http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56811
--- Comment #6 from Misty De Meo <misty at brew dot sh> --- The config.log for libbacktrace shows that it believes it found _Unwind_GetIPInfo: configure:11652: checking for _Unwind_GetIPInfo configure:11667: /usr/local/bin/gcc-4.4 -c -g -Werror-implicit-function-declaration -F/usr/local/Frameworks conftest.c >&5 configure:11667: $? = 0 configure:11674: result: yes
