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I've been trying to get a cross compiler set up under OS X, but can't seem to get it right. I have i586-elf-binutils, nasm, and qemu installed properly, but clang simply refuses to accept the target configuration I give it. I configure the latest trunk build with "--target=i586-elf", and it seems to work (configure reports that build and host are x86_64-apple-darwin and target is i586-elf) but once it compiles the resulting executable reports its target as x86_64-apple-darwin and produces only Mach-O executables. Any idea of what I'm doing wrong?

Okay, then how do you tell clang to output ELF when you invoke it? I've been searching the user documentation and various other sites for hours, and I can only find options that switch architecture, not executable format. The only command line option I've been giving it is -m32.