> Can you provide more info about these gcc builtins and what is the > minimum system where this test will succeed?
CMPXCHG for x86 is available since the 486 or so, so practically everywhere. I think that's mainly for other architectures. it would be reasonable to just use #if defined(__x86_64__) || defined(__i386__) instead. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/