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Ryan Hill posted on Sat, 02 Apr 2011 22:11:12 -0600 as excerpted: |
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> You may also want to test your packages with the new -Ofast option to |
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> be sure it doesn't have any hardcoded assumptions about -O flags. |
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The release description I've read for -Ofast says it includes -fast-math, |
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among other things, a flag Gentoo has always strongly discouraged (you |
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break with it, you keep the pieces) and which can get bugs resolved/ |
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invalid as a result. |
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Now that gcc 4.6 itself is more strongly supporting it as enabled with one |
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of the -O options, is that policy going to change, or is Gentoo going to |
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officially not support -Ofast, as well? |
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Or is that yet to be established, thru testing? |
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FWIW, I've always stayed away from that flag, but if Gentoo's going to |
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support it now, that may well change, tho I'd certainly disable it for |
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specific packages using /etc/portage/env/*, as I already do for |
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-combine, in my default CFLAGS but not CXXFLAGS, for instance. |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman |
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