Cleanup compiler warning on e_signals.c:         execinfo.h (which contains the backtrace* functions is only included         if OBJECT_PARANOIA_CHECK is defined so add an #ifdef around those calls.
Cleanup compiler warning on e_signals.c:
        execinfo.h (which contains the backtrace* functions is only included
        if OBJECT_PARANOIA_CHECK is defined so add an #ifdef around those calls.


git-svn-id: 6ac5796aeae0cef97fb47bcc287d4ce899c6fa6e@41439 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/e17,jordemort/e17,jordemort/e17