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From: Antoine Jacoutot <ajacoutot@lphp.org>
To: freebsd-questions@freebsd.org
Date: Sun, 15 Feb 2004 13:57:37 +0100
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Subject: make.conf CFLAGS and ports
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Hi :)

I was just wondering how CFLAGS were managed with make.conf and ports 
building.
Indeed, today I just realized that what's in make.conf overwrite the default 
build for ports.
I have this in my make.conf:
CFLAGS= -O -pipe

I though those were the right settings for building the world, but, I just 
realized while building kde-3.2 that the ports should build with -O2 (from 
the Mk or Makefile file I guess) but because of what I have in my make.conf, 
it builds like this: -O2 -O -pipe -march=pentium3, and since the last 
optimisation settings wins, kde-3.2 is build with: -O -pipe -march=pentium3.
I suppose this is normal behaviour, but does this mean I have to comment 
CFLAGS everytime I build a port, so that it gets its default optimisation or 
is there another way ?
My dream configuration would be:
CFLAGS= -O -pipe for building the world
CFLAGS= -O -pipe for building ports, EXCEPT if the Makefile and/or Mk build 
instructions give a higher optimisation setting.

I hope this is understandable, my English is poor when coming to explain 
stuffs...

Thanks for reading me.
Regards,

Antoine