http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48086
--- Comment #15 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-03-13 21:54:17 UTC --- FYI, it it comes down to having a dependency on libelf or heavily lobbying Apple to fix the broke change made to the assembler in Xcode 4.0.1 and 4.1, I would go with the second option. After all, they currently aren't properly honoring their own documented mach-o specifications and who knows what grief this change will cause for other software developers who have relied on this behavior.