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| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-26 17:34:59 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-26 17:34:59 +0000 |
| commit | a4a5a77adfc9c28d6963e5ae054c997d57cfc7fa (patch) | |
| tree | 5246f8eb551abdd7c816a0ada36100751a6995ac /libbacktrace/configure.ac | |
| parent | 247ea43cf83b9b3aeae600dbf9d4b50b197a5576 (diff) | |
| download | gcc-a4a5a77adfc9c28d6963e5ae054c997d57cfc7fa.tar.gz | |
PR target/55061
* configure.ac: Check for _Unwind_GetIPInfo function declaration.
* configure: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192853 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libbacktrace/configure.ac')
| -rw-r--r-- | libbacktrace/configure.ac | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac index 6867ecffb89..534f9276cdb 100644 --- a/libbacktrace/configure.ac +++ b/libbacktrace/configure.ac @@ -129,8 +129,18 @@ AC_SUBST(WARN_FLAGS) if test -n "${with_target_subdir}"; then GCC_CHECK_UNWIND_GETIPINFO else - AC_CHECK_FUNC(_Unwind_GetIPInfo, [have_unwind_getipinfo=yes], - [have_unwind_getipinfo=no]) + ac_save_CFFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror-implicit-function-declaration" + AC_MSG_CHECKING([for _Unwind_GetIPInfo]) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [#include "unwind.h" + struct _Unwind_Context *context; + int ip_before_insn = 0;], + [return _Unwind_GetIPInfo (context, &ip_before_insn);])], + [have_unwind_getipinfo=yes], [have_unwind_getipinfo=no]) + CFLAGS="$ac_save_CFLAGS" + AC_MSG_RESULT([$have_unwind_getipinfo]) if test "$have_unwind_getipinfo" = "yes"; then AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.]) fi |