1 files changed, 60 insertions, 6 deletions

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index d867af37114..44374746c2b 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -3530,11 +3530,11 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
 # We need awk for the "check" target.  The system "awk" is bad on
 # some platforms.
-# Always define AMTAR for backward compatibility.  Yes, it's still used
-# in the wild :-(  We should find a proper way to deprecate it ...
-AMTAR='$${TAR-tar}'
+# Always define AMTAR for backward compatibility.
 
-am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
 
 
 
@@ -20413,11 +20413,65 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: for suitable sys/sdt.h" >&5
+$as_echo "for suitable sys/sdt.h" >&6; }
+  # Note that this test has to be run with the C language.
+  # Otherwise, sdt.h will try to include some headers from
+  # libstdc++ itself.
+
+  ac_ext=c
+ac_cpp='$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 "${glibcxx_cv_sys_sdt_h+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    # Because we have to run the test in C, we use grep rather
+    # than the compiler to check for the bug.  The bug is that
+    # were strings without trailing whitespace, causing g++
+    # to look for operator"".  The pattern searches for the fixed
+    # output.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #include <sys/sdt.h>
+      int f() { STAP_PROBE(hi, bob); }
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP " \",\" " >/dev/null 2>&1; then :
+  glibcxx_cv_sys_sdt_h=yes
+else
+  glibcxx_cv_sys_sdt_h=no
+fi
+rm -f conftest*
+
+
+fi
+
+  ac_ext=c
+ac_cpp='$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 $glibcxx_cv_sys_sdt_h = yes; then
+
+$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sys_sdt_h" >&5
+$as_echo "$glibcxx_cv_sys_sdt_h" >&6; }
+
+
 # Check for available headers.
 for ac_header in endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
 locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
 strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
-sys/resource.h sys/sdt.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
+sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
 wchar.h wctype.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
@@ -71477,7 +71531,7 @@ $as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
 fi
 
 # For libtool versioning info, format is CURRENT:REVISION:AGE
-libtool_VERSION=6:18:0
+libtool_VERSION=6:19:0
 
 # Everything parsed; figure out what files and settings to use.
 case $enable_symvers in