------- Comment #3 from howarth at nitro dot med dot uc dot edu 2010-04-12 17:11 ------- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42776#c8 also contains a short list of some of the required code changes for MachO LTO. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43729