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On Friday 09 June 2006 14:13, Vladimir G. Ivanovic wrote: |
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> On Fri, 2006-06-09 at 13:59 +0200, Michael Weyershäuser wrote: |
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> > Vladimir G. Ivanovic wrote: |
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> > > Linus seems to use -ffast-math: |
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> > > |
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> > > http://gcc.gnu.org/ml/gcc/2001-07/msg02150.html. At least in 2001 he |
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> > > did. |
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> > |
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> > Linus Torvalds wrote: |
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> > > I used -ffast-math myself, when I worked on the quake3 port to Linux |
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> > > (it's been five years, how time flies). |
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> > |
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> > So it was actually in 1996 and he did it *in a game*. That is, at least |
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> > in my opinion, quite different from using it globally on the whole |
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> > system... |
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> |
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> You're right, it was in 1996. But judging from his comments, he is still |
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> probably using -ffast-math. |
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> |
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> Anyway, I've been using -ffast-math with gcc-4.1.0 and gcc-4.1.1. No |
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> problems (except for busybox), and I've recompiled both system and |
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> world. |
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yes, but not with that flag. |
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Check the ebuilds. It is filtered out almost everywhere. |
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It is 'ok' in most games, video apps and picture viewers. But everything that |
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needs at least some correct math, is screwed. You maybe do not see the |
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breakage now. But someday it will byte you in your behind. |
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-- |
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gentoo-amd64@g.o mailing list |
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