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Adrian Frith wrote: |
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> On Tue, 2006-08-22 at 16:12 +0200, Alan Mckinnon wrote: |
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> |
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>> modify CFLAGS in /etc/make.conf |
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>> emerge -e system |
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>> emerge -s world |
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>> |
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>> This will rebuild your toolchain (gcc, glibc and friends) to use -O2 |
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>> then rebuild the entire system, including the toolchain again, with -O2. |
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>> Your current compiler was built with -O3, and you want to rebuild the |
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>> system using a compiler compiled as -O2, hence the 2 step process. |
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>> |
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> |
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> Correct me if I am wrong, but doesn't the gcc ebuild in fact use the |
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> "make bootstrap" method of compiling gcc? - that is: |
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> 1. compile with installed compiler -> stage1 |
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> 2. compile with stage1 compiler -> stage2 |
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> 3. compile with stage2 compiler -> stage3 |
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> 4. compare stage2 and stage3 and install stage3 if they are the same |
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> |
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> If I am right, doesn't it mean that the whole "emerge -e system" step is |
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> pointless? Couldn't one just do "emerge -u gcc" and then "emerge -e |
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> world"? Or am I being stupid? |
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> |
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> Cheers, |
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> Adrian |
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> |
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> |
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|
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That would be my thinking too. Of course, I am wrong a lot too. ;-) |
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Dale |
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:-) :-) |
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-- |
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