[gentoo-user] Re: gcc 4.2 and Core 2 Duo

[Alexander Skwar]

Kenneth Prugh <ken69267@×××××.com> wrote:

> Yeah I wasn't exactly positive if it did pull everything in, and
> specifying specifically can't really hurt at all as long as you know
> it's supported with your cpu.

Doesn't the doc say, that it actually CAN hurt, as it forces the use
of certain instructions, even if they would not be used automatically?

Because of that, I'd refrain from using stuff like -msse for each
and every package. There might be the odd package out there, where
something like this would help.

Conclusion: I'd use: CFLAGS="-Os -march=native"

Alexander Skwar

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