diff options
Diffstat (limited to 'config/unwind_ipinfo.m4')
| -rw-r--r-- | config/unwind_ipinfo.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/config/unwind_ipinfo.m4 b/config/unwind_ipinfo.m4 new file mode 100644 index 000000000..5587d9c3f --- /dev/null +++ b/config/unwind_ipinfo.m4 @@ -0,0 +1,22 @@ +dnl +dnl Check whether _Unwind_GetIPInfo is available. +dnl +AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + ac_save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS -fno-exceptions" + AC_MSG_CHECKING([for _Unwind_GetIPInfo]) + AC_CACHE_VAL(gcc_cv_getipinfo, [ + AC_TRY_LINK([extern "C" { extern void _Unwind_GetIPInfo(); }], + [_Unwind_GetIPInfo();], + [gcc_cv_getipinfo=yes], + [gcc_cv_getipinfo=no]) + ]) + if test $gcc_cv_getipinfo = yes; then + AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.]) + fi + AC_MSG_RESULT($gcc_cv_getipinfo) + CXXFLAGS="$ac_save_CXXFLAGS" + AC_LANG_RESTORE +]) |