[Bug target/55061] libbacktrace build fails during bootstrap on powerpc-apple-darwin9

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55061

--- Comment #23 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-10-25 23:08:50 UTC ---
(In reply to comment #22)
> Created attachment 28532 [details]
> proposed patch to check for _Unwind_GetIPInfo function declaration

Patch tested on powerpc-apple-darwin9 with gcc 4.0.1 which results in
HAVE_GETIPINFO being left unset and with gcc 4.2.1 which results in
HAVE_GETIPINFO being set in config.h. Also tested on x86_64 Fedora 15 which
also results in HAVE_GETIPINFO being set. Also note that for gcc 4.0.1 on
powerpc-apple-darwin9, while libbacktrace in stage 1 has HAVE_GETIPINFO unset,
it is set properly in stage2 when building against the stage 1 compiler. Also
tested on x86_64-apple-darwin11 with clang from Xcode 4.5.1 which properly
defines HAVE_GETIPINFO during stage 1.