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http://gentoo-wiki.com/Safe_Cflags |
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|
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> Intel Core 2 Duo/Quad / Xeon 51xx/53xx |
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> |
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> vendor_id : GenuineIntel |
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> cpu family : 6 |
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> model : 15 |
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> model name : Intel(R) Core(TM)2 CPU XXXX @ XXXGHz |
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> |
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> *32 bit profile (x86)* |
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> |
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> CHOST="i686-pc-linux-gnu" |
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> CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer" |
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> CXXFLAGS="${CFLAGS}" |
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> |
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> *64 bit profile (amd64)* |
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> |
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> CHOST="x86_64-pc-linux-gnu" |
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> CFLAGS="-march=nocona -O2 -pipe" |
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> CXXFLAGS="${CFLAGS}" |
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> |
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> *Note:* |
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> |
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> - GCC 4.3 has -march=core2[1]<http://www.gnu.org/software/gcc/gcc-4.3/changes.html>, |
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> but Gentoo has nothing above 4.2 in portage. |
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> |
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> |
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