diff options
| author | Ian Lance Taylor <iant@golang.org> | 2023-11-06 15:09:18 -0800 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2023-11-06 15:11:43 -0800 |
| commit | 2b64e4a54042fb8f75f1c1429eb1c13afb9fa118 (patch) | |
| tree | e9638beccba5e169b061080f90aadbd77aa679ca | |
| parent | 471fb6ee435034c6635576fb92c325420f007804 (diff) | |
| download | gcc-2b64e4a54042fb8f75f1c1429eb1c13afb9fa118.zip gcc-2b64e4a54042fb8f75f1c1429eb1c13afb9fa118.tar.gz gcc-2b64e4a54042fb8f75f1c1429eb1c13afb9fa118.tar.bz2 | |
libstdc++: use -D_GNU_SOURCE when building libbacktrace
PR libbacktrace/111315
PR libbacktrace/112263
* acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
grepping link.h for dl_iterate_phdr.
* configure: Regenerate.
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 5 | ||||
| -rwxr-xr-x | libstdc++-v3/configure | 5 |
2 files changed, 8 insertions, 2 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 654b99e..77569d5 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -5443,7 +5443,7 @@ AC_DEFUN([GLIBCXX_ENABLE_BACKTRACE], [ # Most of this is adapted from libsanitizer/configure.ac - BACKTRACE_CPPFLAGS= + BACKTRACE_CPPFLAGS="-D_GNU_SOURCE" # libbacktrace only needs atomics for int, which we've already tested if test "$glibcxx_cv_atomic_int" = "yes"; then @@ -5471,8 +5471,11 @@ AC_DEFUN([GLIBCXX_ENABLE_BACKTRACE], [ have_dl_iterate_phdr=no else # When built as a GCC target library, we can't do a link test. + ac_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes], [have_dl_iterate_phdr=no]) + CPPFLAGS="$ac_save_CPPFLAGS" fi if test "$have_dl_iterate_phdr" = "yes"; then BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_DL_ITERATE_PHDR=1" diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index a4b12de..155faf5 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -73299,7 +73299,7 @@ fi # Most of this is adapted from libsanitizer/configure.ac - BACKTRACE_CPPFLAGS= + BACKTRACE_CPPFLAGS="-D_GNU_SOURCE" # libbacktrace only needs atomics for int, which we've already tested if test "$glibcxx_cv_atomic_int" = "yes"; then @@ -73382,6 +73382,8 @@ done have_dl_iterate_phdr=no else # When built as a GCC target library, we can't do a link test. + ac_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include <link.h> @@ -73395,6 +73397,7 @@ else fi rm -f conftest* + CPPFLAGS="$ac_save_CPPFLAGS" fi if test "$have_dl_iterate_phdr" = "yes"; then BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_DL_ITERATE_PHDR=1" |