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On Sun, Sep 11, 2005 at 10:25:40AM -0400, Michael Crute wrote |
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> It may be simpler to look at |
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> http://www.freehackers.org/gentoo/gccflags/flag_gcc3.html for the cflags for |
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> the processor. |
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Yikes!!! Let's just say that I strongly disagree with them. |
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1) I do not consider -O3 to be "safe". Back a few years ago in my |
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Redhat days, I did my first custom compiles with the Mozilla 0.95 (*NOT* |
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Firefox 0.95) sources. The thing that drove me to learn was that the |
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standard Mozilla 0.95 build was excruciatingly slow on a 433 mhz PIII |
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with 128 megs of RAM. When I built with -O3, the resulting program |
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would usually segfault on startup or soon thereafter. With -O2, Mozilla |
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0.95 was stable and was almost reasonably fast. |
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2) They miss mmx, sse, sse2, sse3, 3dnow, and mfpmath=sse, which are a |
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lot safer than O3. |
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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My musings on technology and security at http://tech_sec.blog.ca |
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-- |
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gentoo-user@g.o mailing list |
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