buildtools/gcc/config/unwind_ipinfo.m4
Michael Lotz a84f174425 Bring GCC 4.3.3 to trunk.
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@29033 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-01-26 05:03:14 +00:00

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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
])