Silence annoying ABI change warning.
* configure.ac [GCC]: Pass -Wno-psabi for gcc >= 4.6. Avoid some gcc option tests for gcc >= 4.6
(cherry picked from commit d04399a6a8b36a7fea92c304aa7309956a2e352b)
Resolved Conflicts:
configure.ac: merged.
- Signed-off-by: Werner Koch <wk@gnupg.org>