Tuning make.conf

Julius Huang juliushuang at gmail.com
Thu Mar 13 10:34:01 UTC 2008

On Mar 13, 2008, at 17:32 , Luca Presotto wrote:

> Hi everyone!
> 	I was starting to think to recompile everything for my pc to speed
> up everything. I started googling and I found almost nothing about  
> how to
> change make.conf on bsd. Almost everything was about Gentoo,  
> somehow not
> unsurprisingly.

Try man make.conf


> The first thing I noticed is that for linux all the instructions  
> are about
> doing CFLAGS=" value" while it seems from /etc/share/examples/ 
> make.conf
> that in bsd I don't need ". Is it correct?
> Second question: If I set MAKEOPTS= -j 3 will that be used when
> portupgrading? (It's really to slow otherwise!)
> Third question...The most difficult..Which are the best flags for my
> machine? (freebsd 7.0-RELEASE with an intel centrino core2 duo)
> I have seen in the ..../examples/etc/make.conf that one of the  
> possible
> "CPUTYPE" is core2 which looks to me as the right one but a geekier  
> friend
> of mine that lives inside gentoo-linux told me that this option is
> unknown is gcc 4.2 and will be working from gcc4.3, so he told me  
> to use
> "prescott".
> And what do I have to set to make gcc aware of the type of CPU I have?
> CPUTYPE= cpu
> and then CFLAGS= --O2 -pipe (etc..)
> or should I not write the cputype and then do:
> CLFAGS= -march=mycpu --O2 etc....
> Can someone give me some advice on how to configure this file?
> Or can you provide me some documentation?
> Thank you!
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