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Peter Gordon wrote: |
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> On Tue, 2007-07-17 at 19:47 -0400, Mike Frysinger wrote: |
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>> historically, gcc on x86 has always defaulted to i386. some people noticed |
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>> recently that glibc-2.6 fails to build in this situation as they were only |
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>> setting -mtune via CFLAGS, not -march. i'll be tweaking gcc so that it will |
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>> default -march based on your CHOST. so all the i686-* people will now have a |
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>> default -march=i686 implied in their gcc systems, i586-* people will |
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>> have -march=i586, etc... keep in mind this is merely the default. |
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>> -mike |
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> |
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> Does this mean that any user-set "-march" flag is overridden for these |
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> cases? Just curious. |
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You quoted the answer :) These flags are "merely the default". Any |
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user-specified flags will override the default. For example, if you have |
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CFLAGS="-march=i586" with a i686 CHOST, it'd be effectively like calling gcc |
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with 'gcc -march=i686 -march=i586'. The later option would win. |
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-- |
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Andrew Gaffney http://dev.gentoo.org/~agaffney/ |
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Gentoo Linux Developer Catalyst/Installer + x86 release coordinator |
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-- |
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