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On Mon, 13 Dec 2010 18:41:07 -0600 |
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Ryan Hill <dirtyepic@g.o> wrote: |
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> Absolutely, -march=native should be used if you aren't using distcc. |
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> This is about setting CPU-based USE flags (mmx, sse, etc.). |
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Exactly, or x86 CPU extensions based USE flags, more exactly. |
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It seems the thread has been somewhat hijacked in favour of automating |
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setting USE flags or at least helping to set them based on information |
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found here and there on the system that happens to be queried for it, |
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something we have never supported since the thankfully forgotten days of |
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<profiles/base/use.defaults>. And rather than trusting gcc |
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-march=native to do the work for you, you would probably be better off |
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checking `grep ^flags /proc/cpuinfo' anyway. :) |
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jer |
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