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On Saturday 30 September 2006 16:35, Lionel Bouton wrote: |
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> There is a lot of material out there about CFLAGS |
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`man gcc` always seemed fine to me |
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in fact, lets read the -ffast-math section: |
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-ffast-math |
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This option should never be turned on by any -O option since it can |
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result in incorrect output for programs which depend on an exact |
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implementation of IEEE or ISO rules/specifications for math func- |
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tions. |
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this flag is never safe to use in CFLAGS |
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> link='http://gentoo-wiki.com/CFLAGS_matrix' |
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no way will our documentation link to gentoo-wiki.com |
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> If possible, I'd like to expand the list of 3.4.6 -> 4.1.1 upgrade |
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> problems which are linked to experimental CFLAGS |
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i find maintaining a list of "safe" CFLAGS on a per-gcc basis to be a waste of |
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time ... but that's just me |
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-mike |