On Tue 2012-10-16 10:52:36 UTC-0500, Scott Bennett (benn...@cs.niu.edu) wrote:
> From looking at the clang(1) man page, it is not clear to me what the > difference is between the -arch option and the -march= option. Would > someone please summarize the difference(s) for me? Thanks much! >From the users POV, clang is supposed to be a drop-in replacement for gcc, where -arch is also an option. Looking online though, it would appear it's an Apple Darwin (OS X) only feature of gcc for generating universal binaries. The question is a bit academic as it doesn't actually do anything in FreeBSD, at least not for me: $ clang -o hello -arch x86_64 hello.c clang: warning: argument unused during compilation: '-arch x86_64' $ clang -v clang version 3.1 (branches/release_31) Target: amd64-portbld-freebsd8.3 Thread model: posix Nor in Linux (an old version, admittedly): $ clang -o hello -arch i386 hello.c clang: warning: argument unused during compilation: '-arch i386' $ clang -v clang version 1.1 (branches/release_27) Target: x86_64-pc-linux-gnu Thread model: posix Regards Andrew _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"