http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55061
--- Comment #13 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-10-25 13:47:21 UTC --- % grep Unwind_GetIPInfo /usr/lib/gcc/powerpc-apple-darwin9/4.2.1/include/unwind.h % extern _Unwind_Ptr _Unwind_GetIPInfo (struct _Unwind_Context *, int *); % grep Unwind_GetIPInfo /usr/lib/gcc/powerpc-apple-darwin9/4.0.1/include/unwind.h % FYI, the original configure test for _Unwind_GetIPInfo was added in this PR26792... http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26792#c11 I think this is a latent issue created by this commit... r141804 | sje | 2008-11-12 16:35:46 -0500 (Wed, 12 Nov 2008) | 9 lines PR target/27880 * config/unwind_ipinfo.m4 (GCC_CHECK_UNWIND_GETIPINFO): Change from link test to target based test. * libstdc++/v3/configure.ac: Move call to GCC_CHECK_UNWIND_GETIPINFO. * libstdc++/v3/configure: Regenerate. * libjava/configure: Regenerate. which doesn't take in account that on darwin9 only the gcc-4.2.1 compiler provides _Unwind_GetIPInfo through /usr/lib/gcc/powerpc-apple-darwin9/4.2.1/include/unwind.h. This is a broken test since gcc-4.2.1 isn't the default system compiler on powerpc-apple-darwin9.
