void foo(void){}
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_attribute=yes
-else
+else $as_nop
   je_cv_attribute=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_attribute" >&5
-$as_echo "$je_cv_attribute" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_attribute" >&5
+printf "%s\n" "$je_cv_attribute" >&6; }
 
 if test "x${je_cv_attribute}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_ATTR  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR  " >>confdefs.h
 
   if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fvisibility=hidden" >&5
-$as_echo_n "checking whether compiler supports -fvisibility=hidden... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fvisibility=hidden" >&5
+printf %s "checking whether compiler supports -fvisibility=hidden... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-fvisibility=hidden
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -7935,7 +9476,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -7944,18 +9485,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-fvisibility=hidden
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -7964,8 +9506,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fvisibility=hidden" >&5
-$as_echo_n "checking whether compiler supports -fvisibility=hidden... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fvisibility=hidden" >&5
+printf %s "checking whether compiler supports -fvisibility=hidden... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-fvisibility=hidden
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -7992,7 +9534,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8001,18 +9543,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-fvisibility=hidden
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -8031,8 +9574,8 @@ fi
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8053,7 +9596,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8062,18 +9605,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8082,8 +9626,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8104,7 +9648,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8113,18 +9657,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8133,16 +9678,17 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether tls_model attribute is compilable" >&5
-$as_echo_n "checking whether tls_model attribute is compilable... " >&6; }
-if ${je_cv_tls_model+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether tls_model attribute is compilable" >&5
+printf %s "checking whether tls_model attribute is compilable... " >&6; }
+if test ${je_cv_tls_model+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 static __thread int
                __attribute__((tls_model("initial-exec"), unused)) foo;
@@ -8151,16 +9697,17 @@ static __thread int
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_tls_model=yes
-else
+else $as_nop
   je_cv_tls_model=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_tls_model" >&5
-$as_echo "$je_cv_tls_model" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_tls_model" >&5
+printf "%s\n" "$je_cv_tls_model" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -8174,8 +9721,8 @@ fi
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8196,7 +9743,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8205,18 +9752,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8225,8 +9773,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8247,7 +9795,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8256,18 +9804,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8276,32 +9825,34 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether alloc_size attribute is compilable" >&5
-$as_echo_n "checking whether alloc_size attribute is compilable... " >&6; }
-if ${je_cv_alloc_size+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether alloc_size attribute is compilable" >&5
+printf %s "checking whether alloc_size attribute is compilable... " >&6; }
+if test ${je_cv_alloc_size+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 void *foo(size_t size) __attribute__((alloc_size(1)));
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_alloc_size=yes
-else
+else $as_nop
   je_cv_alloc_size=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_alloc_size" >&5
-$as_echo "$je_cv_alloc_size" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_alloc_size" >&5
+printf "%s\n" "$je_cv_alloc_size" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -8312,14 +9863,15 @@ fi
 
 
 if test "x${je_cv_alloc_size}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_ATTR_ALLOC_SIZE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_ALLOC_SIZE  " >>confdefs.h
 
 fi
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8340,7 +9892,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8349,18 +9901,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8369,8 +9922,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8391,7 +9944,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8400,18 +9953,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8420,32 +9974,34 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether format(gnu_printf, ...) attribute is compilable" >&5
-$as_echo_n "checking whether format(gnu_printf, ...) attribute is compilable... " >&6; }
-if ${je_cv_format_gnu_printf+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether format(gnu_printf, ...) attribute is compilable" >&5
+printf %s "checking whether format(gnu_printf, ...) attribute is compilable... " >&6; }
+if test ${je_cv_format_gnu_printf+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 void *foo(const char *format, ...) __attribute__((format(gnu_printf, 1, 2)));
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_format_gnu_printf=yes
-else
+else $as_nop
   je_cv_format_gnu_printf=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_gnu_printf" >&5
-$as_echo "$je_cv_format_gnu_printf" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_gnu_printf" >&5
+printf "%s\n" "$je_cv_format_gnu_printf" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -8456,14 +10012,15 @@ fi
 
 
 if test "x${je_cv_format_gnu_printf}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF  " >>confdefs.h
 
 fi
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8484,7 +10041,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8493,18 +10050,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8513,8 +10071,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8535,7 +10093,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8544,18 +10102,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8564,32 +10123,34 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether format(printf, ...) attribute is compilable" >&5
-$as_echo_n "checking whether format(printf, ...) attribute is compilable... " >&6; }
-if ${je_cv_format_printf+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether format(printf, ...) attribute is compilable" >&5
+printf %s "checking whether format(printf, ...) attribute is compilable... " >&6; }
+if test ${je_cv_format_printf+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 void *foo(const char *format, ...) __attribute__((format(printf, 1, 2)));
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_format_printf=yes
-else
+else $as_nop
   je_cv_format_printf=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_printf" >&5
-$as_echo "$je_cv_format_printf" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_printf" >&5
+printf "%s\n" "$je_cv_format_printf" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -8600,15 +10161,16 @@ fi
 
 
 if test "x${je_cv_format_printf}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_ATTR_FORMAT_PRINTF  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_FORMAT_PRINTF  " >>confdefs.h
 
 fi
 
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8629,7 +10191,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8638,18 +10200,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8658,8 +10221,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -8680,7 +10243,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -8689,18 +10252,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -8709,32 +10273,34 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether format(printf, ...) attribute is compilable" >&5
-$as_echo_n "checking whether format(printf, ...) attribute is compilable... " >&6; }
-if ${je_cv_format_arg+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether format(printf, ...) attribute is compilable" >&5
+printf %s "checking whether format(printf, ...) attribute is compilable... " >&6; }
+if test ${je_cv_format_arg+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 const char * __attribute__((__format_arg__(1))) foo(const char *format);
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_format_arg=yes
-else
+else $as_nop
   je_cv_format_arg=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_arg" >&5
-$as_echo "$je_cv_format_arg" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_format_arg" >&5
+printf "%s\n" "$je_cv_format_arg" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -8745,19 +10311,430 @@ fi
 
 
 if test "x${je_cv_format_arg}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_ATTR_FORMAT_ARG  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_FORMAT_ARG  " >>confdefs.h
+
+fi
+
+SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wimplicit-fallthrough" >&5
+printf %s "checking whether compiler supports -Wimplicit-fallthrough... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wimplicit-fallthrough
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wimplicit-fallthrough
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether fallthrough attribute is compilable" >&5
+printf %s "checking whether fallthrough attribute is compilable... " >&6; }
+if test ${je_cv_fallthrough+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if !__has_attribute(fallthrough)
+               #error "foo"
+               #endif
+int
+main (void)
+{
+int x = 0;
+               switch (x) {
+               case 0: __attribute__((__fallthrough__));
+               case 1: return 1;
+               }
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_fallthrough=yes
+else $as_nop
+  je_cv_fallthrough=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_fallthrough" >&5
+printf "%s\n" "$je_cv_fallthrough" >&6; }
+
+CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+if test "x${je_cv_fallthrough}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_FALLTHROUGH  " >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wimplicit-fallthrough" >&5
+printf %s "checking whether compiler supports -Wimplicit-fallthrough... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Wimplicit-fallthrough
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Wimplicit-fallthrough
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Wimplicit-fallthrough" >&5
+printf %s "checking whether compiler supports -Wimplicit-fallthrough... " >&6; }
+T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
+T_APPEND_V=-Wimplicit-fallthrough
+  if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${SPECIFIED_CXXFLAGS}" = "x" ; then
+  CXXFLAGS="${CONFIGURE_CXXFLAGS}${SPECIFIED_CXXFLAGS}"
+else
+  CXXFLAGS="${CONFIGURE_CXXFLAGS} ${SPECIFIED_CXXFLAGS}"
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"
+then :
+  je_cv_cxxflags_added=-Wimplicit-fallthrough
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cxxflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${SPECIFIED_CXXFLAGS}" = "x" ; then
+  CXXFLAGS="${CONFIGURE_CXXFLAGS}${SPECIFIED_CXXFLAGS}"
+else
+  CXXFLAGS="${CONFIGURE_CXXFLAGS} ${SPECIFIED_CXXFLAGS}"
+fi
+
+
+fi
+
+SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-Werror
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-Werror
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+T_APPEND_V=-herror_on_warning
+  if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}${T_APPEND_V}"
+else
+  CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS} ${T_APPEND_V}"
+fi
+
+
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main (void)
+{
+
+    return 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  je_cv_cflags_added=-herror_on_warning
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  je_cv_cflags_added=
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+              CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether cold attribute is compilable" >&5
+printf %s "checking whether cold attribute is compilable... " >&6; }
+if test ${je_cv_cold+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+__attribute__((__cold__)) void foo();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_cold=yes
+else $as_nop
+  je_cv_cold=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_cold" >&5
+printf "%s\n" "$je_cv_cold" >&6; }
+
+CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
+if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
+  CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
+else
+  CFLAGS="${CONFIGURE_CFLAGS} ${SPECIFIED_CFLAGS}"
+fi
+
+
+if test "x${je_cv_cold}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_ATTR_COLD  " >>confdefs.h
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether vm_make_tag is compilable" >&5
+printf %s "checking whether vm_make_tag is compilable... " >&6; }
+if test ${je_cv_vm_make_tag+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/mman.h>
+	       #include <mach/vm_statistics.h>
+int
+main (void)
+{
+void *p;
+	       p = mmap(0, 16, PROT_READ, MAP_ANON|MAP_PRIVATE, VM_MAKE_TAG(1), 0);
+	       munmap(p, 16);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_vm_make_tag=yes
+else $as_nop
+  je_cv_vm_make_tag=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_vm_make_tag" >&5
+printf "%s\n" "$je_cv_vm_make_tag" >&6; }
+
+if test "x${je_cv_vm_make_tag}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_VM_MAKE_TAG  " >>confdefs.h
 
 fi
 
 
 # Check whether --with-rpath was given.
-if test "${with_rpath+set}" = set; then :
+if test ${with_rpath+y}
+then :
   withval=$with_rpath; if test "x$with_rpath" = "xno" ; then
   RPATH_EXTRA=
 else
   RPATH_EXTRA="`echo $with_rpath | tr \":\" \" \"`"
 fi
-else
+else $as_nop
   RPATH_EXTRA=
 
 fi
@@ -8765,21 +10742,23 @@ fi
 
 
 # Check whether --enable-autogen was given.
-if test "${enable_autogen+set}" = set; then :
+if test ${enable_autogen+y}
+then :
   enableval=$enable_autogen; if test "x$enable_autogen" = "xno" ; then
   enable_autogen="0"
 else
   enable_autogen="1"
 fi
 
-else
+else $as_nop
   enable_autogen="0"
 
 fi
 
 
 
-# Find a good install program.  We prefer a C program (faster),
+
+  # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
 # incompatible versions:
 # SysV /etc/install, /usr/sbin/install
@@ -8793,20 +10772,25 @@ fi
 # OS/2's system install, which has a completely different semantic
 # ./install, which can be erroneously created by make from ./install.sh.
 # Reject install programs that cannot install multiple files.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
-$as_echo_n "checking for a BSD-compatible install... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+printf %s "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if ${ac_cv_path_install+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+if test ${ac_cv_path_install+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in #((
-  ./ | .// | /[cC]/* | \
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    # Account for fact that we put trailing slashes in our PATH walk.
+case $as_dir in #((
+  ./ | /[cC]/* | \
   /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
   ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
   /usr/ucb/* ) ;;
@@ -8816,13 +10800,13 @@ case $as_dir/ in #((
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
-	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then
 	  if test $ac_prog = install &&
-	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # AIX install.  It has an incompatible calling convention.
 	    :
 	  elif test $ac_prog = install &&
-	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    grep pwplus "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # program-specific install script used by HP pwplus--don't use.
 	    :
 	  else
@@ -8830,12 +10814,12 @@ case $as_dir/ in #((
 	    echo one > conftest.one
 	    echo two > conftest.two
 	    mkdir conftest.dir
-	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	    if "$as_dir$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir/" &&
 	      test -s conftest.one && test -s conftest.two &&
 	      test -s conftest.dir/conftest.one &&
 	      test -s conftest.dir/conftest.two
 	    then
-	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      ac_cv_path_install="$as_dir$ac_prog$ac_exec_ext -c"
 	      break 3
 	    fi
 	  fi
@@ -8851,7 +10835,7 @@ IFS=$as_save_IFS
 rm -rf conftest.one conftest.two conftest.dir
 
 fi
-  if test "${ac_cv_path_install+set}" = set; then
+  if test ${ac_cv_path_install+y}; then
     INSTALL=$ac_cv_path_install
   else
     # As a last resort, use the slow shell script.  Don't cache a
@@ -8861,8 +10845,8 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
-$as_echo "$INSTALL" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+printf "%s\n" "$INSTALL" >&6; }
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 # It thinks the first close brace ends the variable substitution.
@@ -8875,11 +10859,12 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_RANLIB+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
@@ -8887,11 +10872,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -8902,11 +10891,11 @@ fi
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+printf "%s\n" "$RANLIB" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -8915,11 +10904,12 @@ if test -z "$ac_cv_prog_RANLIB"; then
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
@@ -8927,11 +10917,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -8942,11 +10936,11 @@ fi
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+printf "%s\n" "$ac_ct_RANLIB" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_RANLIB" = x; then
@@ -8954,8 +10948,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     RANLIB=$ac_ct_RANLIB
@@ -8966,11 +10960,12 @@ fi
 
 # Extract the first word of "ld", so it can be a program name with args.
 set dummy ld; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_LD+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_LD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   case $LD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_LD="$LD" # Let the user override the test with a path.
@@ -8980,11 +10975,15 @@ else
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_LD="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_LD="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -8997,21 +10996,22 @@ esac
 fi
 LD=$ac_cv_path_LD
 if test -n "$LD"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+printf "%s\n" "$LD" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
 # Extract the first word of "autoconf", so it can be a program name with args.
 set dummy autoconf; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_AUTOCONF+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_AUTOCONF+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   case $AUTOCONF in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_AUTOCONF="$AUTOCONF" # Let the user override the test with a path.
@@ -9021,11 +11021,15 @@ else
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_AUTOCONF="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_AUTOCONF="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -9038,24 +11042,25 @@ esac
 fi
 AUTOCONF=$ac_cv_path_AUTOCONF
 if test -n "$AUTOCONF"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5
-$as_echo "$AUTOCONF" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5
+printf "%s\n" "$AUTOCONF" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
 
 # Check whether --enable-doc was given.
-if test "${enable_doc+set}" = set; then :
+if test ${enable_doc+y}
+then :
   enableval=$enable_doc; if test "x$enable_doc" = "xno" ; then
   enable_doc="0"
 else
   enable_doc="1"
 fi
 
-else
+else $as_nop
   enable_doc="1"
 
 fi
@@ -9063,14 +11068,15 @@ fi
 
 
 # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then :
+if test ${enable_shared+y}
+then :
   enableval=$enable_shared; if test "x$enable_shared" = "xno" ; then
   enable_shared="0"
 else
   enable_shared="1"
 fi
 
-else
+else $as_nop
   enable_shared="1"
 
 fi
@@ -9078,14 +11084,15 @@ fi
 
 
 # Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then :
+if test ${enable_static+y}
+then :
   enableval=$enable_static; if test "x$enable_static" = "xno" ; then
   enable_static="0"
 else
   enable_static="1"
 fi
 
-else
+else $as_nop
   enable_static="1"
 
 fi
@@ -9098,18 +11105,20 @@ fi
 
 
 # Check whether --with-mangling was given.
-if test "${with_mangling+set}" = set; then :
+if test ${with_mangling+y}
+then :
   withval=$with_mangling; mangling_map="$with_mangling"
-else
+else $as_nop
   mangling_map=""
 fi
 
 
 
 # Check whether --with-jemalloc_prefix was given.
-if test "${with_jemalloc_prefix+set}" = set; then :
+if test ${with_jemalloc_prefix+y}
+then :
   withval=$with_jemalloc_prefix; JEMALLOC_PREFIX="$with_jemalloc_prefix"
-else
+else $as_nop
   if test "x$abi" != "xmacho" -a "x$abi" != "xpecoff"; then
   JEMALLOC_PREFIX=""
 else
@@ -9119,17 +11128,16 @@ fi
 fi
 
 if test "x$JEMALLOC_PREFIX" = "x" ; then
-  $as_echo "#define JEMALLOC_IS_MALLOC 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_IS_MALLOC  " >>confdefs.h
 
 else
   JEMALLOC_CPREFIX=`echo ${JEMALLOC_PREFIX} | tr "a-z" "A-Z"`
-  cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_PREFIX "$JEMALLOC_PREFIX"
-_ACEOF
 
-  cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_CPREFIX "$JEMALLOC_CPREFIX"
-_ACEOF
+printf "%s\n" "#define JEMALLOC_PREFIX \"$JEMALLOC_PREFIX\"" >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_CPREFIX \"$JEMALLOC_CPREFIX\"" >>confdefs.h
 
 fi
 
@@ -9137,78 +11145,107 @@ fi
 
 
 # Check whether --with-export was given.
-if test "${with_export+set}" = set; then :
+if test ${with_export+y}
+then :
   withval=$with_export; if test "x$with_export" = "xno"; then
-  $as_echo "#define JEMALLOC_EXPORT /**/" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_EXPORT /**/" >>confdefs.h
 
 fi
 
 fi
 
 
-public_syms="aligned_alloc calloc dallocx free mallctl mallctlbymib mallctlnametomib malloc malloc_conf malloc_message malloc_stats_print malloc_usable_size mallocx smallocx_${jemalloc_version_gid} nallocx posix_memalign rallocx realloc sallocx sdallocx xallocx"
+public_syms="aligned_alloc calloc dallocx free mallctl mallctlbymib mallctlnametomib malloc malloc_conf malloc_conf_2_conf_harder malloc_message malloc_stats_print malloc_usable_size mallocx smallocx_${jemalloc_version_gid} nallocx posix_memalign rallocx realloc sallocx sdallocx xallocx"
 ac_fn_c_check_func "$LINENO" "memalign" "ac_cv_func_memalign"
-if test "x$ac_cv_func_memalign" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE_MEMALIGN  " >>confdefs.h
+if test "x$ac_cv_func_memalign" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE_MEMALIGN  " >>confdefs.h
 
 	       public_syms="${public_syms} memalign"
 fi
 
 ac_fn_c_check_func "$LINENO" "valloc" "ac_cv_func_valloc"
-if test "x$ac_cv_func_valloc" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE_VALLOC  " >>confdefs.h
+if test "x$ac_cv_func_valloc" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE_VALLOC  " >>confdefs.h
 
 	       public_syms="${public_syms} valloc"
 fi
 
+ac_fn_c_check_func "$LINENO" "malloc_size" "ac_cv_func_malloc_size"
+if test "x$ac_cv_func_malloc_size" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_HAVE_MALLOC_SIZE  " >>confdefs.h
+
+	       public_syms="${public_syms} malloc_size"
+fi
+
 
 wrap_syms=
 if test "x${JEMALLOC_PREFIX}" = "x" ; then
   ac_fn_c_check_func "$LINENO" "__libc_calloc" "ac_cv_func___libc_calloc"
-if test "x$ac_cv_func___libc_calloc" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_CALLOC  " >>confdefs.h
+if test "x$ac_cv_func___libc_calloc" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_CALLOC  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_calloc"
 fi
 
   ac_fn_c_check_func "$LINENO" "__libc_free" "ac_cv_func___libc_free"
-if test "x$ac_cv_func___libc_free" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_FREE  " >>confdefs.h
+if test "x$ac_cv_func___libc_free" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_FREE  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_free"
 fi
 
   ac_fn_c_check_func "$LINENO" "__libc_malloc" "ac_cv_func___libc_malloc"
-if test "x$ac_cv_func___libc_malloc" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_MALLOC  " >>confdefs.h
+if test "x$ac_cv_func___libc_malloc" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_MALLOC  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_malloc"
 fi
 
   ac_fn_c_check_func "$LINENO" "__libc_memalign" "ac_cv_func___libc_memalign"
-if test "x$ac_cv_func___libc_memalign" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_MEMALIGN  " >>confdefs.h
+if test "x$ac_cv_func___libc_memalign" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_MEMALIGN  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_memalign"
 fi
 
   ac_fn_c_check_func "$LINENO" "__libc_realloc" "ac_cv_func___libc_realloc"
-if test "x$ac_cv_func___libc_realloc" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_REALLOC  " >>confdefs.h
+if test "x$ac_cv_func___libc_realloc" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_REALLOC  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_realloc"
 fi
 
   ac_fn_c_check_func "$LINENO" "__libc_valloc" "ac_cv_func___libc_valloc"
-if test "x$ac_cv_func___libc_valloc" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___LIBC_VALLOC  " >>confdefs.h
+if test "x$ac_cv_func___libc_valloc" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___LIBC_VALLOC  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __libc_valloc"
 fi
 
   ac_fn_c_check_func "$LINENO" "__posix_memalign" "ac_cv_func___posix_memalign"
-if test "x$ac_cv_func___posix_memalign" = xyes; then :
-  $as_echo "#define JEMALLOC_OVERRIDE___POSIX_MEMALIGN  " >>confdefs.h
+if test "x$ac_cv_func___posix_memalign" = xyes
+then :
+
+printf "%s\n" "#define JEMALLOC_OVERRIDE___POSIX_MEMALIGN  " >>confdefs.h
 
 		 wrap_syms="${wrap_syms} __posix_memalign"
 fi
@@ -9225,25 +11262,29 @@ esac
 
 
 # Check whether --with-private_namespace was given.
-if test "${with_private_namespace+set}" = set; then :
+if test ${with_private_namespace+y}
+then :
   withval=$with_private_namespace; JEMALLOC_PRIVATE_NAMESPACE="${with_private_namespace}je_"
-else
+else $as_nop
   JEMALLOC_PRIVATE_NAMESPACE="je_"
 
 fi
 
-cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_PRIVATE_NAMESPACE $JEMALLOC_PRIVATE_NAMESPACE
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_PRIVATE_NAMESPACE $JEMALLOC_PRIVATE_NAMESPACE" >>confdefs.h
 
 private_namespace="$JEMALLOC_PRIVATE_NAMESPACE"
 
 
 
 # Check whether --with-install_suffix was given.
-if test "${with_install_suffix+set}" = set; then :
-  withval=$with_install_suffix; INSTALL_SUFFIX="$with_install_suffix"
-else
+if test ${with_install_suffix+y}
+then :
+  withval=$with_install_suffix; case "$with_install_suffix" in
+   *\ * ) as_fn_error $? "Install suffix should not contain spaces" "$LINENO" 5 ;;
+   * ) INSTALL_SUFFIX="$with_install_suffix" ;;
+esac
+else $as_nop
   INSTALL_SUFFIX=
 
 fi
@@ -9253,17 +11294,17 @@ install_suffix="$INSTALL_SUFFIX"
 
 
 # Check whether --with-malloc_conf was given.
-if test "${with_malloc_conf+set}" = set; then :
+if test ${with_malloc_conf+y}
+then :
   withval=$with_malloc_conf; JEMALLOC_CONFIG_MALLOC_CONF="$with_malloc_conf"
-else
+else $as_nop
   JEMALLOC_CONFIG_MALLOC_CONF=""
 
 fi
 
 config_malloc_conf="$JEMALLOC_CONFIG_MALLOC_CONF"
-cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_CONFIG_MALLOC_CONF "$config_malloc_conf"
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_CONFIG_MALLOC_CONF \"$config_malloc_conf\"" >>confdefs.h
 
 
 je_="je_"
@@ -9336,24 +11377,22 @@ cfghdrs_tup="${cfghdrs_tup} test/include/test/jemalloc_test_defs.h:test/include/
 
 
 # Check whether --enable-debug was given.
-if test "${enable_debug+set}" = set; then :
+if test ${enable_debug+y}
+then :
   enableval=$enable_debug; if test "x$enable_debug" = "xno" ; then
   enable_debug="0"
 else
   enable_debug="1"
 fi
 
-else
+else $as_nop
   enable_debug="0"
 
 fi
 
 if test "x$enable_debug" = "x1" ; then
-  $as_echo "#define JEMALLOC_DEBUG  " >>confdefs.h
 
-fi
-if test "x$enable_debug" = "x1" ; then
-  $as_echo "#define JEMALLOC_DEBUG  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_DEBUG  " >>confdefs.h
 
 fi
 
@@ -9361,8 +11400,8 @@ fi
 if test "x$enable_debug" = "x0" ; then
   if test "x$GCC" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
-$as_echo_n "checking whether compiler supports -O3... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
+printf %s "checking whether compiler supports -O3... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-O3
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9383,7 +11422,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9392,18 +11431,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-O3
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -9412,8 +11452,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
-$as_echo_n "checking whether compiler supports -O3... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O3" >&5
+printf %s "checking whether compiler supports -O3... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-O3
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9440,7 +11480,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9449,18 +11489,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-O3
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -9475,8 +11516,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -funroll-loops" >&5
-$as_echo_n "checking whether compiler supports -funroll-loops... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -funroll-loops" >&5
+printf %s "checking whether compiler supports -funroll-loops... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-funroll-loops
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9497,7 +11538,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9506,18 +11547,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-funroll-loops
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -9527,8 +11569,8 @@ fi
 
   elif test "x$je_cv_msvc" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O2" >&5
-$as_echo_n "checking whether compiler supports -O2... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O2" >&5
+printf %s "checking whether compiler supports -O2... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-O2
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9549,7 +11591,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9558,18 +11600,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-O2
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -9578,8 +11621,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O2" >&5
-$as_echo_n "checking whether compiler supports -O2... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O2" >&5
+printf %s "checking whether compiler supports -O2... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-O2
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9606,7 +11649,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9615,18 +11658,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-O2
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -9642,8 +11686,8 @@ fi
 
   else
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O" >&5
-$as_echo_n "checking whether compiler supports -O... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O" >&5
+printf %s "checking whether compiler supports -O... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-O
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9664,7 +11708,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9673,18 +11717,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-O
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -9693,8 +11738,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O" >&5
-$as_echo_n "checking whether compiler supports -O... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -O" >&5
+printf %s "checking whether compiler supports -O... " >&6; }
 T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
 T_APPEND_V=-O
   if test "x${CONFIGURE_CXXFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -9721,7 +11766,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -9730,18 +11775,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"
+then :
   je_cv_cxxflags_added=-O
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cxxflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -9759,52 +11805,57 @@ fi
 fi
 
 # Check whether --enable-stats was given.
-if test "${enable_stats+set}" = set; then :
+if test ${enable_stats+y}
+then :
   enableval=$enable_stats; if test "x$enable_stats" = "xno" ; then
   enable_stats="0"
 else
   enable_stats="1"
 fi
 
-else
+else $as_nop
   enable_stats="1"
 
 fi
 
 if test "x$enable_stats" = "x1" ; then
-  $as_echo "#define JEMALLOC_STATS  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_STATS  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-experimental_smallocx was given.
-if test "${enable_experimental_smallocx+set}" = set; then :
+if test ${enable_experimental_smallocx+y}
+then :
   enableval=$enable_experimental_smallocx; if test "x$enable_experimental_smallocx" = "xno" ; then
 enable_experimental_smallocx="0"
 else
 enable_experimental_smallocx="1"
 fi
 
-else
+else $as_nop
   enable_experimental_smallocx="0"
 
 fi
 
 if test "x$enable_experimental_smallocx" = "x1" ; then
-  $as_echo "#define JEMALLOC_EXPERIMENTAL_SMALLOCX_API 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_EXPERIMENTAL_SMALLOCX_API  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-prof was given.
-if test "${enable_prof+set}" = set; then :
+if test ${enable_prof+y}
+then :
   enableval=$enable_prof; if test "x$enable_prof" = "xno" ; then
   enable_prof="0"
 else
   enable_prof="1"
 fi
 
-else
+else $as_nop
   enable_prof="0"
 
 fi
@@ -9816,21 +11867,26 @@ else
 fi
 
 # Check whether --enable-prof-libunwind was given.
-if test "${enable_prof_libunwind+set}" = set; then :
+if test ${enable_prof_libunwind+y}
+then :
   enableval=$enable_prof_libunwind; if test "x$enable_prof_libunwind" = "xno" ; then
   enable_prof_libunwind="0"
 else
   enable_prof_libunwind="1"
+  if test "x$enable_prof" = "x0" ; then
+    as_fn_error $? "--enable-prof-libunwind should only be used with --enable-prof" "$LINENO" 5
+  fi
 fi
 
-else
+else $as_nop
   enable_prof_libunwind="0"
 
 fi
 
 
 # Check whether --with-static_libunwind was given.
-if test "${with_static_libunwind+set}" = set; then :
+if test ${with_static_libunwind+y}
+then :
   withval=$with_static_libunwind; if test "x$with_static_libunwind" = "xno" ; then
   LUNWIND="-lunwind"
 else
@@ -9839,32 +11895,31 @@ else
   fi
   LUNWIND="$with_static_libunwind"
 fi
-else
+else $as_nop
   LUNWIND="-lunwind"
 
 fi
 
 if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then
-  for ac_header in libunwind.h
+         for ac_header in libunwind.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
-if test "x$ac_cv_header_libunwind_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBUNWIND_H 1
-_ACEOF
+  ac_fn_c_check_header_compile "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
+if test "x$ac_cv_header_libunwind_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBUNWIND_H 1" >>confdefs.h
 
-else
+else $as_nop
   enable_prof_libunwind="0"
 fi
 
 done
-
   if test "x$LUNWIND" = "x-lunwind" ; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for unw_backtrace in -lunwind" >&5
-$as_echo_n "checking for unw_backtrace in -lunwind... " >&6; }
-if ${ac_cv_lib_unwind_unw_backtrace+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for unw_backtrace in -lunwind" >&5
+printf %s "checking for unw_backtrace in -lunwind... " >&6; }
+if test ${ac_cv_lib_unwind_unw_backtrace+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lunwind  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9873,30 +11928,29 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char unw_backtrace ();
 int
-main ()
+main (void)
 {
 return unw_backtrace ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_unwind_unw_backtrace=yes
-else
+else $as_nop
   ac_cv_lib_unwind_unw_backtrace=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_unw_backtrace" >&5
-$as_echo "$ac_cv_lib_unwind_unw_backtrace" >&6; }
-if test "x$ac_cv_lib_unwind_unw_backtrace" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_unw_backtrace" >&5
+printf "%s\n" "$ac_cv_lib_unwind_unw_backtrace" >&6; }
+if test "x$ac_cv_lib_unwind_unw_backtrace" = xyes
+then :
   T_APPEND_V=$LUNWIND
   if test "x${LIBS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   LIBS="${LIBS}${T_APPEND_V}"
@@ -9905,7 +11959,7 @@ else
 fi
 
 
-else
+else $as_nop
   enable_prof_libunwind="0"
 fi
 
@@ -9921,46 +11975,47 @@ fi
   fi
   if test "x${enable_prof_libunwind}" = "x1" ; then
     backtrace_method="libunwind"
-    $as_echo "#define JEMALLOC_PROF_LIBUNWIND  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PROF_LIBUNWIND  " >>confdefs.h
 
   fi
 fi
 
 # Check whether --enable-prof-libgcc was given.
-if test "${enable_prof_libgcc+set}" = set; then :
+if test ${enable_prof_libgcc+y}
+then :
   enableval=$enable_prof_libgcc; if test "x$enable_prof_libgcc" = "xno" ; then
   enable_prof_libgcc="0"
 else
   enable_prof_libgcc="1"
 fi
 
-else
+else $as_nop
   enable_prof_libgcc="1"
 
 fi
 
 if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \
      -a "x$GCC" = "xyes" ; then
-  for ac_header in unwind.h
+         for ac_header in unwind.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default"
-if test "x$ac_cv_header_unwind_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_UNWIND_H 1
-_ACEOF
+  ac_fn_c_check_header_compile "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default"
+if test "x$ac_cv_header_unwind_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UNWIND_H 1" >>confdefs.h
 
-else
+else $as_nop
   enable_prof_libgcc="0"
 fi
 
 done
-
   if test "x${enable_prof_libgcc}" = "x1" ; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _Unwind_Backtrace in -lgcc" >&5
-$as_echo_n "checking for _Unwind_Backtrace in -lgcc... " >&6; }
-if ${ac_cv_lib_gcc__Unwind_Backtrace+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _Unwind_Backtrace in -lgcc" >&5
+printf %s "checking for _Unwind_Backtrace in -lgcc... " >&6; }
+if test ${ac_cv_lib_gcc__Unwind_Backtrace+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lgcc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9969,30 +12024,29 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char _Unwind_Backtrace ();
 int
-main ()
+main (void)
 {
 return _Unwind_Backtrace ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_gcc__Unwind_Backtrace=yes
-else
+else $as_nop
   ac_cv_lib_gcc__Unwind_Backtrace=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gcc__Unwind_Backtrace" >&5
-$as_echo "$ac_cv_lib_gcc__Unwind_Backtrace" >&6; }
-if test "x$ac_cv_lib_gcc__Unwind_Backtrace" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gcc__Unwind_Backtrace" >&5
+printf "%s\n" "$ac_cv_lib_gcc__Unwind_Backtrace" >&6; }
+if test "x$ac_cv_lib_gcc__Unwind_Backtrace" = xyes
+then :
   T_APPEND_V=-lgcc
   if test "x${LIBS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   LIBS="${LIBS}${T_APPEND_V}"
@@ -10001,14 +12055,15 @@ else
 fi
 
 
-else
+else $as_nop
   enable_prof_libgcc="0"
 fi
 
   fi
   if test "x${enable_prof_libgcc}" = "x1" ; then
     backtrace_method="libgcc"
-    $as_echo "#define JEMALLOC_PROF_LIBGCC  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PROF_LIBGCC  " >>confdefs.h
 
   fi
 else
@@ -10016,14 +12071,15 @@ else
 fi
 
 # Check whether --enable-prof-gcc was given.
-if test "${enable_prof_gcc+set}" = set; then :
+if test ${enable_prof_gcc+y}
+then :
   enableval=$enable_prof_gcc; if test "x$enable_prof_gcc" = "xno" ; then
   enable_prof_gcc="0"
 else
   enable_prof_gcc="1"
 fi
 
-else
+else $as_nop
   enable_prof_gcc="1"
 
 fi
@@ -10031,8 +12087,8 @@ fi
 if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \
      -a "x$GCC" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fno-omit-frame-pointer" >&5
-$as_echo_n "checking whether compiler supports -fno-omit-frame-pointer... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -fno-omit-frame-pointer" >&5
+printf %s "checking whether compiler supports -fno-omit-frame-pointer... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-fno-omit-frame-pointer
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -10053,7 +12109,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -10062,18 +12118,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-fno-omit-frame-pointer
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -10082,7 +12139,8 @@ fi
 
 
   backtrace_method="gcc intrinsics"
-  $as_echo "#define JEMALLOC_PROF_GCC  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PROF_GCC  " >>confdefs.h
 
 else
   enable_prof_gcc="0"
@@ -10092,10 +12150,10 @@ if test "x$backtrace_method" = "x" ; then
   backtrace_method="none (disabling profiling)"
   enable_prof="0"
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking configured backtracing method" >&5
-$as_echo_n "checking configured backtracing method... " >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $backtrace_method" >&5
-$as_echo "$backtrace_method" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking configured backtracing method" >&5
+printf %s "checking configured backtracing method... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $backtrace_method" >&5
+printf "%s\n" "$backtrace_method" >&6; }
 if test "x$enable_prof" = "x1" ; then
     T_APPEND_V=$LM
   if test "x${LIBS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -10106,33 +12164,43 @@ fi
 
 
 
-  $as_echo "#define JEMALLOC_PROF  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PROF  " >>confdefs.h
 
 fi
 
 
 if test "x${maps_coalesce}" = "x1" ; then
-  $as_echo "#define JEMALLOC_MAPS_COALESCE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_MAPS_COALESCE  " >>confdefs.h
 
 fi
 
 if test "x$default_retain" = "x1" ; then
-  $as_echo "#define JEMALLOC_RETAIN  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_RETAIN  " >>confdefs.h
+
+fi
+
+if test "x$zero_realloc_default_free" = "x1" ; then
+
+printf "%s\n" "#define JEMALLOC_ZERO_REALLOC_DEFAULT_FREE  " >>confdefs.h
 
 fi
 
 have_dss="1"
 ac_fn_c_check_func "$LINENO" "sbrk" "ac_cv_func_sbrk"
-if test "x$ac_cv_func_sbrk" = xyes; then :
+if test "x$ac_cv_func_sbrk" = xyes
+then :
   have_sbrk="1"
-else
+else $as_nop
   have_sbrk="0"
 fi
 
 if test "x$have_sbrk" = "x1" ; then
   if test "x$sbrk_deprecated" = "x1" ; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling dss allocation because sbrk is deprecated" >&5
-$as_echo "Disabling dss allocation because sbrk is deprecated" >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Disabling dss allocation because sbrk is deprecated" >&5
+printf "%s\n" "Disabling dss allocation because sbrk is deprecated" >&6; }
     have_dss="0"
   fi
 else
@@ -10140,48 +12208,53 @@ else
 fi
 
 if test "x$have_dss" = "x1" ; then
-  $as_echo "#define JEMALLOC_DSS  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_DSS  " >>confdefs.h
 
 fi
 
 # Check whether --enable-fill was given.
-if test "${enable_fill+set}" = set; then :
+if test ${enable_fill+y}
+then :
   enableval=$enable_fill; if test "x$enable_fill" = "xno" ; then
   enable_fill="0"
 else
   enable_fill="1"
 fi
 
-else
+else $as_nop
   enable_fill="1"
 
 fi
 
 if test "x$enable_fill" = "x1" ; then
-  $as_echo "#define JEMALLOC_FILL  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_FILL  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-utrace was given.
-if test "${enable_utrace+set}" = set; then :
+if test ${enable_utrace+y}
+then :
   enableval=$enable_utrace; if test "x$enable_utrace" = "xno" ; then
   enable_utrace="0"
 else
   enable_utrace="1"
 fi
 
-else
+else $as_nop
   enable_utrace="0"
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether utrace(2) is compilable" >&5
-$as_echo_n "checking whether utrace(2) is compilable... " >&6; }
-if ${je_cv_utrace+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether utrace(2) is compilable" >&5
+printf %s "checking whether utrace(2) is compilable... " >&6; }
+if test ${je_cv_utrace+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10192,7 +12265,7 @@ else
 #include <sys/ktrace.h>
 
 int
-main ()
+main (void)
 {
 
 	utrace((void *)0, 0);
@@ -10201,127 +12274,227 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_utrace=yes
-else
+else $as_nop
   je_cv_utrace=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_utrace" >&5
-$as_echo "$je_cv_utrace" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_utrace" >&5
+printf "%s\n" "$je_cv_utrace" >&6; }
 
 if test "x${je_cv_utrace}" = "xno" ; then
-  enable_utrace="0"
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether utrace(2) with label is compilable" >&5
+printf %s "checking whether utrace(2) with label is compilable... " >&6; }
+if test ${je_cv_utrace_label+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include <sys/types.h>
+  #include <sys/param.h>
+  #include <sys/time.h>
+  #include <sys/uio.h>
+  #include <sys/ktrace.h>
+
+int
+main (void)
+{
+
+	  utrace((void *)0, (void *)0, 0);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_utrace_label=yes
+else $as_nop
+  je_cv_utrace_label=no
 fi
-if test "x$enable_utrace" = "x1" ; then
-  $as_echo "#define JEMALLOC_UTRACE  " >>confdefs.h
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_utrace_label" >&5
+printf "%s\n" "$je_cv_utrace_label" >&6; }
+
+  if test "x${je_cv_utrace_label}" = "xno"; then
+    enable_utrace="0"
+  fi
+  if test "x$enable_utrace" = "x1" ; then
+
+printf "%s\n" "#define JEMALLOC_UTRACE_LABEL  " >>confdefs.h
+
+  fi
+else
+  if test "x$enable_utrace" = "x1" ; then
+
+printf "%s\n" "#define JEMALLOC_UTRACE  " >>confdefs.h
 
+  fi
 fi
 
 
 # Check whether --enable-xmalloc was given.
-if test "${enable_xmalloc+set}" = set; then :
+if test ${enable_xmalloc+y}
+then :
   enableval=$enable_xmalloc; if test "x$enable_xmalloc" = "xno" ; then
   enable_xmalloc="0"
 else
   enable_xmalloc="1"
 fi
 
-else
+else $as_nop
   enable_xmalloc="0"
 
 fi
 
 if test "x$enable_xmalloc" = "x1" ; then
-  $as_echo "#define JEMALLOC_XMALLOC  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_XMALLOC  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-cache-oblivious was given.
-if test "${enable_cache_oblivious+set}" = set; then :
+if test ${enable_cache_oblivious+y}
+then :
   enableval=$enable_cache_oblivious; if test "x$enable_cache_oblivious" = "xno" ; then
   enable_cache_oblivious="0"
 else
   enable_cache_oblivious="1"
 fi
 
-else
+else $as_nop
   enable_cache_oblivious="1"
 
 fi
 
 if test "x$enable_cache_oblivious" = "x1" ; then
-  $as_echo "#define JEMALLOC_CACHE_OBLIVIOUS  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_CACHE_OBLIVIOUS  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-log was given.
-if test "${enable_log+set}" = set; then :
+if test ${enable_log+y}
+then :
   enableval=$enable_log; if test "x$enable_log" = "xno" ; then
   enable_log="0"
 else
   enable_log="1"
 fi
 
-else
+else $as_nop
   enable_log="0"
 
 fi
 
 if test "x$enable_log" = "x1" ; then
-  $as_echo "#define JEMALLOC_LOG  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_LOG  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-readlinkat was given.
-if test "${enable_readlinkat+set}" = set; then :
+if test ${enable_readlinkat+y}
+then :
   enableval=$enable_readlinkat; if test "x$enable_readlinkat" = "xno" ; then
   enable_readlinkat="0"
 else
   enable_readlinkat="1"
 fi
 
-else
+else $as_nop
   enable_readlinkat="0"
 
 fi
 
 if test "x$enable_readlinkat" = "x1" ; then
-  $as_echo "#define JEMALLOC_READLINKAT  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_READLINKAT  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-opt-safety-checks was given.
-if test "${enable_opt_safety_checks+set}" = set; then :
+if test ${enable_opt_safety_checks+y}
+then :
   enableval=$enable_opt_safety_checks; if test "x$enable_opt_safety_checks" = "xno" ; then
   enable_opt_safety_checks="0"
 else
   enable_opt_safety_checks="1"
 fi
 
-else
+else $as_nop
   enable_opt_safety_checks="0"
 
 fi
 
 if test "x$enable_opt_safety_checks" = "x1" ; then
-  $as_echo "#define JEMALLOC_OPT_SAFETY_CHECKS  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_OPT_SAFETY_CHECKS  " >>confdefs.h
+
+fi
+
+
+# Check whether --enable-opt-size-checks was given.
+if test ${enable_opt_size_checks+y}
+then :
+  enableval=$enable_opt_size_checks; if test "x$enable_opt_size_checks" = "xno" ; then
+  enable_opt_size_checks="0"
+else
+  enable_opt_size_checks="1"
+fi
+
+else $as_nop
+  enable_opt_size_checks="0"
 
 fi
 
+if test "x$enable_opt_size_checks" = "x1" ; then
+
+printf "%s\n" "#define JEMALLOC_OPT_SIZE_CHECKS  " >>confdefs.h
 
+fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_unreachable is compilable" >&5
-$as_echo_n "checking whether a program using __builtin_unreachable is compilable... " >&6; }
-if ${je_cv_gcc_builtin_unreachable+:} false; then :
-  $as_echo_n "(cached) " >&6
+
+# Check whether --enable-uaf-detection was given.
+if test ${enable_uaf_detection+y}
+then :
+  enableval=$enable_uaf_detection; if test "x$enable_uaf_detection" = "xno" ; then
+  enable_uaf_detection="0"
 else
+  enable_uaf_detection="1"
+fi
+
+else $as_nop
+  enable_uaf_detection="0"
+
+fi
+
+if test "x$enable_uaf_detection" = "x1" ; then
+  printf "%s\n" "#define JEMALLOC_UAF_DETECTION  " >>confdefs.h
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_unreachable is compilable" >&5
+printf %s "checking whether a program using __builtin_unreachable is compilable... " >&6; }
+if test ${je_cv_gcc_builtin_unreachable+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10330,7 +12503,7 @@ void foo (void) {
 }
 
 int
-main ()
+main (void)
 {
 
 	{
@@ -10341,31 +12514,35 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_builtin_unreachable=yes
-else
+else $as_nop
   je_cv_gcc_builtin_unreachable=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_unreachable" >&5
-$as_echo "$je_cv_gcc_builtin_unreachable" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_unreachable" >&5
+printf "%s\n" "$je_cv_gcc_builtin_unreachable" >&6; }
 
 if test "x${je_cv_gcc_builtin_unreachable}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_INTERNAL_UNREACHABLE __builtin_unreachable" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_UNREACHABLE __builtin_unreachable" >>confdefs.h
 
 else
-  $as_echo "#define JEMALLOC_INTERNAL_UNREACHABLE abort" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_UNREACHABLE abort" >>confdefs.h
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_ffsl is compilable" >&5
-$as_echo_n "checking whether a program using __builtin_ffsl is compilable... " >&6; }
-if ${je_cv_gcc_builtin_ffsl+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_ffsl is compilable" >&5
+printf %s "checking whether a program using __builtin_ffsl is compilable... " >&6; }
+if test ${je_cv_gcc_builtin_ffsl+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10374,7 +12551,7 @@ else
 #include <string.h>
 
 int
-main ()
+main (void)
 {
 
 	{
@@ -10386,31 +12563,36 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_builtin_ffsl=yes
-else
+else $as_nop
   je_cv_gcc_builtin_ffsl=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_ffsl" >&5
-$as_echo "$je_cv_gcc_builtin_ffsl" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_ffsl" >&5
+printf "%s\n" "$je_cv_gcc_builtin_ffsl" >&6; }
 
 if test "x${je_cv_gcc_builtin_ffsl}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_INTERNAL_FFSLL __builtin_ffsll" >>confdefs.h
 
-  $as_echo "#define JEMALLOC_INTERNAL_FFSL __builtin_ffsl" >>confdefs.h
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFSLL __builtin_ffsll" >>confdefs.h
 
-  $as_echo "#define JEMALLOC_INTERNAL_FFS __builtin_ffs" >>confdefs.h
 
-else
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFSL __builtin_ffsl" >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFS __builtin_ffs" >>confdefs.h
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program using ffsl is compilable" >&5
-$as_echo_n "checking whether a program using ffsl is compilable... " >&6; }
-if ${je_cv_function_ffsl+:} false; then :
-  $as_echo_n "(cached) " >&6
 else
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program using ffsl is compilable" >&5
+printf %s "checking whether a program using ffsl is compilable... " >&6; }
+if test ${je_cv_function_ffsl+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10419,7 +12601,7 @@ else
   #include <string.h>
 
 int
-main ()
+main (void)
 {
 
 	{
@@ -10431,23 +12613,27 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_function_ffsl=yes
-else
+else $as_nop
   je_cv_function_ffsl=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_function_ffsl" >&5
-$as_echo "$je_cv_function_ffsl" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_function_ffsl" >&5
+printf "%s\n" "$je_cv_function_ffsl" >&6; }
 
   if test "x${je_cv_function_ffsl}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_INTERNAL_FFSLL ffsll" >>confdefs.h
 
-    $as_echo "#define JEMALLOC_INTERNAL_FFSL ffsl" >>confdefs.h
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFSLL ffsll" >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFSL ffsl" >>confdefs.h
 
-    $as_echo "#define JEMALLOC_INTERNAL_FFS ffs" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_FFS ffs" >>confdefs.h
 
   else
     as_fn_error $? "Cannot build without ffsl(3) or __builtin_ffsl()" "$LINENO" 5
@@ -10455,11 +12641,12 @@ $as_echo "$je_cv_function_ffsl" >&6; }
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_popcountl is compilable" >&5
-$as_echo_n "checking whether a program using __builtin_popcountl is compilable... " >&6; }
-if ${je_cv_gcc_builtin_popcountl+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program using __builtin_popcountl is compilable" >&5
+printf %s "checking whether a program using __builtin_popcountl is compilable... " >&6; }
+if test ${je_cv_gcc_builtin_popcountl+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10468,7 +12655,7 @@ else
 #include <string.h>
 
 int
-main ()
+main (void)
 {
 
 	{
@@ -10480,56 +12667,85 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_builtin_popcountl=yes
-else
+else $as_nop
   je_cv_gcc_builtin_popcountl=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_popcountl" >&5
-$as_echo "$je_cv_gcc_builtin_popcountl" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_builtin_popcountl" >&5
+printf "%s\n" "$je_cv_gcc_builtin_popcountl" >&6; }
 
 if test "x${je_cv_gcc_builtin_popcountl}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_INTERNAL_POPCOUNT __builtin_popcount" >>confdefs.h
 
-  $as_echo "#define JEMALLOC_INTERNAL_POPCOUNTL __builtin_popcountl" >>confdefs.h
+printf "%s\n" "#define JEMALLOC_INTERNAL_POPCOUNT __builtin_popcount" >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_POPCOUNTL __builtin_popcountl" >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_INTERNAL_POPCOUNTLL __builtin_popcountll" >>confdefs.h
 
 fi
 
 
 # Check whether --with-lg_quantum was given.
-if test "${with_lg_quantum+set}" = set; then :
-  withval=$with_lg_quantum; LG_QUANTA="$with_lg_quantum"
-else
-  LG_QUANTA="3 4"
+if test ${with_lg_quantum+y}
+then :
+  withval=$with_lg_quantum;
 fi
 
 if test "x$with_lg_quantum" != "x" ; then
-  cat >>confdefs.h <<_ACEOF
-#define LG_QUANTUM $with_lg_quantum
-_ACEOF
+
+printf "%s\n" "#define LG_QUANTUM $with_lg_quantum" >>confdefs.h
+
+fi
+
+
+# Check whether --with-lg_slab_maxregs was given.
+if test ${with_lg_slab_maxregs+y}
+then :
+  withval=$with_lg_slab_maxregs; CONFIG_LG_SLAB_MAXREGS="with_lg_slab_maxregs"
+else $as_nop
+  CONFIG_LG_SLAB_MAXREGS=""
+fi
+
+if test "x$with_lg_slab_maxregs" != "x" ; then
+
+printf "%s\n" "#define CONFIG_LG_SLAB_MAXREGS $with_lg_slab_maxregs" >>confdefs.h
 
 fi
 
 
 # Check whether --with-lg_page was given.
-if test "${with_lg_page+set}" = set; then :
+if test ${with_lg_page+y}
+then :
   withval=$with_lg_page; LG_PAGE="$with_lg_page"
-else
+else $as_nop
   LG_PAGE="detect"
 fi
 
+case "${host}" in
+  aarch64-apple-darwin*)
+                  if test "x${host}" != "x${build}" -a "x$LG_PAGE" = "xdetect"; then
+        LG_PAGE=14
+      fi
+      ;;
+esac
 if test "x$LG_PAGE" = "xdetect"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking LG_PAGE" >&5
-$as_echo_n "checking LG_PAGE... " >&6; }
-if ${je_cv_lg_page+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking LG_PAGE" >&5
+printf %s "checking LG_PAGE... " >&6; }
+if test ${je_cv_lg_page+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test "$cross_compiling" = yes
+then :
   je_cv_lg_page=12
-else
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -10542,7 +12758,7 @@ else
 #include <stdio.h>
 
 int
-main ()
+main (void)
 {
 
     int result;
@@ -10573,9 +12789,10 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   je_cv_lg_page=`cat conftest.out`
-else
+else $as_nop
   je_cv_lg_page=undefined
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
@@ -10583,16 +12800,15 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 fi
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_lg_page" >&5
-$as_echo "$je_cv_lg_page" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_lg_page" >&5
+printf "%s\n" "$je_cv_lg_page" >&6; }
 fi
 if test "x${je_cv_lg_page}" != "x" ; then
   LG_PAGE="${je_cv_lg_page}"
 fi
 if test "x${LG_PAGE}" != "xundefined" ; then
-   cat >>confdefs.h <<_ACEOF
-#define LG_PAGE $LG_PAGE
-_ACEOF
+
+printf "%s\n" "#define LG_PAGE $LG_PAGE" >>confdefs.h
 
 else
    as_fn_error $? "cannot determine value for LG_PAGE" "$LINENO" 5
@@ -10600,9 +12816,10 @@ fi
 
 
 # Check whether --with-lg_hugepage was given.
-if test "${with_lg_hugepage+set}" = set; then :
+if test ${with_lg_hugepage+y}
+then :
   withval=$with_lg_hugepage; je_cv_lg_hugepage="${with_lg_hugepage}"
-else
+else $as_nop
   je_cv_lg_hugepage=""
 fi
 
@@ -10628,20 +12845,20 @@ if test "x${LG_PAGE}" != "xundefined" -a \
         "${je_cv_lg_hugepage}" -lt "${LG_PAGE}" ; then
   as_fn_error $? "Huge page size (2^${je_cv_lg_hugepage}) must be at least page size (2^${LG_PAGE})" "$LINENO" 5
 fi
-cat >>confdefs.h <<_ACEOF
-#define LG_HUGEPAGE ${je_cv_lg_hugepage}
-_ACEOF
+
+printf "%s\n" "#define LG_HUGEPAGE ${je_cv_lg_hugepage}" >>confdefs.h
 
 
 # Check whether --enable-libdl was given.
-if test "${enable_libdl+set}" = set; then :
+if test ${enable_libdl+y}
+then :
   enableval=$enable_libdl; if test "x$enable_libdl" = "xno" ; then
   enable_libdl="0"
 else
   enable_libdl="1"
 fi
 
-else
+else $as_nop
   enable_libdl="1"
 
 fi
@@ -10650,27 +12867,27 @@ fi
 
 
 if test "x$abi" != "xpecoff" ; then
-  $as_echo "#define JEMALLOC_HAVE_PTHREAD  " >>confdefs.h
 
-  for ac_header in pthread.h
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD  " >>confdefs.h
+
+         for ac_header in pthread.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
-if test "x$ac_cv_header_pthread_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_PTHREAD_H 1
-_ACEOF
+  ac_fn_c_check_header_compile "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+if test "x$ac_cv_header_pthread_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_PTHREAD_H 1" >>confdefs.h
 
-else
+else $as_nop
   as_fn_error $? "pthread.h is missing" "$LINENO" 5
 fi
 
 done
-
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
-$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
-if ${ac_cv_lib_pthread_pthread_create+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+printf %s "checking for pthread_create in -lpthread... " >&6; }
+if test ${ac_cv_lib_pthread_pthread_create+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lpthread  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10679,30 +12896,29 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char pthread_create ();
 int
-main ()
+main (void)
 {
 return pthread_create ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_pthread_pthread_create=yes
-else
+else $as_nop
   ac_cv_lib_pthread_pthread_create=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
-$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
-if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+printf "%s\n" "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes
+then :
   T_APPEND_V=-pthread
   if test "x${LIBS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
   LIBS="${LIBS}${T_APPEND_V}"
@@ -10711,12 +12927,13 @@ else
 fi
 
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
-$as_echo_n "checking for library containing pthread_create... " >&6; }
-if ${ac_cv_search_pthread_create+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
+printf %s "checking for library containing pthread_create... " >&6; }
+if test ${ac_cv_search_pthread_create+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -10724,49 +12941,51 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char pthread_create ();
 int
-main ()
+main (void)
 {
 return pthread_create ();
   ;
   return 0;
 }
 _ACEOF
-for ac_lib in '' ; do
+for ac_lib in ''
+do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_search_pthread_create=$ac_res
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext
-  if ${ac_cv_search_pthread_create+:} false; then :
+  if test ${ac_cv_search_pthread_create+y}
+then :
   break
 fi
 done
-if ${ac_cv_search_pthread_create+:} false; then :
+if test ${ac_cv_search_pthread_create+y}
+then :
 
-else
+else $as_nop
   ac_cv_search_pthread_create=no
 fi
 rm conftest.$ac_ext
 LIBS=$ac_func_search_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5
-$as_echo "$ac_cv_search_pthread_create" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5
+printf "%s\n" "$ac_cv_search_pthread_create" >&6; }
 ac_res=$ac_cv_search_pthread_create
-if test "$ac_res" != no; then :
+if test "$ac_res" != no
+then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
-else
+else $as_nop
   as_fn_error $? "libpthread is missing" "$LINENO" 5
 fi
 
@@ -10777,22 +12996,23 @@ fi
 
   if test "x$enable_libdl" = "x1" ; then
     have_dlsym="1"
-    for ac_header in dlfcn.h
+           for ac_header in dlfcn.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
-if test "x$ac_cv_header_dlfcn_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_DLFCN_H 1
-_ACEOF
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
+if test "x$ac_cv_header_dlfcn_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_DLFCN_H 1" >>confdefs.h
  ac_fn_c_check_func "$LINENO" "dlsym" "ac_cv_func_dlsym"
-if test "x$ac_cv_func_dlsym" = xyes; then :
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlsym in -ldl" >&5
-$as_echo_n "checking for dlsym in -ldl... " >&6; }
-if ${ac_cv_lib_dl_dlsym+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+if test "x$ac_cv_func_dlsym" = xyes
+then :
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlsym in -ldl" >&5
+printf %s "checking for dlsym in -ldl... " >&6; }
+if test ${ac_cv_lib_dl_dlsym+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -10801,45 +13021,44 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char dlsym ();
 int
-main ()
+main (void)
 {
 return dlsym ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_lib_dl_dlsym=yes
-else
+else $as_nop
   ac_cv_lib_dl_dlsym=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlsym" >&5
-$as_echo "$ac_cv_lib_dl_dlsym" >&6; }
-if test "x$ac_cv_lib_dl_dlsym" = xyes; then :
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlsym" >&5
+printf "%s\n" "$ac_cv_lib_dl_dlsym" >&6; }
+if test "x$ac_cv_lib_dl_dlsym" = xyes
+then :
   LIBS="$LIBS -ldl"
-else
+else $as_nop
   have_dlsym="0"
 fi
 
 fi
 
-else
+else $as_nop
   have_dlsym="0"
 fi
 
 done
-
     if test "x$have_dlsym" = "x1" ; then
-      $as_echo "#define JEMALLOC_HAVE_DLSYM  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_DLSYM  " >>confdefs.h
 
     fi
   else
@@ -10847,18 +13066,19 @@ done
   fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread_atfork(3) is compilable" >&5
-$as_echo_n "checking whether pthread_atfork(3) is compilable... " >&6; }
-if ${je_cv_pthread_atfork+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthread_atfork(3) is compilable" >&5
+printf %s "checking whether pthread_atfork(3) is compilable... " >&6; }
+if test ${je_cv_pthread_atfork+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <pthread.h>
 
 int
-main ()
+main (void)
 {
 
   pthread_atfork((void *)0, (void *)0, (void *)0);
@@ -10867,34 +13087,37 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_pthread_atfork=yes
-else
+else $as_nop
   je_cv_pthread_atfork=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_atfork" >&5
-$as_echo "$je_cv_pthread_atfork" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_atfork" >&5
+printf "%s\n" "$je_cv_pthread_atfork" >&6; }
 
   if test "x${je_cv_pthread_atfork}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_HAVE_PTHREAD_ATFORK  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD_ATFORK  " >>confdefs.h
 
   fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread_setname_np(3) is compilable" >&5
-$as_echo_n "checking whether pthread_setname_np(3) is compilable... " >&6; }
-if ${je_cv_pthread_setname_np+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthread_setname_np(3) is compilable" >&5
+printf %s "checking whether pthread_setname_np(3) is compilable... " >&6; }
+if test ${je_cv_pthread_setname_np+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <pthread.h>
 
 int
-main ()
+main (void)
 {
 
   pthread_setname_np(pthread_self(), "setname_test");
@@ -10903,19 +13126,110 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_pthread_setname_np=yes
-else
+else $as_nop
   je_cv_pthread_setname_np=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_setname_np" >&5
-$as_echo "$je_cv_pthread_setname_np" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_setname_np" >&5
+printf "%s\n" "$je_cv_pthread_setname_np" >&6; }
 
   if test "x${je_cv_pthread_setname_np}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_HAVE_PTHREAD_SETNAME_NP  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD_SETNAME_NP  " >>confdefs.h
+
+  fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthread_getname_np(3) is compilable" >&5
+printf %s "checking whether pthread_getname_np(3) is compilable... " >&6; }
+if test ${je_cv_pthread_getname_np+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <pthread.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+
+  {
+  	char *name = malloc(16);
+  	pthread_getname_np(pthread_self(), name, 16);
+	free(name);
+  }
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_pthread_getname_np=yes
+else $as_nop
+  je_cv_pthread_getname_np=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_getname_np" >&5
+printf "%s\n" "$je_cv_pthread_getname_np" >&6; }
+
+  if test "x${je_cv_pthread_getname_np}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD_GETNAME_NP  " >>confdefs.h
+
+  fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthread_get_name_np(3) is compilable" >&5
+printf %s "checking whether pthread_get_name_np(3) is compilable... " >&6; }
+if test ${je_cv_pthread_get_name_np+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <pthread.h>
+#include <pthread_np.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+
+  {
+  	char *name = malloc(16);
+  	pthread_get_name_np(pthread_self(), name, 16);
+	free(name);
+  }
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_pthread_get_name_np=yes
+else $as_nop
+  je_cv_pthread_get_name_np=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_get_name_np" >&5
+printf "%s\n" "$je_cv_pthread_get_name_np" >&6; }
+
+  if test "x${je_cv_pthread_get_name_np}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD_GET_NAME_NP  " >>confdefs.h
 
   fi
 fi
@@ -10929,11 +13243,12 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
-$as_echo_n "checking for library containing clock_gettime... " >&6; }
-if ${ac_cv_search_clock_gettime+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+printf %s "checking for library containing clock_gettime... " >&6; }
+if test ${ac_cv_search_clock_gettime+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -10941,46 +13256,48 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char clock_gettime ();
 int
-main ()
+main (void)
 {
 return clock_gettime ();
   ;
   return 0;
 }
 _ACEOF
-for ac_lib in '' rt; do
+for ac_lib in '' rt
+do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_search_clock_gettime=$ac_res
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext
-  if ${ac_cv_search_clock_gettime+:} false; then :
+  if test ${ac_cv_search_clock_gettime+y}
+then :
   break
 fi
 done
-if ${ac_cv_search_clock_gettime+:} false; then :
+if test ${ac_cv_search_clock_gettime+y}
+then :
 
-else
+else $as_nop
   ac_cv_search_clock_gettime=no
 fi
 rm conftest.$ac_ext
 LIBS=$ac_func_search_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
-$as_echo "$ac_cv_search_clock_gettime" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+printf "%s\n" "$ac_cv_search_clock_gettime" >&6; }
 ac_res=$ac_cv_search_clock_gettime
-if test "$ac_res" != no; then :
+if test "$ac_res" != no
+then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
 fi
@@ -10993,8 +13310,8 @@ if test "x$je_cv_cray_prgenv_wrapper" = "xyes" ; then
 
     unset ac_cv_search_clock_gettime
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -dynamic" >&5
-$as_echo_n "checking whether compiler supports -dynamic... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -dynamic" >&5
+printf %s "checking whether compiler supports -dynamic... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-dynamic
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -11015,7 +13332,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -11024,18 +13341,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-dynamic
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -11043,11 +13361,12 @@ else
 fi
 
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
-$as_echo_n "checking for library containing clock_gettime... " >&6; }
-if ${ac_cv_search_clock_gettime+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+printf %s "checking for library containing clock_gettime... " >&6; }
+if test ${ac_cv_search_clock_gettime+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -11055,46 +13374,48 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
 char clock_gettime ();
 int
-main ()
+main (void)
 {
 return clock_gettime ();
   ;
   return 0;
 }
 _ACEOF
-for ac_lib in '' rt; do
+for ac_lib in '' rt
+do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_c_try_link "$LINENO"
+then :
   ac_cv_search_clock_gettime=$ac_res
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext
-  if ${ac_cv_search_clock_gettime+:} false; then :
+  if test ${ac_cv_search_clock_gettime+y}
+then :
   break
 fi
 done
-if ${ac_cv_search_clock_gettime+:} false; then :
+if test ${ac_cv_search_clock_gettime+y}
+then :
 
-else
+else $as_nop
   ac_cv_search_clock_gettime=no
 fi
 rm conftest.$ac_ext
 LIBS=$ac_func_search_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
-$as_echo "$ac_cv_search_clock_gettime" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+printf "%s\n" "$ac_cv_search_clock_gettime" >&6; }
 ac_res=$ac_cv_search_clock_gettime
-if test "$ac_res" != no; then :
+if test "$ac_res" != no
+then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
 fi
@@ -11112,18 +13433,19 @@ fi
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is compilable" >&5
-$as_echo_n "checking whether clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is compilable... " >&6; }
-if ${je_cv_clock_monotonic_coarse+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is compilable" >&5
+printf %s "checking whether clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is compilable... " >&6; }
+if test ${je_cv_clock_monotonic_coarse+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <time.h>
 
 int
-main ()
+main (void)
 {
 
 	struct timespec ts;
@@ -11134,28 +13456,31 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_clock_monotonic_coarse=yes
-else
+else $as_nop
   je_cv_clock_monotonic_coarse=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_clock_monotonic_coarse" >&5
-$as_echo "$je_cv_clock_monotonic_coarse" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_clock_monotonic_coarse" >&5
+printf "%s\n" "$je_cv_clock_monotonic_coarse" >&6; }
 
 if test "x${je_cv_clock_monotonic_coarse}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE  " >>confdefs.h
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether clock_gettime(CLOCK_MONOTONIC, ...) is compilable" >&5
-$as_echo_n "checking whether clock_gettime(CLOCK_MONOTONIC, ...) is compilable... " >&6; }
-if ${je_cv_clock_monotonic+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether clock_gettime(CLOCK_MONOTONIC, ...) is compilable" >&5
+printf %s "checking whether clock_gettime(CLOCK_MONOTONIC, ...) is compilable... " >&6; }
+if test ${je_cv_clock_monotonic+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -11163,7 +13488,7 @@ else
 #include <time.h>
 
 int
-main ()
+main (void)
 {
 
 	struct timespec ts;
@@ -11177,35 +13502,38 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_clock_monotonic=yes
-else
+else $as_nop
   je_cv_clock_monotonic=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_clock_monotonic" >&5
-$as_echo "$je_cv_clock_monotonic" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_clock_monotonic" >&5
+printf "%s\n" "$je_cv_clock_monotonic" >&6; }
 
 if test "x${je_cv_clock_monotonic}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_CLOCK_MONOTONIC 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_CLOCK_MONOTONIC  " >>confdefs.h
 
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mach_absolute_time() is compilable" >&5
-$as_echo_n "checking whether mach_absolute_time() is compilable... " >&6; }
-if ${je_cv_mach_absolute_time+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether mach_absolute_time() is compilable" >&5
+printf %s "checking whether mach_absolute_time() is compilable... " >&6; }
+if test ${je_cv_mach_absolute_time+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <mach/mach_time.h>
 
 int
-main ()
+main (void)
 {
 
 	mach_absolute_time();
@@ -11214,31 +13542,76 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_mach_absolute_time=yes
-else
+else $as_nop
   je_cv_mach_absolute_time=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_mach_absolute_time" >&5
-$as_echo "$je_cv_mach_absolute_time" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_mach_absolute_time" >&5
+printf "%s\n" "$je_cv_mach_absolute_time" >&6; }
 
 if test "x${je_cv_mach_absolute_time}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_MACH_ABSOLUTE_TIME 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_MACH_ABSOLUTE_TIME  " >>confdefs.h
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether clock_gettime(CLOCK_REALTIME, ...) is compilable" >&5
+printf %s "checking whether clock_gettime(CLOCK_REALTIME, ...) is compilable... " >&6; }
+if test ${je_cv_clock_realtime+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <time.h>
+
+int
+main (void)
+{
+
+	struct timespec ts;
+
+	clock_gettime(CLOCK_REALTIME, &ts);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_clock_realtime=yes
+else $as_nop
+  je_cv_clock_realtime=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_clock_realtime" >&5
+printf "%s\n" "$je_cv_clock_realtime" >&6; }
+
+if test "x${je_cv_clock_realtime}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_CLOCK_REALTIME  " >>confdefs.h
 
 fi
 
 # Check whether --enable-syscall was given.
-if test "${enable_syscall+set}" = set; then :
+if test ${enable_syscall+y}
+then :
   enableval=$enable_syscall; if test "x$enable_syscall" = "xno" ; then
   enable_syscall="0"
 else
   enable_syscall="1"
 fi
 
-else
+else $as_nop
   enable_syscall="1"
 
 fi
@@ -11247,8 +13620,8 @@ if test "x$enable_syscall" = "x1" ; then
       SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -11269,7 +13642,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -11278,18 +13651,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -11298,11 +13672,12 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether syscall(2) is compilable" >&5
-$as_echo_n "checking whether syscall(2) is compilable... " >&6; }
-if ${je_cv_syscall+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether syscall(2) is compilable" >&5
+printf %s "checking whether syscall(2) is compilable... " >&6; }
+if test ${je_cv_syscall+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -11310,7 +13685,7 @@ else
 #include <unistd.h>
 
 int
-main ()
+main (void)
 {
 
 	syscall(SYS_write, 2, "hello", 5);
@@ -11319,16 +13694,17 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_syscall=yes
-else
+else $as_nop
   je_cv_syscall=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_syscall" >&5
-$as_echo "$je_cv_syscall" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_syscall" >&5
+printf "%s\n" "$je_cv_syscall" >&6; }
 
   CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -11339,122 +13715,151 @@ fi
 
 
   if test "x$je_cv_syscall" = "xyes" ; then
-    $as_echo "#define JEMALLOC_USE_SYSCALL  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_USE_SYSCALL  " >>confdefs.h
 
   fi
 fi
 
 ac_fn_c_check_func "$LINENO" "secure_getenv" "ac_cv_func_secure_getenv"
-if test "x$ac_cv_func_secure_getenv" = xyes; then :
+if test "x$ac_cv_func_secure_getenv" = xyes
+then :
   have_secure_getenv="1"
-else
+else $as_nop
   have_secure_getenv="0"
 
 fi
 
 if test "x$have_secure_getenv" = "x1" ; then
-  $as_echo "#define JEMALLOC_HAVE_SECURE_GETENV  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_SECURE_GETENV  " >>confdefs.h
 
 fi
 
 ac_fn_c_check_func "$LINENO" "sched_getcpu" "ac_cv_func_sched_getcpu"
-if test "x$ac_cv_func_sched_getcpu" = xyes; then :
+if test "x$ac_cv_func_sched_getcpu" = xyes
+then :
   have_sched_getcpu="1"
-else
+else $as_nop
   have_sched_getcpu="0"
 
 fi
 
 if test "x$have_sched_getcpu" = "x1" ; then
-  $as_echo "#define JEMALLOC_HAVE_SCHED_GETCPU  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_SCHED_GETCPU  " >>confdefs.h
 
 fi
 
 ac_fn_c_check_func "$LINENO" "sched_setaffinity" "ac_cv_func_sched_setaffinity"
-if test "x$ac_cv_func_sched_setaffinity" = xyes; then :
+if test "x$ac_cv_func_sched_setaffinity" = xyes
+then :
   have_sched_setaffinity="1"
-else
+else $as_nop
   have_sched_setaffinity="0"
 
 fi
 
 if test "x$have_sched_setaffinity" = "x1" ; then
-  $as_echo "#define JEMALLOC_HAVE_SCHED_SETAFFINITY  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_SCHED_SETAFFINITY  " >>confdefs.h
 
 fi
 
 ac_fn_c_check_func "$LINENO" "issetugid" "ac_cv_func_issetugid"
-if test "x$ac_cv_func_issetugid" = xyes; then :
+if test "x$ac_cv_func_issetugid" = xyes
+then :
   have_issetugid="1"
-else
+else $as_nop
   have_issetugid="0"
 
 fi
 
 if test "x$have_issetugid" = "x1" ; then
-  $as_echo "#define JEMALLOC_HAVE_ISSETUGID  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_ISSETUGID  " >>confdefs.h
 
 fi
 
 ac_fn_c_check_func "$LINENO" "_malloc_thread_cleanup" "ac_cv_func__malloc_thread_cleanup"
-if test "x$ac_cv_func__malloc_thread_cleanup" = xyes; then :
+if test "x$ac_cv_func__malloc_thread_cleanup" = xyes
+then :
   have__malloc_thread_cleanup="1"
-else
+else $as_nop
   have__malloc_thread_cleanup="0"
 
 fi
 
 if test "x$have__malloc_thread_cleanup" = "x1" ; then
-  $as_echo "#define JEMALLOC_MALLOC_THREAD_CLEANUP  " >>confdefs.h
 
-  wrap_syms="${wrap_syms} _malloc_thread_cleanup"
+printf "%s\n" "#define JEMALLOC_MALLOC_THREAD_CLEANUP  " >>confdefs.h
+
+  wrap_syms="${wrap_syms} _malloc_thread_cleanup _malloc_tsd_cleanup_register"
   force_tls="1"
 fi
 
 ac_fn_c_check_func "$LINENO" "_pthread_mutex_init_calloc_cb" "ac_cv_func__pthread_mutex_init_calloc_cb"
-if test "x$ac_cv_func__pthread_mutex_init_calloc_cb" = xyes; then :
+if test "x$ac_cv_func__pthread_mutex_init_calloc_cb" = xyes
+then :
   have__pthread_mutex_init_calloc_cb="1"
-else
+else $as_nop
   have__pthread_mutex_init_calloc_cb="0"
 
 fi
 
 if test "x$have__pthread_mutex_init_calloc_cb" = "x1" ; then
-  $as_echo "#define JEMALLOC_MUTEX_INIT_CB 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_MUTEX_INIT_CB  " >>confdefs.h
 
   wrap_syms="${wrap_syms} _malloc_prefork _malloc_postfork"
 fi
 
+ac_fn_c_check_func "$LINENO" "memcntl" "ac_cv_func_memcntl"
+if test "x$ac_cv_func_memcntl" = xyes
+then :
+  have_memcntl="1"
+else $as_nop
+  have_memcntl="0"
+fi
+
+if test "x$have_memcntl" = "x1" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_MEMCNTL  " >>confdefs.h
+
+fi
+
 # Check whether --enable-lazy_lock was given.
-if test "${enable_lazy_lock+set}" = set; then :
+if test ${enable_lazy_lock+y}
+then :
   enableval=$enable_lazy_lock; if test "x$enable_lazy_lock" = "xno" ; then
   enable_lazy_lock="0"
 else
   enable_lazy_lock="1"
 fi
 
-else
+else $as_nop
   enable_lazy_lock=""
 
 fi
 
 if test "x${enable_lazy_lock}" = "x" ; then
   if test "x${force_lazy_lock}" = "x1" ; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&5
-$as_echo "Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&5
+printf "%s\n" "Forcing lazy-lock to avoid allocator/threading bootstrap issues" >&6; }
     enable_lazy_lock="1"
   else
     enable_lazy_lock="0"
   fi
 fi
 if test "x${enable_lazy_lock}" = "x1" -a "x${abi}" = "xpecoff" ; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: Forcing no lazy-lock because thread creation monitoring is unimplemented" >&5
-$as_echo "Forcing no lazy-lock because thread creation monitoring is unimplemented" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Forcing no lazy-lock because thread creation monitoring is unimplemented" >&5
+printf "%s\n" "Forcing no lazy-lock because thread creation monitoring is unimplemented" >&6; }
   enable_lazy_lock="0"
 fi
 if test "x$enable_lazy_lock" = "x1" ; then
   if test "x$have_dlsym" = "x1" ; then
-    $as_echo "#define JEMALLOC_LAZY_LOCK  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_LAZY_LOCK  " >>confdefs.h
 
   else
     as_fn_error $? "Missing dlsym support: lazy-lock cannot be enabled." "$LINENO" 5
@@ -11470,15 +13875,15 @@ else
   enable_tls="1"
 fi
 if test "x${enable_tls}" = "x1" ; then
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for TLS" >&5
-$as_echo_n "checking for TLS... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for TLS" >&5
+printf %s "checking for TLS... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
     __thread int x;
 
 int
-main ()
+main (void)
 {
 
     x = 42;
@@ -11489,33 +13894,34 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               enable_tls="0"
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 else
   enable_tls="0"
 fi
 
 if test "x${enable_tls}" = "x1" ; then
-  cat >>confdefs.h <<_ACEOF
-#define JEMALLOC_TLS
-_ACEOF
+
+printf "%s\n" "#define JEMALLOC_TLS  " >>confdefs.h
 
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C11 atomics is compilable" >&5
-$as_echo_n "checking whether C11 atomics is compilable... " >&6; }
-if ${je_cv_c11_atomics+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C11 atomics is compilable" >&5
+printf %s "checking whether C11 atomics is compilable... " >&6; }
+if test ${je_cv_c11_atomics+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -11527,7 +13933,7 @@ else
 #endif
 
 int
-main ()
+main (void)
 {
 
     uint64_t *p = (uint64_t *)0;
@@ -11540,35 +13946,38 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_c11_atomics=yes
-else
+else $as_nop
   je_cv_c11_atomics=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_c11_atomics" >&5
-$as_echo "$je_cv_c11_atomics" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_c11_atomics" >&5
+printf "%s\n" "$je_cv_c11_atomics" >&6; }
 
 if test "x${je_cv_c11_atomics}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_C11_ATOMICS 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_C11_ATOMICS  " >>confdefs.h
 
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GCC __atomic atomics is compilable" >&5
-$as_echo_n "checking whether GCC __atomic atomics is compilable... " >&6; }
-if ${je_cv_gcc_atomic_atomics+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether GCC __atomic atomics is compilable" >&5
+printf %s "checking whether GCC __atomic atomics is compilable... " >&6; }
+if test ${je_cv_gcc_atomic_atomics+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
 int
-main ()
+main (void)
 {
 
     int x = 0;
@@ -11581,33 +13990,36 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_atomic_atomics=yes
-else
+else $as_nop
   je_cv_gcc_atomic_atomics=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_atomic_atomics" >&5
-$as_echo "$je_cv_gcc_atomic_atomics" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_atomic_atomics" >&5
+printf "%s\n" "$je_cv_gcc_atomic_atomics" >&6; }
 
 if test "x${je_cv_gcc_atomic_atomics}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_GCC_ATOMIC_ATOMICS 1" >>confdefs.h
 
+printf "%s\n" "#define JEMALLOC_GCC_ATOMIC_ATOMICS  " >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GCC 8-bit __atomic atomics is compilable" >&5
-$as_echo_n "checking whether GCC 8-bit __atomic atomics is compilable... " >&6; }
-if ${je_cv_gcc_u8_atomic_atomics+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether GCC 8-bit __atomic atomics is compilable" >&5
+printf %s "checking whether GCC 8-bit __atomic atomics is compilable... " >&6; }
+if test ${je_cv_gcc_u8_atomic_atomics+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
 int
-main ()
+main (void)
 {
 
       unsigned char x = 0;
@@ -11620,36 +14032,39 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_u8_atomic_atomics=yes
-else
+else $as_nop
   je_cv_gcc_u8_atomic_atomics=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_u8_atomic_atomics" >&5
-$as_echo "$je_cv_gcc_u8_atomic_atomics" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_u8_atomic_atomics" >&5
+printf "%s\n" "$je_cv_gcc_u8_atomic_atomics" >&6; }
 
   if test "x${je_cv_gcc_u8_atomic_atomics}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_GCC_U8_ATOMIC_ATOMICS 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_GCC_U8_ATOMIC_ATOMICS  " >>confdefs.h
 
   fi
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GCC __sync atomics is compilable" >&5
-$as_echo_n "checking whether GCC __sync atomics is compilable... " >&6; }
-if ${je_cv_gcc_sync_atomics+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether GCC __sync atomics is compilable" >&5
+printf %s "checking whether GCC __sync atomics is compilable... " >&6; }
+if test ${je_cv_gcc_sync_atomics+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
 int
-main ()
+main (void)
 {
 
     int x = 0;
@@ -11661,33 +14076,36 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_sync_atomics=yes
-else
+else $as_nop
   je_cv_gcc_sync_atomics=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_sync_atomics" >&5
-$as_echo "$je_cv_gcc_sync_atomics" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_sync_atomics" >&5
+printf "%s\n" "$je_cv_gcc_sync_atomics" >&6; }
 
 if test "x${je_cv_gcc_sync_atomics}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_GCC_SYNC_ATOMICS 1" >>confdefs.h
 
+printf "%s\n" "#define JEMALLOC_GCC_SYNC_ATOMICS  " >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GCC 8-bit __sync atomics is compilable" >&5
-$as_echo_n "checking whether GCC 8-bit __sync atomics is compilable... " >&6; }
-if ${je_cv_gcc_u8_sync_atomics+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether GCC 8-bit __sync atomics is compilable" >&5
+printf %s "checking whether GCC 8-bit __sync atomics is compilable... " >&6; }
+if test ${je_cv_gcc_u8_sync_atomics+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 
 int
-main ()
+main (void)
 {
 
       unsigned char x = 0;
@@ -11699,30 +14117,33 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_gcc_u8_sync_atomics=yes
-else
+else $as_nop
   je_cv_gcc_u8_sync_atomics=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_u8_sync_atomics" >&5
-$as_echo "$je_cv_gcc_u8_sync_atomics" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_gcc_u8_sync_atomics" >&5
+printf "%s\n" "$je_cv_gcc_u8_sync_atomics" >&6; }
 
   if test "x${je_cv_gcc_u8_sync_atomics}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_GCC_U8_SYNC_ATOMICS 1" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_GCC_U8_SYNC_ATOMICS  " >>confdefs.h
 
   fi
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Darwin OSAtomic*() is compilable" >&5
-$as_echo_n "checking whether Darwin OSAtomic*() is compilable... " >&6; }
-if ${je_cv_osatomic+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether Darwin OSAtomic*() is compilable" >&5
+printf %s "checking whether Darwin OSAtomic*() is compilable... " >&6; }
+if test ${je_cv_osatomic+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -11730,7 +14151,7 @@ else
 #include <inttypes.h>
 
 int
-main ()
+main (void)
 {
 
 	{
@@ -11748,36 +14169,39 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_osatomic=yes
-else
+else $as_nop
   je_cv_osatomic=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_osatomic" >&5
-$as_echo "$je_cv_osatomic" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_osatomic" >&5
+printf "%s\n" "$je_cv_osatomic" >&6; }
 
 if test "x${je_cv_osatomic}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_OSATOMIC  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_OSATOMIC  " >>confdefs.h
 
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether madvise(2) is compilable" >&5
-$as_echo_n "checking whether madvise(2) is compilable... " >&6; }
-if ${je_cv_madvise+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(2) is compilable" >&5
+printf %s "checking whether madvise(2) is compilable... " >&6; }
+if test ${je_cv_madvise+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/mman.h>
 
 int
-main ()
+main (void)
 {
 
 	madvise((void *)0, 0, 0);
@@ -11786,34 +14210,37 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_madvise=yes
-else
+else $as_nop
   je_cv_madvise=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_madvise" >&5
-$as_echo "$je_cv_madvise" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_madvise" >&5
+printf "%s\n" "$je_cv_madvise" >&6; }
 
 if test "x${je_cv_madvise}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_MADVISE  " >>confdefs.h
 
+printf "%s\n" "#define JEMALLOC_HAVE_MADVISE  " >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_FREE) is compilable" >&5
-$as_echo_n "checking whether madvise(..., MADV_FREE) is compilable... " >&6; }
-if ${je_cv_madv_free+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_FREE) is compilable" >&5
+printf %s "checking whether madvise(..., MADV_FREE) is compilable... " >&6; }
+if test ${je_cv_madv_free+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/mman.h>
 
 int
-main ()
+main (void)
 {
 
 	madvise((void *)0, 0, MADV_FREE);
@@ -11822,26 +14249,30 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_madv_free=yes
-else
+else $as_nop
   je_cv_madv_free=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_free" >&5
-$as_echo "$je_cv_madv_free" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_free" >&5
+printf "%s\n" "$je_cv_madv_free" >&6; }
 
   if test "x${je_cv_madv_free}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_PURGE_MADVISE_FREE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PURGE_MADVISE_FREE  " >>confdefs.h
 
   elif test "x${je_cv_madvise}" = "xyes" ; then
     case "${host_cpu}" in i686|x86_64)
         case "${host}" in *-*-linux*)
-            $as_echo "#define JEMALLOC_PURGE_MADVISE_FREE  " >>confdefs.h
 
-            $as_echo "#define JEMALLOC_DEFINE_MADVISE_FREE  " >>confdefs.h
+printf "%s\n" "#define JEMALLOC_PURGE_MADVISE_FREE  " >>confdefs.h
+
+
+printf "%s\n" "#define JEMALLOC_DEFINE_MADVISE_FREE  " >>confdefs.h
 
 	    ;;
         esac
@@ -11850,18 +14281,19 @@ $as_echo "$je_cv_madv_free" >&6; }
   fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_DONTNEED) is compilable" >&5
-$as_echo_n "checking whether madvise(..., MADV_DONTNEED) is compilable... " >&6; }
-if ${je_cv_madv_dontneed+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_DONTNEED) is compilable" >&5
+printf %s "checking whether madvise(..., MADV_DONTNEED) is compilable... " >&6; }
+if test ${je_cv_madv_dontneed+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/mman.h>
 
 int
-main ()
+main (void)
 {
 
 	madvise((void *)0, 0, MADV_DONTNEED);
@@ -11870,35 +14302,38 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_madv_dontneed=yes
-else
+else $as_nop
   je_cv_madv_dontneed=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_dontneed" >&5
-$as_echo "$je_cv_madv_dontneed" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_dontneed" >&5
+printf "%s\n" "$je_cv_madv_dontneed" >&6; }
 
   if test "x${je_cv_madv_dontneed}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_PURGE_MADVISE_DONTNEED  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_PURGE_MADVISE_DONTNEED  " >>confdefs.h
 
   fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_DO[NT]DUMP) is compilable" >&5
-$as_echo_n "checking whether madvise(..., MADV_DO[NT]DUMP) is compilable... " >&6; }
-if ${je_cv_madv_dontdump+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_DO[NT]DUMP) is compilable" >&5
+printf %s "checking whether madvise(..., MADV_DO[NT]DUMP) is compilable... " >&6; }
+if test ${je_cv_madv_dontdump+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/mman.h>
 
 int
-main ()
+main (void)
 {
 
 	madvise((void *)0, 0, MADV_DONTDUMP);
@@ -11908,35 +14343,38 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_madv_dontdump=yes
-else
+else $as_nop
   je_cv_madv_dontdump=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_dontdump" >&5
-$as_echo "$je_cv_madv_dontdump" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_dontdump" >&5
+printf "%s\n" "$je_cv_madv_dontdump" >&6; }
 
   if test "x${je_cv_madv_dontdump}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_MADVISE_DONTDUMP  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_MADVISE_DONTDUMP  " >>confdefs.h
 
   fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_[NO]HUGEPAGE) is compilable" >&5
-$as_echo_n "checking whether madvise(..., MADV_[NO]HUGEPAGE) is compilable... " >&6; }
-if ${je_cv_thp+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_[NO]HUGEPAGE) is compilable" >&5
+printf %s "checking whether madvise(..., MADV_[NO]HUGEPAGE) is compilable... " >&6; }
+if test ${je_cv_thp+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <sys/mman.h>
 
 int
-main ()
+main (void)
 {
 
 	madvise((void *)0, 0, MADV_HUGEPAGE);
@@ -11946,40 +14384,204 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_thp=yes
-else
+else $as_nop
   je_cv_thp=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_thp" >&5
+printf "%s\n" "$je_cv_thp" >&6; }
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether madvise(..., MADV_[NO]CORE) is compilable" >&5
+printf %s "checking whether madvise(..., MADV_[NO]CORE) is compilable... " >&6; }
+if test ${je_cv_madv_nocore+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/mman.h>
+
+int
+main (void)
+{
+
+	madvise((void *)0, 0, MADV_NOCORE);
+	madvise((void *)0, 0, MADV_CORE);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_madv_nocore=yes
+else $as_nop
+  je_cv_madv_nocore=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_thp" >&5
-$as_echo "$je_cv_thp" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_madv_nocore" >&5
+printf "%s\n" "$je_cv_madv_nocore" >&6; }
+
+  if test "x${je_cv_madv_nocore}" = "xyes" ; then
 
+printf "%s\n" "#define JEMALLOC_MADVISE_NOCORE  " >>confdefs.h
+
+  fi
 case "${host_cpu}" in
   arm*)
     ;;
   *)
   if test "x${je_cv_thp}" = "xyes" ; then
-    $as_echo "#define JEMALLOC_HAVE_MADVISE_HUGE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_MADVISE_HUGE  " >>confdefs.h
 
   fi
   ;;
 esac
+else
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether posix_madvise is compilable" >&5
+printf %s "checking whether posix_madvise is compilable... " >&6; }
+if test ${je_cv_posix_madvise+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include <sys/mman.h>
+
+int
+main (void)
+{
+
+    posix_madvise((void *)0, 0, 0);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_posix_madvise=yes
+else $as_nop
+  je_cv_posix_madvise=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
 fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_posix_madvise" >&5
+printf "%s\n" "$je_cv_posix_madvise" >&6; }
 
+  if test "x${je_cv_posix_madvise}" = "xyes" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_clz" >&5
-$as_echo_n "checking for __builtin_clz... " >&6; }
-if ${je_cv_builtin_clz+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+printf "%s\n" "#define JEMALLOC_HAVE_POSIX_MADVISE  " >>confdefs.h
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether posix_madvise(..., POSIX_MADV_DONTNEED) is compilable" >&5
+printf %s "checking whether posix_madvise(..., POSIX_MADV_DONTNEED) is compilable... " >&6; }
+if test ${je_cv_posix_madv_dontneed+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+  #include <sys/mman.h>
+
 int
-main ()
+main (void)
+{
+
+    posix_madvise((void *)0, 0, POSIX_MADV_DONTNEED);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_posix_madv_dontneed=yes
+else $as_nop
+  je_cv_posix_madv_dontneed=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_posix_madv_dontneed" >&5
+printf "%s\n" "$je_cv_posix_madv_dontneed" >&6; }
+
+    if test "x${je_cv_posix_madv_dontneed}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_PURGE_POSIX_MADVISE_DONTNEED  " >>confdefs.h
+
+    fi
+  fi
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether mprotect(2) is compilable" >&5
+printf %s "checking whether mprotect(2) is compilable... " >&6; }
+if test ${je_cv_mprotect+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/mman.h>
+
+int
+main (void)
+{
+
+	mprotect((void *)0, 0, PROT_NONE);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  je_cv_mprotect=yes
+else $as_nop
+  je_cv_mprotect=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_mprotect" >&5
+printf "%s\n" "$je_cv_mprotect" >&6; }
+
+if test "x${je_cv_mprotect}" = "xyes" ; then
+
+printf "%s\n" "#define JEMALLOC_HAVE_MPROTECT  " >>confdefs.h
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_clz" >&5
+printf %s "checking for __builtin_clz... " >&6; }
+if test ${je_cv_builtin_clz+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
 {
 
                                                 {
@@ -11990,34 +14592,41 @@ main ()
                                                         unsigned long x = 0;
                                                         int y = __builtin_clzl(x);
                                                 }
+                                                {
+                                                        unsigned long long x = 0;
+                                                        int y = __builtin_clzll(x);
+                                                }
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_builtin_clz=yes
-else
+else $as_nop
   je_cv_builtin_clz=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_builtin_clz" >&5
-$as_echo "$je_cv_builtin_clz" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_builtin_clz" >&5
+printf "%s\n" "$je_cv_builtin_clz" >&6; }
 
 if test "x${je_cv_builtin_clz}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_BUILTIN_CLZ  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_BUILTIN_CLZ  " >>confdefs.h
 
 fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Darwin os_unfair_lock_*() is compilable" >&5
-$as_echo_n "checking whether Darwin os_unfair_lock_*() is compilable... " >&6; }
-if ${je_cv_os_unfair_lock+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether Darwin os_unfair_lock_*() is compilable" >&5
+printf %s "checking whether Darwin os_unfair_lock_*() is compilable... " >&6; }
+if test ${je_cv_os_unfair_lock+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -12025,7 +14634,7 @@ else
 #include <AvailabilityMacros.h>
 
 int
-main ()
+main (void)
 {
 
 	#if MAC_OS_X_VERSION_MIN_REQUIRED < 101200
@@ -12040,32 +14649,35 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_os_unfair_lock=yes
-else
+else $as_nop
   je_cv_os_unfair_lock=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_os_unfair_lock" >&5
-$as_echo "$je_cv_os_unfair_lock" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_os_unfair_lock" >&5
+printf "%s\n" "$je_cv_os_unfair_lock" >&6; }
 
 if test "x${je_cv_os_unfair_lock}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_OS_UNFAIR_LOCK  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_OS_UNFAIR_LOCK  " >>confdefs.h
 
 fi
 
 
 # Check whether --enable-zone-allocator was given.
-if test "${enable_zone_allocator+set}" = set; then :
+if test ${enable_zone_allocator+y}
+then :
   enableval=$enable_zone_allocator; if test "x$enable_zone_allocator" = "xno" ; then
   enable_zone_allocator="0"
 else
   enable_zone_allocator="1"
 fi
 
-else
+else $as_nop
   if test "x${abi}" = "xmacho"; then
   enable_zone_allocator="1"
 fi
@@ -12079,19 +14691,21 @@ if test "x${enable_zone_allocator}" = "x1" ; then
   if test "x${abi}" != "xmacho"; then
     as_fn_error $? "--enable-zone-allocator is only supported on Darwin" "$LINENO" 5
   fi
-  $as_echo "#define JEMALLOC_ZONE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_ZONE  " >>confdefs.h
 
 fi
 
 # Check whether --enable-initial-exec-tls was given.
-if test "${enable_initial_exec_tls+set}" = set; then :
+if test ${enable_initial_exec_tls+y}
+then :
   enableval=$enable_initial_exec_tls; if test "x$enable_initial_exec_tls" = "xno" ; then
   enable_initial_exec_tls="0"
 else
   enable_initial_exec_tls="1"
 fi
 
-else
+else $as_nop
   enable_initial_exec_tls="1"
 
 fi
@@ -12100,123 +14714,136 @@ fi
 
 if test "x${je_cv_tls_model}" = "xyes" -a \
        "x${enable_initial_exec_tls}" = "x1" ; then
-  $as_echo "#define JEMALLOC_TLS_MODEL __attribute__((tls_model(\"initial-exec\")))" >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_TLS_MODEL __attribute__((tls_model(\"initial-exec\")))" >>confdefs.h
 
 else
-  $as_echo "#define JEMALLOC_TLS_MODEL  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_TLS_MODEL  " >>confdefs.h
 
 fi
 
 
-if test "x${have_pthread}" = "x1" -a "x${je_cv_os_unfair_lock}" != "xyes" ; then
-  $as_echo "#define JEMALLOC_BACKGROUND_THREAD 1" >>confdefs.h
+if test "x${have_pthread}" = "x1" -a "x${je_cv_os_unfair_lock}" != "xyes" -a \
+       "x${abi}" != "xmacho" ; then
+
+printf "%s\n" "#define JEMALLOC_BACKGROUND_THREAD  " >>confdefs.h
 
 fi
 
 
+if test "x$glibc" = "x1" ; then
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether glibc malloc hook is compilable" >&5
-$as_echo_n "checking whether glibc malloc hook is compilable... " >&6; }
-if ${je_cv_glibc_malloc_hook+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether glibc malloc hook is compilable" >&5
+printf %s "checking whether glibc malloc hook is compilable... " >&6; }
+if test ${je_cv_glibc_malloc_hook+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#include <stddef.h>
+  #include <stddef.h>
 
-extern void (* __free_hook)(void *ptr);
-extern void *(* __malloc_hook)(size_t size);
-extern void *(* __realloc_hook)(void *ptr, size_t size);
+  extern void (* __free_hook)(void *ptr);
+  extern void *(* __malloc_hook)(size_t size);
+  extern void *(* __realloc_hook)(void *ptr, size_t size);
 
 int
-main ()
+main (void)
 {
 
-  void *ptr = 0L;
-  if (__malloc_hook) ptr = __malloc_hook(1);
-  if (__realloc_hook) ptr = __realloc_hook(ptr, 2);
-  if (__free_hook && ptr) __free_hook(ptr);
+    void *ptr = 0L;
+    if (__malloc_hook) ptr = __malloc_hook(1);
+    if (__realloc_hook) ptr = __realloc_hook(ptr, 2);
+    if (__free_hook && ptr) __free_hook(ptr);
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_glibc_malloc_hook=yes
-else
+else $as_nop
   je_cv_glibc_malloc_hook=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_glibc_malloc_hook" >&5
-$as_echo "$je_cv_glibc_malloc_hook" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_glibc_malloc_hook" >&5
+printf "%s\n" "$je_cv_glibc_malloc_hook" >&6; }
 
-if test "x${je_cv_glibc_malloc_hook}" = "xyes" ; then
-  if test "x${JEMALLOC_PREFIX}" = "x" ; then
-    $as_echo "#define JEMALLOC_GLIBC_MALLOC_HOOK  " >>confdefs.h
+  if test "x${je_cv_glibc_malloc_hook}" = "xyes" ; then
+    if test "x${JEMALLOC_PREFIX}" = "x" ; then
 
-    wrap_syms="${wrap_syms} __free_hook __malloc_hook __realloc_hook"
+printf "%s\n" "#define JEMALLOC_GLIBC_MALLOC_HOOK  " >>confdefs.h
+
+      wrap_syms="${wrap_syms} __free_hook __malloc_hook __realloc_hook"
+    fi
   fi
-fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether glibc memalign hook is compilable" >&5
-$as_echo_n "checking whether glibc memalign hook is compilable... " >&6; }
-if ${je_cv_glibc_memalign_hook+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether glibc memalign hook is compilable" >&5
+printf %s "checking whether glibc memalign hook is compilable... " >&6; }
+if test ${je_cv_glibc_memalign_hook+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#include <stddef.h>
+  #include <stddef.h>
 
-extern void *(* __memalign_hook)(size_t alignment, size_t size);
+  extern void *(* __memalign_hook)(size_t alignment, size_t size);
 
 int
-main ()
+main (void)
 {
 
-  void *ptr = 0L;
-  if (__memalign_hook) ptr = __memalign_hook(16, 7);
+    void *ptr = 0L;
+    if (__memalign_hook) ptr = __memalign_hook(16, 7);
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_glibc_memalign_hook=yes
-else
+else $as_nop
   je_cv_glibc_memalign_hook=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_glibc_memalign_hook" >&5
-$as_echo "$je_cv_glibc_memalign_hook" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_glibc_memalign_hook" >&5
+printf "%s\n" "$je_cv_glibc_memalign_hook" >&6; }
 
-if test "x${je_cv_glibc_memalign_hook}" = "xyes" ; then
-  if test "x${JEMALLOC_PREFIX}" = "x" ; then
-    $as_echo "#define JEMALLOC_GLIBC_MEMALIGN_HOOK  " >>confdefs.h
+  if test "x${je_cv_glibc_memalign_hook}" = "xyes" ; then
+    if test "x${JEMALLOC_PREFIX}" = "x" ; then
 
-    wrap_syms="${wrap_syms} __memalign_hook"
+printf "%s\n" "#define JEMALLOC_GLIBC_MEMALIGN_HOOK  " >>confdefs.h
+
+      wrap_syms="${wrap_syms} __memalign_hook"
+    fi
   fi
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads adaptive mutexes is compilable" >&5
-$as_echo_n "checking whether pthreads adaptive mutexes is compilable... " >&6; }
-if ${je_cv_pthread_mutex_adaptive_np+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthreads adaptive mutexes is compilable" >&5
+printf %s "checking whether pthreads adaptive mutexes is compilable... " >&6; }
+if test ${je_cv_pthread_mutex_adaptive_np+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <pthread.h>
 
 int
-main ()
+main (void)
 {
 
   pthread_mutexattr_t attr;
@@ -12228,27 +14855,29 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_pthread_mutex_adaptive_np=yes
-else
+else $as_nop
   je_cv_pthread_mutex_adaptive_np=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_mutex_adaptive_np" >&5
-$as_echo "$je_cv_pthread_mutex_adaptive_np" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_pthread_mutex_adaptive_np" >&5
+printf "%s\n" "$je_cv_pthread_mutex_adaptive_np" >&6; }
 
 if test "x${je_cv_pthread_mutex_adaptive_np}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP  " >>confdefs.h
 
 fi
 
 SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -D_GNU_SOURCE" >&5
-$as_echo_n "checking whether compiler supports -D_GNU_SOURCE... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -D_GNU_SOURCE" >&5
+printf %s "checking whether compiler supports -D_GNU_SOURCE... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-D_GNU_SOURCE
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -12269,7 +14898,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -12278,18 +14907,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-D_GNU_SOURCE
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -12298,8 +14928,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
-$as_echo_n "checking whether compiler supports -Werror... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -Werror" >&5
+printf %s "checking whether compiler supports -Werror... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-Werror
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -12320,7 +14950,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -12329,18 +14959,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-Werror
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -12349,8 +14980,8 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
-$as_echo_n "checking whether compiler supports -herror_on_warning... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiler supports -herror_on_warning" >&5
+printf %s "checking whether compiler supports -herror_on_warning... " >&6; }
 T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
 T_APPEND_V=-herror_on_warning
   if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${T_APPEND_V}" = "x" ; then
@@ -12371,7 +15002,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 
 
 int
-main ()
+main (void)
 {
 
     return 0;
@@ -12380,18 +15011,19 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   je_cv_cflags_added=-herror_on_warning
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
   je_cv_cflags_added=
-              { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
               CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
   CFLAGS="${CONFIGURE_CFLAGS}${SPECIFIED_CFLAGS}"
 else
@@ -12400,11 +15032,12 @@ fi
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strerror_r returns char with gnu source is compilable" >&5
-$as_echo_n "checking whether strerror_r returns char with gnu source is compilable... " >&6; }
-if ${je_cv_strerror_r_returns_char_with_gnu_source+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether strerror_r returns char with gnu source is compilable" >&5
+printf %s "checking whether strerror_r returns char with gnu source is compilable... " >&6; }
+if test ${je_cv_strerror_r_returns_char_with_gnu_source+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -12414,7 +15047,7 @@ else
 #include <string.h>
 
 int
-main ()
+main (void)
 {
 
   char *buffer = (char *) malloc(100);
@@ -12425,16 +15058,17 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   je_cv_strerror_r_returns_char_with_gnu_source=yes
-else
+else $as_nop
   je_cv_strerror_r_returns_char_with_gnu_source=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $je_cv_strerror_r_returns_char_with_gnu_source" >&5
-$as_echo "$je_cv_strerror_r_returns_char_with_gnu_source" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $je_cv_strerror_r_returns_char_with_gnu_source" >&5
+printf "%s\n" "$je_cv_strerror_r_returns_char_with_gnu_source" >&6; }
 
 CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
 if test "x${CONFIGURE_CFLAGS}" = "x" -o "x${SPECIFIED_CFLAGS}" = "x" ; then
@@ -12445,100 +15079,150 @@ fi
 
 
 if test "x${je_cv_strerror_r_returns_char_with_gnu_source}" = "xyes" ; then
-  $as_echo "#define JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE  " >>confdefs.h
+
+printf "%s\n" "#define JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE  " >>confdefs.h
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
-$as_echo_n "checking for stdbool.h that conforms to C99... " >&6; }
-if ${ac_cv_header_stdbool_h+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
+if test "x$ac_cv_type__Bool" = xyes
+then :
+
+printf "%s\n" "#define HAVE__BOOL 1" >>confdefs.h
+
+
+fi
+
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
+printf %s "checking for stdbool.h that conforms to C99... " >&6; }
+if test ${ac_cv_header_stdbool_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <stdbool.h>
 
-             #include <stdbool.h>
-             #ifndef bool
-              "error: bool is not defined"
-             #endif
-             #ifndef false
-              "error: false is not defined"
-             #endif
-             #if false
-              "error: false is not 0"
+             #ifndef __bool_true_false_are_defined
+               #error "__bool_true_false_are_defined is not defined"
              #endif
-             #ifndef true
-              "error: true is not defined"
+             char a[__bool_true_false_are_defined == 1 ? 1 : -1];
+
+             /* Regardless of whether this is C++ or "_Bool" is a
+                valid type name, "true" and "false" should be usable
+                in #if expressions and integer constant expressions,
+                and "bool" should be a valid type name.  */
+
+             #if !true
+               #error "'true' is not true"
              #endif
              #if true != 1
-              "error: true is not 1"
+               #error "'true' is not equal to 1"
              #endif
-             #ifndef __bool_true_false_are_defined
-              "error: __bool_true_false_are_defined is not defined"
+             char b[true == 1 ? 1 : -1];
+             char c[true];
+
+             #if false
+               #error "'false' is not false"
              #endif
+             #if false != 0
+               #error "'false' is not equal to 0"
+             #endif
+             char d[false == 0 ? 1 : -1];
+
+             enum { e = false, f = true, g = false * true, h = true * 256 };
+
+             char i[(bool) 0.5 == true ? 1 : -1];
+             char j[(bool) 0.0 == false ? 1 : -1];
+             char k[sizeof (bool) > 0 ? 1 : -1];
+
+             struct sb { bool s: 1; bool t; } s;
+             char l[sizeof s.t > 0 ? 1 : -1];
 
-             struct s { _Bool s: 1; _Bool t; } s;
-
-             char a[true == 1 ? 1 : -1];
-             char b[false == 0 ? 1 : -1];
-             char c[__bool_true_false_are_defined == 1 ? 1 : -1];
-             char d[(bool) 0.5 == true ? 1 : -1];
-             /* See body of main program for 'e'.  */
-             char f[(_Bool) 0.0 == false ? 1 : -1];
-             char g[true];
-             char h[sizeof (_Bool)];
-             char i[sizeof s.t];
-             enum { j = false, k = true, l = false * true, m = true * 256 };
              /* The following fails for
                 HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
-             _Bool n[m];
-             char o[sizeof n == m * sizeof n[0] ? 1 : -1];
-             char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+             bool m[h];
+             char n[sizeof m == h * sizeof m[0] ? 1 : -1];
+             char o[-1 - (bool) 0 < 0 ? 1 : -1];
              /* Catch a bug in an HP-UX C compiler.  See
-                http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-                http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+         https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+         https://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
               */
-             _Bool q = true;
-             _Bool *pq = &q;
+             bool p = true;
+             bool *pp = &p;
+
+             /* C 1999 specifies that bool, true, and false are to be
+                macros, but C++ 2011 and later overrule this.  */
+             #if __cplusplus < 201103
+              #ifndef bool
+               #error "bool is not defined"
+              #endif
+              #ifndef false
+               #error "false is not defined"
+              #endif
+              #ifndef true
+               #error "true is not defined"
+              #endif
+             #endif
+
+             /* If _Bool is available, repeat with it all the tests
+                above that used bool.  */
+             #ifdef HAVE__BOOL
+               struct sB { _Bool s: 1; _Bool t; } t;
+
+               char q[(_Bool) 0.5 == true ? 1 : -1];
+               char r[(_Bool) 0.0 == false ? 1 : -1];
+               char u[sizeof (_Bool) > 0 ? 1 : -1];
+               char v[sizeof t.t > 0 ? 1 : -1];
+
+               _Bool w[h];
+               char x[sizeof m == h * sizeof m[0] ? 1 : -1];
+               char y[-1 - (_Bool) 0 < 0 ? 1 : -1];
+               _Bool z = true;
+               _Bool *pz = &p;
+             #endif
 
 int
-main ()
+main (void)
 {
 
-             bool e = &s;
-             *pq |= q;
-             *pq |= ! q;
-             /* Refer to every declared value, to avoid compiler optimizations.  */
-             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
-                     + !m + !n + !o + !p + !q + !pq);
+             bool ps = &s;
+             *pp |= p;
+             *pp |= ! p;
+
+             #ifdef HAVE__BOOL
+               _Bool pt = &t;
+               *pz |= z;
+               *pz |= ! z;
+             #endif
+
+             /* Refer to every declared value, so they cannot be
+                discarded as unused.  */
+             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !j + !k
+                     + !l + !m + !n + !o + !p + !pp + !ps
+             #ifdef HAVE__BOOL
+                     + !q + !r + !u + !v + !w + !x + !y + !z + !pt
+             #endif
+                    );
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_header_stdbool_h=yes
-else
+else $as_nop
   ac_cv_header_stdbool_h=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
-$as_echo "$ac_cv_header_stdbool_h" >&6; }
-   ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
-if test "x$ac_cv_type__Bool" = xyes; then :
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE__BOOL 1
-_ACEOF
-
-
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
+printf "%s\n" "$ac_cv_header_stdbool_h" >&6; }
 
 if test $ac_cv_header_stdbool_h = yes; then
 
-$as_echo "#define HAVE_STDBOOL_H 1" >>confdefs.h
+printf "%s\n" "#define HAVE_STDBOOL_H 1" >>confdefs.h
 
 fi
 
@@ -12602,8 +15286,8 @@ _ACEOF
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -12633,15 +15317,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      /^ac_cv_env_/b end
      t clear
      :clear
-     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
      t end
      s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     if test "x$cache_file" != "x/dev/null"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-$as_echo "$as_me: updating cache $cache_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
       if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
       else
@@ -12655,8 +15339,8 @@ $as_echo "$as_me: updating cache $cache_file" >&6;}
       fi
     fi
   else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
 rm -f confcache
@@ -12673,7 +15357,7 @@ U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
   as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -12690,8 +15374,8 @@ LTLIBOBJS=$ac_ltlibobjs
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
 cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
@@ -12714,14 +15398,16 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
+else $as_nop
   case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
@@ -12731,46 +15417,46 @@ esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
 
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -12779,13 +15465,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -12794,8 +15473,12 @@ case $0 in #((
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
@@ -12807,30 +15490,10 @@ if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
@@ -12843,13 +15506,14 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -12876,18 +15540,20 @@ as_fn_unset ()
   { eval $1=; unset $1;}
 }
 as_unset=as_fn_unset
+
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
+else $as_nop
   as_fn_append ()
   {
     eval $1=\$$1\$2
@@ -12899,12 +15565,13 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
+else $as_nop
   as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
@@ -12935,7 +15602,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -12957,6 +15624,10 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTERS
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -12970,6 +15641,12 @@ case `echo -n x` in #(((((
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -13011,7 +15688,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -13020,7 +15697,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -13083,7 +15760,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -13145,14 +15822,16 @@ $config_commands
 Report bugs to the package provider."
 
 _ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.69,
+configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -13191,15 +15870,15 @@ do
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    $as_echo "$ac_cs_version"; exit ;;
+    printf "%s\n" "$ac_cs_version"; exit ;;
   --config | --confi | --conf | --con | --co | --c )
-    $as_echo "$ac_cs_config"; exit ;;
+    printf "%s\n" "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
@@ -13207,7 +15886,7 @@ do
   --header | --heade | --head | --hea )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     as_fn_append CONFIG_HEADERS " '$ac_optarg'"
     ac_need_defaults=false;;
@@ -13216,7 +15895,7 @@ do
     as_fn_error $? "ambiguous option: \`$1'
 Try \`$0 --help' for more information.";;
   --help | --hel | -h )
-    $as_echo "$ac_cs_usage"; exit ;;
+    printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
@@ -13244,7 +15923,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
   set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
-  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
   export CONFIG_SHELL
   exec "\$@"
@@ -13258,7 +15937,7 @@ exec 5>>config.log
   sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  $as_echo "$ac_log"
+  printf "%s\n" "$ac_log"
 } >&5
 
 _ACEOF
@@ -13353,9 +16032,9 @@ done
 # We use the long form for the default assignment because of an extremely
 # bizarre bug on SunOS 4.1.3.
 if $ac_need_defaults; then
-  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
-  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
-  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
+  test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
+  test ${CONFIG_COMMANDS+y} || CONFIG_COMMANDS=$config_commands
 fi
 
 # Have a temporary directory for convenience.  Make it in the build tree
@@ -13691,7 +16370,7 @@ do
 	   esac ||
 	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
@@ -13699,17 +16378,17 @@ do
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf "%s\n" "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
     case $configure_input in #(
     *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
+       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
        sed 's/[\\\\&|]/\\\\&/g'`;; #(
     *) ac_sed_conf_input=$configure_input;;
     esac
@@ -13726,7 +16405,7 @@ $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
+printf "%s\n" X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -13750,9 +16429,9 @@ $as_echo X"$ac_file" |
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -13809,8 +16488,8 @@ ac_sed_dataroot='
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   ac_datarootdir_hack='
@@ -13853,9 +16532,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -13871,27 +16550,27 @@ which seems to be undefined.  Please make sure it is defined" >&2;}
   #
   if test x"$ac_file" != x-; then
     {
-      $as_echo "/* $configure_input  */" \
+      printf "%s\n" "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
     } >"$ac_tmp/config.h" \
       || as_fn_error $? "could not create $ac_file" "$LINENO" 5
     if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-$as_echo "$as_me: $ac_file is unchanged" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
       mv "$ac_tmp/config.h" "$ac_file" \
 	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
-    $as_echo "/* $configure_input  */" \
+    printf "%s\n" "/* $configure_input  */" >&1 \
       && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
       || as_fn_error $? "could not create -" "$LINENO" 5
   fi
  ;;
 
-  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
-$as_echo "$as_me: executing $ac_file commands" >&6;}
+  :C)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+printf "%s\n" "$as_me: executing $ac_file commands" >&6;}
  ;;
   esac
 
@@ -13987,126 +16666,127 @@ if test "$no_create" != yes; then
   $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5
-$as_echo "===============================================================================" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: jemalloc version   : ${jemalloc_version}" >&5
-$as_echo "jemalloc version   : ${jemalloc_version}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: library revision   : ${rev}" >&5
-$as_echo "library revision   : ${rev}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
-$as_echo "" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CONFIG             : ${CONFIG}" >&5
-$as_echo "CONFIG             : ${CONFIG}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CC                 : ${CC}" >&5
-$as_echo "CC                 : ${CC}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CONFIGURE_CFLAGS   : ${CONFIGURE_CFLAGS}" >&5
-$as_echo "CONFIGURE_CFLAGS   : ${CONFIGURE_CFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: SPECIFIED_CFLAGS   : ${SPECIFIED_CFLAGS}" >&5
-$as_echo "SPECIFIED_CFLAGS   : ${SPECIFIED_CFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: EXTRA_CFLAGS       : ${EXTRA_CFLAGS}" >&5
-$as_echo "EXTRA_CFLAGS       : ${EXTRA_CFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CPPFLAGS           : ${CPPFLAGS}" >&5
-$as_echo "CPPFLAGS           : ${CPPFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CXX                : ${CXX}" >&5
-$as_echo "CXX                : ${CXX}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: CONFIGURE_CXXFLAGS : ${CONFIGURE_CXXFLAGS}" >&5
-$as_echo "CONFIGURE_CXXFLAGS : ${CONFIGURE_CXXFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: SPECIFIED_CXXFLAGS : ${SPECIFIED_CXXFLAGS}" >&5
-$as_echo "SPECIFIED_CXXFLAGS : ${SPECIFIED_CXXFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: EXTRA_CXXFLAGS     : ${EXTRA_CXXFLAGS}" >&5
-$as_echo "EXTRA_CXXFLAGS     : ${EXTRA_CXXFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: LDFLAGS            : ${LDFLAGS}" >&5
-$as_echo "LDFLAGS            : ${LDFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}" >&5
-$as_echo "EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: DSO_LDFLAGS        : ${DSO_LDFLAGS}" >&5
-$as_echo "DSO_LDFLAGS        : ${DSO_LDFLAGS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: LIBS               : ${LIBS}" >&5
-$as_echo "LIBS               : ${LIBS}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: RPATH_EXTRA        : ${RPATH_EXTRA}" >&5
-$as_echo "RPATH_EXTRA        : ${RPATH_EXTRA}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
-$as_echo "" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: XSLTPROC           : ${XSLTPROC}" >&5
-$as_echo "XSLTPROC           : ${XSLTPROC}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: XSLROOT            : ${XSLROOT}" >&5
-$as_echo "XSLROOT            : ${XSLROOT}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
-$as_echo "" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: PREFIX             : ${PREFIX}" >&5
-$as_echo "PREFIX             : ${PREFIX}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: BINDIR             : ${BINDIR}" >&5
-$as_echo "BINDIR             : ${BINDIR}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: DATADIR            : ${DATADIR}" >&5
-$as_echo "DATADIR            : ${DATADIR}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: INCLUDEDIR         : ${INCLUDEDIR}" >&5
-$as_echo "INCLUDEDIR         : ${INCLUDEDIR}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: LIBDIR             : ${LIBDIR}" >&5
-$as_echo "LIBDIR             : ${LIBDIR}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: MANDIR             : ${MANDIR}" >&5
-$as_echo "MANDIR             : ${MANDIR}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
-$as_echo "" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: srcroot            : ${srcroot}" >&5
-$as_echo "srcroot            : ${srcroot}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: abs_srcroot        : ${abs_srcroot}" >&5
-$as_echo "abs_srcroot        : ${abs_srcroot}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: objroot            : ${objroot}" >&5
-$as_echo "objroot            : ${objroot}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: abs_objroot        : ${abs_objroot}" >&5
-$as_echo "abs_objroot        : ${abs_objroot}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: " >&5
-$as_echo "" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PREFIX    : ${JEMALLOC_PREFIX}" >&5
-$as_echo "JEMALLOC_PREFIX    : ${JEMALLOC_PREFIX}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PRIVATE_NAMESPACE" >&5
-$as_echo "JEMALLOC_PRIVATE_NAMESPACE" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result:                    : ${JEMALLOC_PRIVATE_NAMESPACE}" >&5
-$as_echo "                   : ${JEMALLOC_PRIVATE_NAMESPACE}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: install_suffix     : ${install_suffix}" >&5
-$as_echo "install_suffix     : ${install_suffix}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: malloc_conf        : ${config_malloc_conf}" >&5
-$as_echo "malloc_conf        : ${config_malloc_conf}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: documentation      : ${enable_doc}" >&5
-$as_echo "documentation      : ${enable_doc}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: shared libs        : ${enable_shared}" >&5
-$as_echo "shared libs        : ${enable_shared}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: static libs        : ${enable_static}" >&5
-$as_echo "static libs        : ${enable_static}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: autogen            : ${enable_autogen}" >&5
-$as_echo "autogen            : ${enable_autogen}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: debug              : ${enable_debug}" >&5
-$as_echo "debug              : ${enable_debug}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: stats              : ${enable_stats}" >&5
-$as_echo "stats              : ${enable_stats}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: experimetal_smallocx : ${enable_experimental_smallocx}" >&5
-$as_echo "experimetal_smallocx : ${enable_experimental_smallocx}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: prof               : ${enable_prof}" >&5
-$as_echo "prof               : ${enable_prof}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-libunwind     : ${enable_prof_libunwind}" >&5
-$as_echo "prof-libunwind     : ${enable_prof_libunwind}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-libgcc        : ${enable_prof_libgcc}" >&5
-$as_echo "prof-libgcc        : ${enable_prof_libgcc}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: prof-gcc           : ${enable_prof_gcc}" >&5
-$as_echo "prof-gcc           : ${enable_prof_gcc}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: fill               : ${enable_fill}" >&5
-$as_echo "fill               : ${enable_fill}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: utrace             : ${enable_utrace}" >&5
-$as_echo "utrace             : ${enable_utrace}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: xmalloc            : ${enable_xmalloc}" >&5
-$as_echo "xmalloc            : ${enable_xmalloc}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: log                : ${enable_log}" >&5
-$as_echo "log                : ${enable_log}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: lazy_lock          : ${enable_lazy_lock}" >&5
-$as_echo "lazy_lock          : ${enable_lazy_lock}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: cache-oblivious    : ${enable_cache_oblivious}" >&5
-$as_echo "cache-oblivious    : ${enable_cache_oblivious}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: cxx                : ${enable_cxx}" >&5
-$as_echo "cxx                : ${enable_cxx}" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5
-$as_echo "===============================================================================" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5
+printf "%s\n" "===============================================================================" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: jemalloc version   : ${jemalloc_version}" >&5
+printf "%s\n" "jemalloc version   : ${jemalloc_version}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: library revision   : ${rev}" >&5
+printf "%s\n" "library revision   : ${rev}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: " >&5
+printf "%s\n" "" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CONFIG             : ${CONFIG}" >&5
+printf "%s\n" "CONFIG             : ${CONFIG}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CC                 : ${CC}" >&5
+printf "%s\n" "CC                 : ${CC}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CONFIGURE_CFLAGS   : ${CONFIGURE_CFLAGS}" >&5
+printf "%s\n" "CONFIGURE_CFLAGS   : ${CONFIGURE_CFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: SPECIFIED_CFLAGS   : ${SPECIFIED_CFLAGS}" >&5
+printf "%s\n" "SPECIFIED_CFLAGS   : ${SPECIFIED_CFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: EXTRA_CFLAGS       : ${EXTRA_CFLAGS}" >&5
+printf "%s\n" "EXTRA_CFLAGS       : ${EXTRA_CFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CPPFLAGS           : ${CPPFLAGS}" >&5
+printf "%s\n" "CPPFLAGS           : ${CPPFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CXX                : ${CXX}" >&5
+printf "%s\n" "CXX                : ${CXX}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CONFIGURE_CXXFLAGS : ${CONFIGURE_CXXFLAGS}" >&5
+printf "%s\n" "CONFIGURE_CXXFLAGS : ${CONFIGURE_CXXFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: SPECIFIED_CXXFLAGS : ${SPECIFIED_CXXFLAGS}" >&5
+printf "%s\n" "SPECIFIED_CXXFLAGS : ${SPECIFIED_CXXFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: EXTRA_CXXFLAGS     : ${EXTRA_CXXFLAGS}" >&5
+printf "%s\n" "EXTRA_CXXFLAGS     : ${EXTRA_CXXFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: LDFLAGS            : ${LDFLAGS}" >&5
+printf "%s\n" "LDFLAGS            : ${LDFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}" >&5
+printf "%s\n" "EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: DSO_LDFLAGS        : ${DSO_LDFLAGS}" >&5
+printf "%s\n" "DSO_LDFLAGS        : ${DSO_LDFLAGS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: LIBS               : ${LIBS}" >&5
+printf "%s\n" "LIBS               : ${LIBS}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: RPATH_EXTRA        : ${RPATH_EXTRA}" >&5
+printf "%s\n" "RPATH_EXTRA        : ${RPATH_EXTRA}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: " >&5
+printf "%s\n" "" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: XSLTPROC           : ${XSLTPROC}" >&5
+printf "%s\n" "XSLTPROC           : ${XSLTPROC}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: XSLROOT            : ${XSLROOT}" >&5
+printf "%s\n" "XSLROOT            : ${XSLROOT}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: " >&5
+printf "%s\n" "" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: PREFIX             : ${PREFIX}" >&5
+printf "%s\n" "PREFIX             : ${PREFIX}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: BINDIR             : ${BINDIR}" >&5
+printf "%s\n" "BINDIR             : ${BINDIR}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: DATADIR            : ${DATADIR}" >&5
+printf "%s\n" "DATADIR            : ${DATADIR}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: INCLUDEDIR         : ${INCLUDEDIR}" >&5
+printf "%s\n" "INCLUDEDIR         : ${INCLUDEDIR}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: LIBDIR             : ${LIBDIR}" >&5
+printf "%s\n" "LIBDIR             : ${LIBDIR}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: MANDIR             : ${MANDIR}" >&5
+printf "%s\n" "MANDIR             : ${MANDIR}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: " >&5
+printf "%s\n" "" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: srcroot            : ${srcroot}" >&5
+printf "%s\n" "srcroot            : ${srcroot}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: abs_srcroot        : ${abs_srcroot}" >&5
+printf "%s\n" "abs_srcroot        : ${abs_srcroot}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: objroot            : ${objroot}" >&5
+printf "%s\n" "objroot            : ${objroot}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: abs_objroot        : ${abs_objroot}" >&5
+printf "%s\n" "abs_objroot        : ${abs_objroot}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: " >&5
+printf "%s\n" "" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PREFIX    : ${JEMALLOC_PREFIX}" >&5
+printf "%s\n" "JEMALLOC_PREFIX    : ${JEMALLOC_PREFIX}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: JEMALLOC_PRIVATE_NAMESPACE" >&5
+printf "%s\n" "JEMALLOC_PRIVATE_NAMESPACE" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result:                    : ${JEMALLOC_PRIVATE_NAMESPACE}" >&5
+printf "%s\n" "                   : ${JEMALLOC_PRIVATE_NAMESPACE}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: install_suffix     : ${install_suffix}" >&5
+printf "%s\n" "install_suffix     : ${install_suffix}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: malloc_conf        : ${config_malloc_conf}" >&5
+printf "%s\n" "malloc_conf        : ${config_malloc_conf}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: documentation      : ${enable_doc}" >&5
+printf "%s\n" "documentation      : ${enable_doc}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: shared libs        : ${enable_shared}" >&5
+printf "%s\n" "shared libs        : ${enable_shared}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: static libs        : ${enable_static}" >&5
+printf "%s\n" "static libs        : ${enable_static}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: autogen            : ${enable_autogen}" >&5
+printf "%s\n" "autogen            : ${enable_autogen}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: debug              : ${enable_debug}" >&5
+printf "%s\n" "debug              : ${enable_debug}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: stats              : ${enable_stats}" >&5
+printf "%s\n" "stats              : ${enable_stats}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: experimental_smallocx : ${enable_experimental_smallocx}" >&5
+printf "%s\n" "experimental_smallocx : ${enable_experimental_smallocx}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: prof               : ${enable_prof}" >&5
+printf "%s\n" "prof               : ${enable_prof}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: prof-libunwind     : ${enable_prof_libunwind}" >&5
+printf "%s\n" "prof-libunwind     : ${enable_prof_libunwind}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: prof-libgcc        : ${enable_prof_libgcc}" >&5
+printf "%s\n" "prof-libgcc        : ${enable_prof_libgcc}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: prof-gcc           : ${enable_prof_gcc}" >&5
+printf "%s\n" "prof-gcc           : ${enable_prof_gcc}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: fill               : ${enable_fill}" >&5
+printf "%s\n" "fill               : ${enable_fill}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: utrace             : ${enable_utrace}" >&5
+printf "%s\n" "utrace             : ${enable_utrace}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: xmalloc            : ${enable_xmalloc}" >&5
+printf "%s\n" "xmalloc            : ${enable_xmalloc}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: log                : ${enable_log}" >&5
+printf "%s\n" "log                : ${enable_log}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: lazy_lock          : ${enable_lazy_lock}" >&5
+printf "%s\n" "lazy_lock          : ${enable_lazy_lock}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cache-oblivious    : ${enable_cache_oblivious}" >&5
+printf "%s\n" "cache-oblivious    : ${enable_cache_oblivious}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cxx                : ${enable_cxx}" >&5
+printf "%s\n" "cxx                : ${enable_cxx}" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ===============================================================================" >&5
+printf "%s\n" "===============================================================================" >&6; }
+
diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h
index d495e9f84..2cd7e7ce9 100644
--- a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h
+++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h
@@ -340,22 +340,21 @@ imalloc_fastpath(size_t size, void *(fallback_alloc)(size_t)) {
 JEMALLOC_ALWAYS_INLINE int
 iget_defrag_hint(tsdn_t *tsdn, void* ptr) {
 	int defrag = 0;
-	rtree_ctx_t rtree_ctx_fallback;
-	rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
-	szind_t szind;
-	bool is_slab;
-	rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx, (uintptr_t)ptr, true, &szind, &is_slab);
-	if (likely(is_slab)) {
+	emap_alloc_ctx_t alloc_ctx;
+	emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, &alloc_ctx);
+	if (likely(alloc_ctx.slab)) {
 		/* Small allocation. */
-		extent_t *slab = iealloc(tsdn, ptr);
-		arena_t *arena = extent_arena_get(slab);
-		szind_t binind = extent_szind_get(slab);
-		unsigned binshard = extent_binshard_get(slab);
-		bin_t *bin = &arena->bins[binind].bin_shards[binshard];
+		edata_t *slab = emap_edata_lookup(tsdn, &arena_emap_global, ptr);
+		arena_t *arena = arena_get_from_edata(slab);
+		szind_t binind = edata_szind_get(slab);
+		unsigned binshard = edata_binshard_get(slab);
+		bin_t *bin = arena_get_bin(arena, binind, binshard);
 		malloc_mutex_lock(tsdn, &bin->lock);
+		arena_dalloc_bin_locked_info_t info;
+		arena_dalloc_bin_locked_begin(&info, binind);
 		/* Don't bother moving allocations from the slab currently used for new allocations */
 		if (slab != bin->slabcur) {
-			int free_in_slab = extent_nfree_get(slab);
+			int free_in_slab = edata_nfree_get(slab);
 			if (free_in_slab) {
 				const bin_info_t *bin_info = &bin_infos[binind];
 				/* Find number of non-full slabs and the number of regs in them */
@@ -363,14 +362,14 @@ iget_defrag_hint(tsdn_t *tsdn, void* ptr) {
 				size_t curregs = 0;
 				/* Run on all bin shards (usually just one) */
 				for (uint32_t i=0; i< bin_info->n_shards; i++) {
-					bin_t *bb = &arena->bins[binind].bin_shards[i];
+					bin_t *bb = arena_get_bin(arena, binind, i);
 					curslabs += bb->stats.nonfull_slabs;
 					/* Deduct the regs in full slabs (they're not part of the game) */
 					unsigned long full_slabs = bb->stats.curslabs - bb->stats.nonfull_slabs;
 					curregs += bb->stats.curregs - full_slabs * bin_info->nregs;
 					if (bb->slabcur) {
 						/* Remove slabcur from the overall utilization (not a candidate to nove from) */
-						curregs -= bin_info->nregs - extent_nfree_get(bb->slabcur);
+						curregs -= bin_info->nregs - edata_nfree_get(bb->slabcur);
 						curslabs -= 1;
 					}
 				}
@@ -383,6 +382,7 @@ iget_defrag_hint(tsdn_t *tsdn, void* ptr) {
 				defrag = (bin_info->nregs - free_in_slab) * curslabs <= curregs + curregs / 8;
 			}
 		}
+		arena_dalloc_bin_locked_finish(tsdn, arena, bin, &info);
 		malloc_mutex_unlock(tsdn, &bin->lock);
 	}
 	return defrag;