Re: [gentoo-user] Re: CFLAGS "...-O3 -pipe" vs "...O2 <no pipe>"

["Jesús Guerrero" <6thpink@terra.es>]

El Tue, 10 Apr 2007 07:29:26 -0700 (PDT)
maxim wexler <blissfix@yahoo.com> escribió:

> 
> --- Francisco Rivas <taken2k4@gmail.com> wrote:
> 
> > Hi all :D
> > 
> > I think what "-march=your_arch -O2" it's enough,
> > because -O3 it's highest
> > but have some details
> > (http://gentoo-wiki.com/CFLAGS#-O2_or_-O3.3F). My
> > guess is "-march=your_arch
> > -O2". I was compiled my entire system with those
> > flags and my applications
> > no matter which have a very good functionality...
> > 
> > I hope give you some help to make your decision...
> > 
> 
> Interesting. Just completed emerge -uvDN world using
> the "-03 -pipe" cflags in make.conf for the PIII arch.
> I noticed as the output scrolled by that the flags I
> set were being used for all packages *except* gcc
> which used "-02 -pipe". 

Hello, 

If the ebuilds were that "smart" to let people mess up cflags on such
packages, people would need to reinstall Gentoo as much as they need to
reinstall Windows. Of course the reason would be a broken toolchain,
instead of a OS that gradually degrades whit the age.

That is specially true when you even make typos writing cflags. See -O2
vs. -02.

-- Jesús Guerrero
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