gcc/config/unwind_ipinfo.m4
Steve Ellcey 511464e382 re PR target/26792 (need to use autoconf when using newly-added libgcc functions)
PR target/26792
	* unwind_ipinfo.m4: New.

From-SVN: r115653
2006-07-21 21:07:15 +00:00

23 lines
651 B
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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
])