http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55289
--- Comment #49 from Alexander Potapenko <glider at google dot com> 2012-11-22 10:43:03 UTC --- The new interposition library should work on 10.6. But ASan itself doesn't work on 10.5, at least I remember some problems with its compilation. We're not really interested in supporting 10.5, as it's completely unsupported by Apple.
