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Robert Cole writes: |
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> I recently noted a warning in the new make.conf file to not use the -pentium4 |
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> compiler option and to use -pentium3 instead. My entire system was built from |
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> stage1 with -pentium4 and I'm not having any issues. |
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> |
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> To be safe I switched it to p3 for now. |
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> |
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> Anymore detail on this? Is this something that has to be fixed in gentoo |
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> specifically or all source in general? |
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|
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Robert, I was bit by at least one of the problems a while back. It |
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seems that some of the floating point code is not quite right yet for |
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pentium4. I believe this is a gcc and maybe glibc issue. The |
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particular example that caused me problems is the glibc modf() |
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function. See |
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http://forums.gentoo.org/viewtopic.php?t=27211&highlight=python+float |
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for more info and a sample c program that will highlight the problem. |
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|
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It was suggested at the time by Nick Jones (see |
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http://article.gmane.org/gmane.linux.gentoo.user/23056) that I back |
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down to pentium2. I haven't updated my portage recently, so I |
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haven't looked at what the new updated make.conf file suggests but I |
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definitely would follow any advice it gives. |
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|
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-- |
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Jeff Kowing |
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jeffrey.d.kowing@××××.gov |
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|
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-- |
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gentoo-dev@g.o mailing list |
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