Subject: Re: C compiler flags
To: Matthias Scheler <>
From: Roland Illig <>
List: pkgsrc-users
Date: 11/20/2006 00:20:35
Matthias Scheler wrote:
> On Tue, Nov 14, 2006 at 12:08:49AM +0100, Ricardo Cervera Navarro wrote:
>>I am using:
>>CFLAGS+=-O2 -march=athlon
>>in my /etc/mk.conf.
> I'm sorry but that is wrong.
> 1.) Please do *not* modify "CFLAGS" in "/etc/mk.conf". You will cause
>     various build failures.

It's mentioned in the pkgsrc guide, so why shouldn't one do that?

> 2.) Please do *not* try to enforce using "-O2". There are packages which
>     build without optimization by purpose. It is default under NetBSD for
>     all the packages where this optimization level is known to work

Those packages should set


All others should be expected to work with -O2.