102 files changed, 245 insertions, 68 deletions
diff --git a/ChangeLog b/ChangeLog
index 7a90117794..f661730dbc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,71 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure.in: Moved to ...
+	* configure.ac: ... here. Change reference to configure.in
+	to configure.ac.
+	* sysdeps/arm/preconfigure.ac: ... here.
+	configure.in to configure.ac.
+	* sysdeps/gnu/configure.in: Moved to ...
+	* sysdeps/gnu/configure.ac: ... here.
+	* sysdeps/i386/configure.in: Moved to ...
+	* sysdeps/i386/configure.ac: ... here.
+	* sysdeps/ieee754/ldbl-opt/configure.in: Moved to ...
+	* sysdeps/ieee754/ldbl-opt/configure.ac: ... here.
+	* sysdeps/mach/configure.in: Moved to ...
+	* sysdeps/mach/configure.ac: ... here.
+	* sysdeps/mach/hurd/configure.in: Moved to ...
+	* sysdeps/mach/hurd/configure.ac: ... here.
+	* sysdeps/powerpc/configure.in: Moved to ...
+	* sysdeps/powerpc/configure.ac: ... here.
+	* sysdeps/powerpc/powerpc32/configure.in: Moved to ...
+	* sysdeps/powerpc/powerpc32/configure.ac: ... here.
+	* sysdeps/powerpc/powerpc64/configure.in: Moved to ...
+	* sysdeps/powerpc/powerpc64/configure.ac: ... here.
+	* sysdeps/s390/s390-32/configure.in: Moved to ...
+	* sysdeps/s390/s390-32/configure.ac: ... here.
+	* sysdeps/s390/s390-64/configure.in: Moved to ...
+	* sysdeps/s390/s390-64/configure.ac: ... here.
+	* sysdeps/sh/configure.in: Moved to ...
+	* sysdeps/sh/configure.ac: ... here.
+	* sysdeps/sparc/configure.in: Moved to ...
+	* sysdeps/sparc/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/powerpc/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/powerpc/configure.ac: ... here.
+	* sysdeps/x86_64/configure.in: Moved to ...
+	* sysdeps/x86_64/configure.ac: ... here.
+	* sysdeps/x86_64/preconfigure.in: Moved to ...
+	* sysdeps/x86_64/preconfigure.ac: ... here.
+	* aclocal.m4: Change reference to configure.in to configure.ac.
+	* config.h.in: Likewise.
+	* manual/install.texi: Likewise.
+	* manual/maint.texi: Likewise.
+	* Makefile: Likewise.
+	* malloc/Makefile: Likewise.
+	* nscd/Makefile: Likewise.
+	* Makeconfig: Change reference to configure.in and
+	preconfigure.in to configure.ac and preconfigure.ac
+	respectively.
+	* INSTALL: Regenerated.
+	* configure: Likewise.
+	* sysdeps/gnu/configure: Likewise.
+	* sysdeps/i386/configure: Likewise.
+	* sysdeps/ieee754/ldbl-opt/configure: Likewise.
+	* sysdeps/mach/configure: Likewise.
+	* sysdeps/mach/hurd/configure: Likewise.
+	* sysdeps/powerpc/configure: Likewise.
+	* sysdeps/powerpc/powerpc32/configure: Likewise.
+	* sysdeps/powerpc/powerpc64/configure: Likewise.
+	* sysdeps/s390/s390-32/configure: Likewise.
+	* sysdeps/s390/s390-64/configure: Likewise.
+	* sysdeps/sh/configure: Likewise.
+	* sysdeps/sparc/configure: Likewise.
+	* sysdeps/unix/sysv/linux/configure: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/configure: Likewise.
+	* sysdeps/x86_64/configure: Likewise.
+	* sysdeps/x86_64/preconfigure: Likewise.
+
 2013-10-29  Andreas Schwab  <schwab@suse.de>
 
 	* stdio-common/Makefile (tst-swscanf-ENV): Define.
diff --git a/INSTALL b/INSTALL
index 7aa52183de..348f948750 100644
--- a/INSTALL
+++ b/INSTALL
@@ -368,7 +368,7 @@ build the GNU C Library:
      should definitely upgrade `sed'.
 
 
-If you change any of the `configure.in' files you will also need
+If you change any of the `configure.ac' files you will also need
 
    * GNU `autoconf' 2.53 or higher
 
diff --git a/Makeconfig b/Makeconfig
index a3d3e70150..66189877b1 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -88,16 +88,16 @@ $(common-objpfx)config.status: $(..)version.h $(..)configure \
 					 $(wildcard $(dir)/Implies) \
 					 $(patsubst %.in,%,\
 						    $(firstword $(wildcard \
- $(addprefix $(dir)/,configure configure.in))))) \
+ $(addprefix $(dir)/,configure configure.ac))))) \
 			       $(patsubst %.in,%,\
- $(wildcard $(..)sysdeps/*/preconfigure $(..)sysdeps/*/preconfigure.in)) \
+ $(wildcard $(..)sysdeps/*/preconfigure $(..)sysdeps/*/preconfigure.ac)) \
 			       $(patsubst %.in,%,\
 					  $(foreach add-on,$(add-ons),\
 						    $(firstword $(wildcard \
  $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
-	     configure configure.in))) \
+	     configure configure.ac))) \
  $(wildcard $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
-			sysdeps/*/preconfigure sysdeps/*/preconfigure.in))))
+			sysdeps/*/preconfigure sysdeps/*/preconfigure.ac))))
 	@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
 	 echo The GNU C library has not been configured. >&2; \
 	 echo Run \`configure\' to configure it before building. >&2; \
diff --git a/Makefile b/Makefile
index 302a300d48..ccba09a6ad 100644
--- a/Makefile
+++ b/Makefile
@@ -38,9 +38,9 @@ chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
 mv -f $@.new $@
 endef
 
-configure: configure.in aclocal.m4; $(autoconf-it)
-%/configure: %/configure.in aclocal.m4; $(autoconf-it)
-%/preconfigure: %/preconfigure.in aclocal.m4; $(autoconf-it)
+configure: configure.ac aclocal.m4; $(autoconf-it)
+%/configure: %/configure.ac aclocal.m4; $(autoconf-it)
+%/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
 
 endif # $(AUTOCONF) = no
 
diff --git a/aclocal.m4 b/aclocal.m4
index 64351d0a00..bc48586dc2 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -9,8 +9,8 @@ m4_defn([AC_AUTOCONF_VERSION])
 ), [63])])dnl
 dnl
 dnl We define the macro GLIBC_PROVIDES to do an AC_PROVIDE for each macro
-dnl which appears in configure.in before the sysdep configure scripts are run.
-dnl Each sysdep configure.in does GLIBC_PROVIDES first, to avoid any
+dnl which appears in configure.ac before the sysdep configure scripts are run.
+dnl Each sysdep configure.ac does GLIBC_PROVIDES first, to avoid any
 dnl AC_REQUIREs or AC_BEFOREs duplicating their code.
 dnl
 define([GLIBC_PROVIDES], [dnl
@@ -39,7 +39,7 @@ dnl Ripped out of AS_INIT, which does more cruft we do not want.
 m4_wrap([m4_divert_pop([BODY])[]])
 m4_divert_push([BODY])[]dnl
 dnl End of ripped out of AS_INIT.
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 define([_AC_LANG], [C])dnl
 ])dnl
 dnl
diff --git a/config.h.in b/config.h.in
index 0ee1ec6f56..f6151c55bf 100644
--- a/config.h.in
+++ b/config.h.in
@@ -201,13 +201,13 @@
    They are used only in miscellaneous generator programs, not
    in compiling libc itself.   */
 
-/* sysdeps/generic/configure.in */
+/* sysdeps/generic/configure.ac */
 #undef	HAVE_PSIGNAL
 
-/* sysdeps/unix/configure.in */
+/* sysdeps/unix/configure.ac */
 #undef	HAVE_STRERROR
 
-/* sysdeps/unix/common/configure.in */
+/* sysdeps/unix/common/configure.ac */
 #undef	HAVE_SYS_SIGLIST
 #undef	HAVE__SYS_SIGLIST
 #undef	HAVE__CTYPE_
diff --git a/configure b/configure
index 5e2f4d0dd2..f382138352 100755
--- a/configure
+++ b/configure
@@ -5171,7 +5171,7 @@ $as_echo_n "checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works... " >&6; }
 if ${libc_cv_autoconf_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-    if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then
+    if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then
     libc_cv_autoconf_works=yes
   else
     libc_cv_autoconf_works=no
diff --git a/configure.in b/configure.ac
index a7f9881349..49b70fd3a6 100644
--- a/configure.in
+++ b/configure.ac
@@ -1010,7 +1010,7 @@ xno|x|x:) AUTOCONF=no ;;
 *)
   AC_CACHE_CHECK(dnl
 whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl
-  if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then
+  if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then
     libc_cv_autoconf_works=yes
   else
     libc_cv_autoconf_works=no
@@ -2155,7 +2155,7 @@ AC_SUBST(static_nss)
 
 AC_SUBST(DEFINES)
 
-dnl See sysdeps/mach/configure.in for this variable.
+dnl See sysdeps/mach/configure.ac for this variable.
 AC_SUBST(mach_interface_list)
 
 VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h`
diff --git a/libidn/ChangeLog b/libidn/ChangeLog
index 46ebd1fa95..e8130bb5b4 100644
--- a/libidn/ChangeLog
+++ b/libidn/ChangeLog
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure.in: Moved to ...
+	* configure.ac: ... here.
+	* configure: Regenerated.
+
 2013-08-29   Ondřej Bílka  <neleai@seznam.cz>
 
 	* stringprep.c: Fix typos.
diff --git a/libidn/configure b/libidn/configure
index 39ed163520..8195663d96 100644
--- a/libidn/configure
+++ b/libidn/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 libc_add_on_canonical=
 
diff --git a/libidn/configure.in b/libidn/configure.ac
index 16740ffb92..16740ffb92 100644
--- a/libidn/configure.in
+++ b/libidn/configure.ac
diff --git a/malloc/Makefile b/malloc/Makefile
index d482879046..84339d13cc 100644
--- a/malloc/Makefile
+++ b/malloc/Makefile
@@ -78,7 +78,7 @@ install-bin-script += memusage
 generated += memusagestat memusage
 extra-objs += memusagestat.o
 
-# The configure.in check for libgd and its headers did not use $SYSINCLUDES.
+# The configure.ac check for libgd and its headers did not use $SYSINCLUDES.
 # The directory specified by --with-headers usually contains only the basic
 # kernel interface headers, not something like libgd.  So the simplest thing
 # is to presume that the standard system headers will be ok for this file.
diff --git a/manual/install.texi b/manual/install.texi
index 4ca7b1a1ab..aaf27c9e4a 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -413,7 +413,7 @@ should definitely upgrade @code{sed}.
 @end itemize
 
 @noindent
-If you change any of the @file{configure.in} files you will also need
+If you change any of the @file{configure.ac} files you will also need
 
 @itemize @bullet
 @item
diff --git a/manual/maint.texi b/manual/maint.texi
index 0f4b959815..659ceae011 100644
--- a/manual/maint.texi
+++ b/manual/maint.texi
@@ -316,7 +316,7 @@ This file is a shell script fragment to be run at configuration time.
 The top-level @file{configure} script uses the shell @code{.} command to
 read the @file{configure} file in each system-dependent directory
 chosen, in order.  The @file{configure} files are often generated from
-@file{configure.in} files using Autoconf.
+@file{configure.ac} files using Autoconf.
 
 A system-dependent @file{configure} script will usually add things to
 the shell variables @samp{DEFS} and @samp{config_vars}; see the
@@ -329,14 +329,14 @@ shell variable @w{@samp{with_@var{package}}} (with any dashes in
 just @w{@samp{--with-@var{package}}} (no argument), then it sets
 @w{@samp{with_@var{package}}} to @samp{yes}.
 
-@item configure.in
+@item configure.ac
 
 This file is an Autoconf input fragment to be processed into the file
 @file{configure} in this subdirectory.  @xref{Introduction,,,
 autoconf.info, Autoconf: Generating Automatic Configuration Scripts},
 for a description of Autoconf.  You should write either @file{configure}
-or @file{configure.in}, but not both.  The first line of
-@file{configure.in} should invoke the @code{m4} macro
+or @file{configure.ac}, but not both.  The first line of
+@file{configure.ac} should invoke the @code{m4} macro
 @samp{GLIBC_PROVIDES}.  This macro does several @code{AC_PROVIDE} calls
 for Autoconf macros which are used by the top-level @file{configure}
 script; without this, those macros might be invoked again unnecessarily
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index a08915382e..9d04a7b3fa 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,12 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/pthread/configure.in: Moved to ...
+	* sysdeps/pthread/configure.ac: ... here.
+	* sysdeps/x86_64/configure.in: Moved to ...
+	* sysdeps/x86_64/configure.ac: ... here.
+	* sysdeps/pthread/configure: Regenerated.
+	* sysdeps/x86_64/configure: Likewise.
+
 2013-10-04  Maciej W. Rozycki  <macro@codesourcery.com>
 
 	* tst-mutex8.c (check_type) [ENABLE_PI]: Handle ENOTSUP failure
diff --git a/nptl/sysdeps/pthread/configure b/nptl/sysdeps/pthread/configure
index 7962ed6fcf..239a039e3a 100644
--- a/nptl/sysdeps/pthread/configure
+++ b/nptl/sysdeps/pthread/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 if test "x$libc_cv_gcc___thread" != xyes; then
   as_fn_error $? "compiler support for __thread is required" "$LINENO" 5
diff --git a/nptl/sysdeps/pthread/configure.in b/nptl/sysdeps/pthread/configure.ac
index 413af96799..413af96799 100644
--- a/nptl/sysdeps/pthread/configure.in
+++ b/nptl/sysdeps/pthread/configure.ac
diff --git a/nptl/sysdeps/x86_64/configure b/nptl/sysdeps/x86_64/configure
index 8e5bcacafd..c9dea5a7a1 100644
--- a/nptl/sysdeps/x86_64/configure
+++ b/nptl/sysdeps/x86_64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/i386.
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for .cfi_personality and .cfi_lsda pseudo-ops" >&5
diff --git a/nptl/sysdeps/x86_64/configure.in b/nptl/sysdeps/x86_64/configure.ac
index 0ba0cc3726..0ba0cc3726 100644
--- a/nptl/sysdeps/x86_64/configure.in
+++ b/nptl/sysdeps/x86_64/configure.ac
diff --git a/nscd/Makefile b/nscd/Makefile
index 7b36cc9820..b8498da886 100644
--- a/nscd/Makefile
+++ b/nscd/Makefile
@@ -60,7 +60,7 @@ endif
 nscd-modules += selinux
 selinux-LIBS := -lselinux $(libaudit) $(libcap)
 
-# The configure.in check for libselinux and its headers did not use
+# The configure.ac check for libselinux and its headers did not use
 # $SYSINCLUDES.  The directory specified by --with-headers usually
 # contains only the basic kernel interface headers, not something like
 # libselinux.  So the simplest thing is to presume that the standard
diff --git a/ports/ChangeLog b/ports/ChangeLog
index fcb58cc0a5..47294712fc 100644
--- a/ports/ChangeLog
+++ b/ports/ChangeLog
@@ -1,3 +1,8 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* README: Change references to preconfigure.in to
+	preconfigure.ac.
+
 2013-01-02  Joseph Myers  <joseph@codesourcery.com>
 
 	* README: Update copyright dates in example.
diff --git a/ports/ChangeLog.aarch64 b/ports/ChangeLog.aarch64
index cebf5055d5..1fd96eed7a 100644
--- a/ports/ChangeLog.aarch64
+++ b/ports/ChangeLog.aarch64
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/aarch64/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/aarch64/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/aarch64/configure: Regenerated.
+
 2013-09-30  Andrew Pinski <andrew.pinski@caviumnetworks.com>
 
 	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (SYSCALL_ERROR_HANDLER):
diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index 68d430dc3e..07f5dfb47e 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,3 +1,12 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/alpha/configure.in: Moved to ...
+	* sysdeps/alpha/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/alpha/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/alpha/configure.ac: ... here.
+	* sysdeps/alpha/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/alpha/configure: Likewise.
+
 2013-10-12   Yuri Chornoivan <yurchor@ukr.net>
 
 	* sysdeps/unix/sysv/linux/alpha/nptl/pt-vfork.S: Fix typos.
diff --git a/ports/ChangeLog.am33 b/ports/ChangeLog.am33
index 79bcc0a106..15b7a1b300 100644
--- a/ports/ChangeLog.am33
+++ b/ports/ChangeLog.am33
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/am33/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/am33/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/am33/configure: Regenerated.
+
 2013-08-29   Ondřej Bílka  <neleai@seznam.cz>
 
 	* sysdeps/unix/sysv/linux/am33/bits/fcntl.h: Fix typos.
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm
index 6707d2ef3d..0dfe5c7884 100644
--- a/ports/ChangeLog.arm
+++ b/ports/ChangeLog.arm
@@ -1,3 +1,23 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/arm/configure.in: Moved to ...
+	* sysdeps/arm/configure.ac: ... here.
+	* sysdeps/arm/preconfigure.in: Moved to ...
+	* sysdeps/arm/preconfigure.ac: ... here. Change reference to
+	configure.in to configure.ac.
+	* sysdeps/arm/preconfigure: Regenerated.
+	* sysdeps/arm/armv7/configure.in: Moved to ...
+	* sysdeps/arm/armv7/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/arm/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/arm/configure.ac: ... here. Change
+	reference to preconfigure.in to preconfigure.ac.
+	* sysdeps/unix/sysv/linux/arm/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/arm/nptl/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/arm/nptl/configure.ac: ... here.
+	* sysdeps/arm/configure: Regenerated.
+	* sysdeps/sysdeps/arm/armv7/configure: Likewise.
+	* sysdeps/unix/sysv/linux/arm/nptl/configure: Likewise.
+
 2013-10-04  Will Newton  <will.newton@linaro.org>
 
 	* sysdeps/arm/__longjmp.S (NO_THUMB): Remove define.
diff --git a/ports/ChangeLog.hppa b/ports/ChangeLog.hppa
index 950a1673e4..b7c82131d9 100644
--- a/ports/ChangeLog.hppa
+++ b/ports/ChangeLog.hppa
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/hppa/configure.in: Moved to ...
+	* sysdeps/hppa/configure.ac: ... here.
+	* sysdeps/hppa/configure: Regenerated.
+
 2013-09-11  Andreas Schwab  <schwab@suse.de>
 
 	* sysdeps/unix/sysv/linux/hppa/bits/fcntl.h (__O_TMPFILE): Define.
diff --git a/ports/ChangeLog.ia64 b/ports/ChangeLog.ia64
index e79b03fb3b..1eb0f389c2 100644
--- a/ports/ChangeLog.ia64
+++ b/ports/ChangeLog.ia64
@@ -1,3 +1,12 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/ia64/configure.in: Moved to ...
+	* sysdeps/ia64/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/ia64/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/ia64/configure.ac: ... here.
+	* sysdeps/ia64/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/ia64/configure: Likewise.
+
 2013-10-04  Alan Modra  <amodra@gmail.com>
 
 	* sysdeps/ia64/fpu/printf_fphex.c: Adjust for fpnum change.
diff --git a/ports/ChangeLog.m68k b/ports/ChangeLog.m68k
index 5bcd94541b..327216f5f4 100644
--- a/ports/ChangeLog.m68k
+++ b/ports/ChangeLog.m68k
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/m68k/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/m68k/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/m68k/configure: Regenerated.
+
 2013-10-08  Andreas Schwab  <schwab@suse.de>
 
 	* sysdeps/m68k/start.S [SHARED]: Use PIC.
diff --git a/ports/ChangeLog.microblaze b/ports/ChangeLog.microblaze
index 92faa04440..d792effa43 100644
--- a/ports/ChangeLog.microblaze
+++ b/ports/ChangeLog.microblaze
@@ -1,3 +1,9 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/microblaze/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/microblaze/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/microblaze/configure: Regenerated.
+
 2013-06-15  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
 	* sysdeps/unix/sysv/linux/microblaze/nptl/libpthread.abilist:
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index eaa6ade598..3382d838fe 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,15 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/mips/configure.in: Moved to ...
+	* sysdeps/mips/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/mips/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/mips/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/mips/mips64/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/mips/mips64/configure.ac: ... here.
+	* sysdeps/mips/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/mips/configure: Likewise.
+	* sysdeps/unix/sysv/linux/mips/mips64/configure: Likewise.
+
 2013-09-26  Steve Ellcey  <sellcey@mips.com>
 
 	[BZ #15632]
diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile
index dc2e7e412d..a0ec89cac3 100644
--- a/ports/ChangeLog.tile
+++ b/ports/ChangeLog.tile
@@ -1,3 +1,12 @@
+2013-10-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/tile/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/tile/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/tile/tilegx/configure.in: Moved to ...
+	* sysdeps/unix/sysv/linux/tile/tilegx/configure.ac: ... here.
+	* sysdeps/unix/sysv/linux/tile/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/tile/tilegx/configure: Likewise.
+
 2013-09-22  Carlos O'Donell  <carlos@redhat.com>
 
 	[BZ #15754]
diff --git a/ports/README b/ports/README
index d16b0f0f51..2c73b1e803 100644
--- a/ports/README
+++ b/ports/README
@@ -24,7 +24,7 @@ rather than the generic ones here.
 The real source code for any ports is found in the sysdeps/ subdirectories.
 These should be exactly what would go into the main libc source tree if you
 were to incorporate it directly.  The only exceptions are the files
-sysdeps/*/preconfigure and sysdeps/*/preconfigure.in; these are fragments
+sysdeps/*/preconfigure and sysdeps/*/preconfigure.ac; these are fragments
 used by this add-on's configure fragment.  The purpose of these is to set
 $base_machine et al when the main libc configure's defaults are not right
 for some machine.  Everything else can and should be done from a normal
@@ -32,7 +32,7 @@ sysdeps/.../configure fragment that is used only when the configuration
 selects that sysdeps subdirectory.  Each port that requires some special
 treatment before the sysdeps directory list is calculated, should add a
 sysdeps/CPU/preconfigure file; this can either be written by hand or
-generated by Autoconf from sysdeps/CPU/preconfigure.in, and follow the
+generated by Autoconf from sysdeps/CPU/preconfigure.ac, and follow the
 rules for glibc add-on configure fragments.  No preconfigure file should do
 anything on an unrelated configuration, so that disparate ports can be put
 into a single add-on without interfering with each other.
diff --git a/ports/sysdeps/alpha/configure b/ports/sysdeps/alpha/configure
index 9c03229df2..0403c63fe6 100644
--- a/ports/sysdeps/alpha/configure
+++ b/ports/sysdeps/alpha/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/alpha.
 
 # With required gcc+binutils, we can always access static and hidden
diff --git a/ports/sysdeps/alpha/configure.in b/ports/sysdeps/alpha/configure.ac
index eadc57afe3..eadc57afe3 100644
--- a/ports/sysdeps/alpha/configure.in
+++ b/ports/sysdeps/alpha/configure.ac
diff --git a/ports/sysdeps/arm/armv7/configure b/ports/sysdeps/arm/armv7/configure
index a879ffb5a7..46e5d52df4 100755..100644
--- a/ports/sysdeps/arm/armv7/configure
+++ b/ports/sysdeps/arm/armv7/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/arm/armv7.
 
 # We need binutils 2.21 to ensure that NEON alignments are assembled correctly.
diff --git a/ports/sysdeps/arm/armv7/configure.in b/ports/sysdeps/arm/armv7/configure.ac
index 01e93ecd36..01e93ecd36 100644
--- a/ports/sysdeps/arm/armv7/configure.in
+++ b/ports/sysdeps/arm/armv7/configure.ac
diff --git a/ports/sysdeps/arm/configure b/ports/sysdeps/arm/configure
index b84b3f69a9..d79ef76ec9 100644
--- a/ports/sysdeps/arm/configure
+++ b/ports/sysdeps/arm/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/arm.
 
 #AC_DEFINE(PI_STATIC_AND_HIDDEN)
diff --git a/ports/sysdeps/arm/configure.in b/ports/sysdeps/arm/configure.ac
index d66500b3fd..d66500b3fd 100644
--- a/ports/sysdeps/arm/configure.in
+++ b/ports/sysdeps/arm/configure.ac
diff --git a/ports/sysdeps/arm/preconfigure b/ports/sysdeps/arm/preconfigure
index 908cd34303..b3124edae2 100644
--- a/ports/sysdeps/arm/preconfigure
+++ b/ports/sysdeps/arm/preconfigure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local preconfigure fragment for sysdeps/arm
 
 case "$machine" in
@@ -8,7 +8,7 @@ arm*)
     # If the compiler enables unwind tables by default, this causes
     # problems with undefined symbols in -nostdlib link tests.  To
     # avoid this, add -fno-unwind-tables here and remove it in
-    # sysdeps/unix/sysv/linux/arm/configure.in after those tests have
+    # sysdeps/unix/sysv/linux/arm/configure.ac after those tests have
     # been run.
     if test "${CFLAGS+set}" != "set"; then
       CFLAGS="-g -O2"
diff --git a/ports/sysdeps/arm/preconfigure.in b/ports/sysdeps/arm/preconfigure.ac
index f8357955eb..39c86218aa 100644
--- a/ports/sysdeps/arm/preconfigure.in
+++ b/ports/sysdeps/arm/preconfigure.ac
@@ -8,7 +8,7 @@ arm*)
     # If the compiler enables unwind tables by default, this causes
     # problems with undefined symbols in -nostdlib link tests.  To
     # avoid this, add -fno-unwind-tables here and remove it in
-    # sysdeps/unix/sysv/linux/arm/configure.in after those tests have
+    # sysdeps/unix/sysv/linux/arm/configure.ac after those tests have
     # been run.
     if test "${CFLAGS+set}" != "set"; then
       CFLAGS="-g -O2"
diff --git a/ports/sysdeps/hppa/configure b/ports/sysdeps/hppa/configure
index 762b668f48..d78e1bcd64 100644
--- a/ports/sysdeps/hppa/configure
+++ b/ports/sysdeps/hppa/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler line separator" >&5
 $as_echo_n "checking for assembler line separator... " >&6; }
diff --git a/ports/sysdeps/hppa/configure.in b/ports/sysdeps/hppa/configure.ac
index 40f33603e3..40f33603e3 100644
--- a/ports/sysdeps/hppa/configure.in
+++ b/ports/sysdeps/hppa/configure.ac
diff --git a/ports/sysdeps/ia64/configure b/ports/sysdeps/ia64/configure
index e1fe62d8c5..66b9bac153 100644
--- a/ports/sysdeps/ia64/configure
+++ b/ports/sysdeps/ia64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/ia64.
 
 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/ports/sysdeps/ia64/configure.in b/ports/sysdeps/ia64/configure.ac
index 4ad04ff2f7..4ad04ff2f7 100644
--- a/ports/sysdeps/ia64/configure.in
+++ b/ports/sysdeps/ia64/configure.ac
diff --git a/ports/sysdeps/mips/configure b/ports/sysdeps/mips/configure
index de8092c970..f3f5d2e00d 100644
--- a/ports/sysdeps/mips/configure
+++ b/ports/sysdeps/mips/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/mips.
 
 
diff --git a/ports/sysdeps/mips/configure.in b/ports/sysdeps/mips/configure.ac
index bcbdaffd9f..bcbdaffd9f 100644
--- a/ports/sysdeps/mips/configure.in
+++ b/ports/sysdeps/mips/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/configure b/ports/sysdeps/unix/sysv/linux/aarch64/configure
index 6b2608acd7..20593c7bb0 100644
--- a/ports/sysdeps/unix/sysv/linux/aarch64/configure
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/aarch64.
 
 arch_minimum_kernel=3.7.0
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/configure.in b/ports/sysdeps/unix/sysv/linux/aarch64/configure.ac
index b090702134..b090702134 100644
--- a/ports/sysdeps/unix/sysv/linux/aarch64/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/configure b/ports/sysdeps/unix/sysv/linux/alpha/configure
index b5df524c1c..9afb5874cb 100644
--- a/ports/sysdeps/unix/sysv/linux/alpha/configure
+++ b/ports/sysdeps/unix/sysv/linux/alpha/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/alpha
 
 # We did historically export the unwinder from glibc.
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/configure.in b/ports/sysdeps/unix/sysv/linux/alpha/configure.ac
index a8b6996657..a8b6996657 100644
--- a/ports/sysdeps/unix/sysv/linux/alpha/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/alpha/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/am33/configure b/ports/sysdeps/unix/sysv/linux/am33/configure
index 870c6a7929..c916a321ca 100644
--- a/ports/sysdeps/unix/sysv/linux/am33/configure
+++ b/ports/sysdeps/unix/sysv/linux/am33/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for am33/sysdeps/unix/sysv/linux/am33
 
 arch_minimum_kernel=2.6.25
diff --git a/ports/sysdeps/unix/sysv/linux/am33/configure.in b/ports/sysdeps/unix/sysv/linux/am33/configure.ac
index 43e33f74ca..43e33f74ca 100644
--- a/ports/sysdeps/unix/sysv/linux/am33/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/am33/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/arm/configure b/ports/sysdeps/unix/sysv/linux/arm/configure
index f66b158289..71eb195942 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/configure
+++ b/ports/sysdeps/unix/sysv/linux/arm/configure
@@ -1,6 +1,6 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/arm.
 
 libc_cv_gcc_unwind_find_fde=no
-# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.in.
+# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.ac.
 CFLAGS=${CFLAGS% -fno-unwind-tables}
diff --git a/ports/sysdeps/unix/sysv/linux/arm/configure.in b/ports/sysdeps/unix/sysv/linux/arm/configure.ac
index 8fffe94051..8e4e20d2b8 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/arm/configure.ac
@@ -2,5 +2,5 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 # Local configure fragment for sysdeps/unix/sysv/linux/arm.
 
 libc_cv_gcc_unwind_find_fde=no
-# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.in.
+# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.ac.
 CFLAGS=${CFLAGS% -fno-unwind-tables}
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/configure b/ports/sysdeps/unix/sysv/linux/arm/nptl/configure
index 518269913a..a8c34fa3e4 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/configure
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 libc_cv_gcc_exceptions=yes
 exceptions=-fexceptions
diff --git a/ports/sysdeps/unix/sysv/linux/arm/nptl/configure.in b/ports/sysdeps/unix/sysv/linux/arm/nptl/configure.ac
index 22f6f4b8f2..22f6f4b8f2 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/configure b/ports/sysdeps/unix/sysv/linux/ia64/configure
index 71323718af..1d4e5d18d6 100644
--- a/ports/sysdeps/unix/sysv/linux/ia64/configure
+++ b/ports/sysdeps/unix/sysv/linux/ia64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/ia64
 
 ldd_rewrite_script=$dir/ldd-rewrite.sed
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/configure.in b/ports/sysdeps/unix/sysv/linux/ia64/configure.ac
index 4fb564721b..4fb564721b 100644
--- a/ports/sysdeps/unix/sysv/linux/ia64/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/ia64/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/configure b/ports/sysdeps/unix/sysv/linux/m68k/configure
index a704dacee6..8e955387b7 100644
--- a/ports/sysdeps/unix/sysv/linux/m68k/configure
+++ b/ports/sysdeps/unix/sysv/linux/m68k/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  case $machine in
 m68k/coldfire)
   ;;
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/configure.in b/ports/sysdeps/unix/sysv/linux/m68k/configure.ac
index c21ca9dd47..c21ca9dd47 100644
--- a/ports/sysdeps/unix/sysv/linux/m68k/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/m68k/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/microblaze/configure b/ports/sysdeps/unix/sysv/linux/microblaze/configure
index fa7da73931..086638856c 100644
--- a/ports/sysdeps/unix/sysv/linux/microblaze/configure
+++ b/ports/sysdeps/unix/sysv/linux/microblaze/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/microblaze.
 
 arch_minimum_kernel=2.6.30
diff --git a/ports/sysdeps/unix/sysv/linux/microblaze/configure.in b/ports/sysdeps/unix/sysv/linux/microblaze/configure.ac
index f283d37702..f283d37702 100644
--- a/ports/sysdeps/unix/sysv/linux/microblaze/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/microblaze/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure b/ports/sysdeps/unix/sysv/linux/mips/configure
index 088210ff97..e8b0d7b154 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/mips.
 
 
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure.in b/ports/sysdeps/unix/sysv/linux/mips/configure.ac
index 7087a14a5e..7087a14a5e 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/configure b/ports/sysdeps/unix/sysv/linux/mips/mips64/configure
index f86f3276a5..26bed649db 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/configure
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/mips/mips64.
 
 ldd_rewrite_script=$dir/ldd-rewrite.sed
diff --git a/ports/sysdeps/unix/sysv/linux/mips/mips64/configure.in b/ports/sysdeps/unix/sysv/linux/mips/mips64/configure.ac
index c137ec5552..c137ec5552 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/mips64/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/mips/mips64/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/tile/configure b/ports/sysdeps/unix/sysv/linux/tile/configure
index 88b5788481..02f6c8c25d 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/configure
+++ b/ports/sysdeps/unix/sysv/linux/tile/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/tile.
 
 arch_minimum_kernel=2.6.32
diff --git a/ports/sysdeps/unix/sysv/linux/tile/configure.in b/ports/sysdeps/unix/sysv/linux/tile/configure.ac
index b983e28be6..b983e28be6 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/tile/configure.ac
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure b/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure
index bfa30f6dcf..0a6a63ff99 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/tile/tilegx
 
 ldd_rewrite_script=$dir/ldd-rewrite.sed
diff --git a/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.in b/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.ac
index 87d86bd4c0..87d86bd4c0 100644
--- a/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.ac
diff --git a/sysdeps/gnu/configure b/sysdeps/gnu/configure
index 70aaa90191..e7f0e43959 100644
--- a/sysdeps/gnu/configure
+++ b/sysdeps/gnu/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 # Local configure fragment for sysdeps/gnu.
 
diff --git a/sysdeps/gnu/configure.in b/sysdeps/gnu/configure.ac
index ce251df0c5..ce251df0c5 100644
--- a/sysdeps/gnu/configure.in
+++ b/sysdeps/gnu/configure.ac
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index 53b6a619d3..5dcc159900 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -29,7 +29,7 @@ $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/i386.
 
 # We no longer support i386 since it lacks the atomic instructions
diff --git a/sysdeps/i386/configure.in b/sysdeps/i386/configure.ac
index 96ab7b0f5a..96ab7b0f5a 100644
--- a/sysdeps/i386/configure.in
+++ b/sysdeps/i386/configure.ac
diff --git a/sysdeps/ieee754/ldbl-opt/configure b/sysdeps/ieee754/ldbl-opt/configure
index 6e69038b93..ad9d77b88c 100644
--- a/sysdeps/ieee754/ldbl-opt/configure
+++ b/sysdeps/ieee754/ldbl-opt/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/ieee754/ldbl-opt/.
 
 
diff --git a/sysdeps/ieee754/ldbl-opt/configure.in b/sysdeps/ieee754/ldbl-opt/configure.ac
index a77fadd1c4..a77fadd1c4 100644
--- a/sysdeps/ieee754/ldbl-opt/configure.in
+++ b/sysdeps/ieee754/ldbl-opt/configure.ac
diff --git a/sysdeps/mach/configure b/sysdeps/mach/configure
index 3af372560f..61ac7d9684 100644
--- a/sysdeps/mach/configure
+++ b/sysdeps/mach/configure
@@ -65,7 +65,7 @@ $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_preproc
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}mig", so it can be a program name with args.
diff --git a/sysdeps/mach/configure.in b/sysdeps/mach/configure.ac
index db85f47eae..db85f47eae 100644
--- a/sysdeps/mach/configure.in
+++ b/sysdeps/mach/configure.ac
diff --git a/sysdeps/mach/hurd/configure b/sysdeps/mach/hurd/configure
index 84948a549c..a0f97217e9 100644
--- a/sysdeps/mach/hurd/configure
+++ b/sysdeps/mach/hurd/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 
 $as_echo "#define NO_HIDDEN 1" >>confdefs.h
 
diff --git a/sysdeps/mach/hurd/configure.in b/sysdeps/mach/hurd/configure.ac
index ad915a568b..ad915a568b 100644
--- a/sysdeps/mach/hurd/configure.in
+++ b/sysdeps/mach/hurd/configure.ac
diff --git a/sysdeps/powerpc/configure b/sysdeps/powerpc/configure
index 4afbc29ab3..fccee659a0 100644
--- a/sysdeps/powerpc/configure
+++ b/sysdeps/powerpc/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc.
 
 # Accept binutils which knows about ".machine".
diff --git a/sysdeps/powerpc/configure.in b/sysdeps/powerpc/configure.ac
index 28cc85934d..28cc85934d 100644
--- a/sysdeps/powerpc/configure.in
+++ b/sysdeps/powerpc/configure.ac
diff --git a/sysdeps/powerpc/powerpc32/configure b/sysdeps/powerpc/powerpc32/configure
index 31c571d9ab..fe5a792348 100644
--- a/sysdeps/powerpc/powerpc32/configure
+++ b/sysdeps/powerpc/powerpc32/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc/powerpc32.
 
 # See whether gas has R_PPC_REL16 relocs.
diff --git a/sysdeps/powerpc/powerpc32/configure.in b/sysdeps/powerpc/powerpc32/configure.ac
index 21d3f5ee5b..21d3f5ee5b 100644
--- a/sysdeps/powerpc/powerpc32/configure.in
+++ b/sysdeps/powerpc/powerpc32/configure.ac
diff --git a/sysdeps/powerpc/powerpc64/configure b/sysdeps/powerpc/powerpc64/configure
index 5ddac55922..92ec607e01 100644
--- a/sysdeps/powerpc/powerpc64/configure
+++ b/sysdeps/powerpc/powerpc64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/powerpc/powerpc64.
 
 # The Aix ld uses global .symbol_names instead of symbol_names
diff --git a/sysdeps/powerpc/powerpc64/configure.in b/sysdeps/powerpc/powerpc64/configure.ac
index 67aac663d8..67aac663d8 100644
--- a/sysdeps/powerpc/powerpc64/configure.in
+++ b/sysdeps/powerpc/powerpc64/configure.ac
diff --git a/sysdeps/s390/s390-32/configure b/sysdeps/s390/s390-32/configure
index 669bb9be5c..024565f85a 100644
--- a/sysdeps/s390/s390-32/configure
+++ b/sysdeps/s390/s390-32/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/s390.
 
 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/sysdeps/s390/s390-32/configure.in b/sysdeps/s390/s390-32/configure.ac
index b5af4e12fc..b5af4e12fc 100644
--- a/sysdeps/s390/s390-32/configure.in
+++ b/sysdeps/s390/s390-32/configure.ac
diff --git a/sysdeps/s390/s390-64/configure b/sysdeps/s390/s390-64/configure
index 669bb9be5c..024565f85a 100644
--- a/sysdeps/s390/s390-64/configure
+++ b/sysdeps/s390/s390-64/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/s390.
 
 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/sysdeps/s390/s390-64/configure.in b/sysdeps/s390/s390-64/configure.ac
index b5af4e12fc..b5af4e12fc 100644
--- a/sysdeps/s390/s390-64/configure.in
+++ b/sysdeps/s390/s390-64/configure.ac
diff --git a/sysdeps/sh/configure b/sysdeps/sh/configure
index b0f3b2fa24..110eb65b06 100644
--- a/sysdeps/sh/configure
+++ b/sysdeps/sh/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/sh.
 
 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/sysdeps/sh/configure.in b/sysdeps/sh/configure.ac
index 21400c447d..21400c447d 100644
--- a/sysdeps/sh/configure.in
+++ b/sysdeps/sh/configure.ac
diff --git a/sysdeps/sparc/configure b/sysdeps/sparc/configure
index 63e02de4a6..90a86f6da3 100644
--- a/sysdeps/sparc/configure
+++ b/sysdeps/sparc/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/sparc.
 
 # Check for support of VIS3 et al. instructions in the assembler.
diff --git a/sysdeps/sparc/configure.in b/sysdeps/sparc/configure.ac
index 982077c9b9..982077c9b9 100644
--- a/sysdeps/sparc/configure.in
+++ b/sysdeps/sparc/configure.ac
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index 88fab5662a..84dfbb87df 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux.
 
 # Don't bother trying to generate any glue code to be compatible with the
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.ac
index 5e5902d8ef..5e5902d8ef 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.ac
diff --git a/sysdeps/unix/sysv/linux/powerpc/configure b/sysdeps/unix/sysv/linux/powerpc/configure
index 7df7e481f0..50e3639be5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/configure
+++ b/sysdeps/unix/sysv/linux/powerpc/configure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
 
 
diff --git a/sysdeps/unix/sysv/linux/powerpc/configure.in b/sysdeps/unix/sysv/linux/powerpc/configure.ac
index 1768ab1f99..1768ab1f99 100644
--- a/sysdeps/unix/sysv/linux/powerpc/configure.in
+++ b/sysdeps/unix/sysv/linux/powerpc/configure.ac
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index 9232411951..5a83a53aae 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -29,7 +29,7 @@ $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/x86_64.
 
 
diff --git a/sysdeps/x86_64/configure.in b/sysdeps/x86_64/configure.ac
index c682f93c3e..c682f93c3e 100644
--- a/sysdeps/x86_64/configure.in
+++ b/sysdeps/x86_64/configure.ac
diff --git a/sysdeps/x86_64/preconfigure b/sysdeps/x86_64/preconfigure
index d5abba8824..c8f1e0e132 100644
--- a/sysdeps/x86_64/preconfigure
+++ b/sysdeps/x86_64/preconfigure
@@ -1,4 +1,4 @@
-# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local preconfigure fragment for sysdeps/x86_64
 
 test -n "$base_machine" || case "$machine" in
diff --git a/sysdeps/x86_64/preconfigure.in b/sysdeps/x86_64/preconfigure.ac
index 600700ea1a..600700ea1a 100644
--- a/sysdeps/x86_64/preconfigure.in
+++ b/sysdeps/x86_64/preconfigure.ac