Yes, and also check why the fallback doesn't work, because it's probably not the presence of clflush that makes it fail that way. Either that, or officially dropping support for x86 without it. I've no idea how common it is.
32 bit abi crashes on darwin
Martin Stjernholm, Roxen IS @ Pike developers forum Fri, 01 Apr 2011 10:55:11 -0700
