------- Comment #22 from howarth at nitro dot med dot uc dot edu 2006-09-21 04:16 ------- Okay, the autoconf changes for libstdc++ and libgcj actually work okay. The test program uses the static libgcc.a to link (which lacks the __Unwind_GetIP symbol) so that HAVE_GETIPINFO remains undefined regardless of whether MACOSX_DEPLOYMENT_TARGET is set or not. I believe this is the behavior we want on Darwin since the alternative of allowing MACOSX_DEPLOYMENT_TARGET unset to cause __Unwind_GetIP to be used in libstdc++ and libgcj would create libraries that couldn't be used when MACOSX_DEPLOYMENT_TARGET was set to 10.4 or 10.5. I'll post the patches to gcc-patches shortly.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26792