http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60821
--- Comment #6 from a.h.jaffe at gmail dot com --- Thanks for the comprehensive info. It would certainly be nice to get the driverdriver into the main code-base. However, one thing still puzzles me: > 5. We do accept -arch on x86: -arch i386 gets mapped => -m32 and -arch > x86_64 -> -m64. The last one you place on the c/l will be in force (and > there's NO support for the ppc equivalent at present). This doesn't quite make sense given my experience: I have a 64-bit Mavericks machine, and compiled using MacPorts with +universal. All of "-arch i386", "-arch x86_64" and "-arch x86_64 -arch i386" seem to succeed, but "-arch i386 -arch x86_64" fails. According to the above, the latter should have the same behaviour as "-arch x86_64"
