Makefile.in (GNATLIBCFLAGS_FOR_C): New variable.
libada/
* Makefile.in (GNATLIBCFLAGS_FOR_C): New variable.
(LIBADA_FLAGS_TO_PASS): Add GNATLIBCFLAGS_FOR_C.
* configure.ac: Include config/unwind_ipinfo.m4.
Check for _Unwind_GetIPInfo.
* configure: Regenerate.
gcc/ada/
* init.c (__gnat_adjust_context_for_raise): Mention _Unwind_GetIPInfo.
* gcc-interface/Makefile.in (GNATLIBCFLAGS_FOR_C): Add HAVE_GETIPINFO.
Pass GNATLIBCFLAGS_FOR_C to recursive invocations.
gcc/testsuite/
* gnat.dg/null_pointer_deref1.adb: New test.
* gnat.dg/null_pointer_deref2.adb: Likewise.
From-SVN: r153525