Re: [gentoo-user] gcc-4.3.x and Core 2 Duo, safe way

[Justin]

Graham Murray schrieb:

Andrew Gaydenko <[EMAIL PROTECTED]> writes:

gcc-4.3.1 is umasked now. I'm on ~amd64 with Core 2 Duo CPU. Is it sufficient just to set

CFLAGS="-O2 -march=core2 -mtune=core2 -pipe"

instead of

CFLAGS="-O2 -march=native -mtune=native -pipe"

which I have in make.conf now? Are there any other things to do?

Should the two not be equivalent? On a core2 processor, should
-march=native not generate code for the core2?

I can't remember where (but it could only be in the wiki or the official gcc docs), I read that using -march="YOURARCH" should be preferred over -march=native.

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