On Tue, Apr 24, 2012 at 11:57:47PM +0100, Matt Burgess wrote: > > No idea, Ken. Looking at Fedora, they've always built x86_64 with O3 as > well (as well as many other arches too). Maybe it was simply because, > at the time, LFS only targetted/tested x86 and therefore to err on the > side of caution, we guarded the O3 flag in case it caused build failures > on arches we weren't testing at the time? > > My personal view on this is that we should just drop that and use > whatever upstream consider to be the correct CFLAGS, which from my > current logs appears to be O2 on x86_64. > > Regards, > > Matt. > For x86_64, I can't contest that ;-) Those who build on 32-bit (well, i?86 : I hope to build on x86_32 (x86_64 registers, but 32-bit addressing) eventually) can report if it causes a problem.
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