http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53453
--- Comment #10 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-05-24 23:22:21 UTC --- Created attachment 27494 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27494 proposed patch to emit AT_comp_dir on darwin using target hook
