setting up make.conf

**justwes** · 08-30-2004

I'm in the process of setting this file up, and in this section of the guide.

Also I'm looking at the makeconf.example for conf options etc...

The file that I start with has a few settings that I read that should be changed.

The machine I'm installing this on has an AMD Athlon XP 1700+ so based on what I read in make.conf.exmple I put the following in:

Code:

CFLAGS="-march=athlon-xp -o3 -pipe"

But the guide has some of the elements switched:

Code:

CFLAGS="-march=athlon-xp -pipe -o3"

Does that matter?

And when I first opened the file there already was a CFLAGS varible set. Do I replace that one with the athlon setting or do I just add it to the file further down?

And if anyone has some recommended settings to place in there please let me know.

**e2k** · 08-30-2004

As far as I know, there's no difference between CFLAGS="-march=athlon-xp -o3 -pipe" and CFLAGS="-march=athlon-xp -pipe -o3".. What stage install are you running? Stage3 should have the make.conf pretty much pre-configured, if you downloaded the optimal stage tarball (in this case athlon-xp).. Atleast I didn't have to do remarkable changes in it

Good luck with your install!

**justwes** · 08-31-2004

I had made the mistake of downloading the generic i86 stage2 file. So there were no optimizations for AMD XP.

But I downloaded the correct stage last night, and so far everything has been going ok.

The kernel is compiled and such and right now I'm emerging gnome (I think). But it's only at 9 of 143 so I'll have to leave it doing stuff while I head off to work.

I'm also sure that when I get home tonight I'll be posting some new questions for you guys.

**variant** · 08-31-2004

include -fomit-frame-pointer too

"-O3 -pipe -fomit-frame-pointer"

it will improve performance

**gwalters** · 09-01-2004

DO NOT use the harden option in make.conf. It will screw up your system then X will not work. Im speaking from exp.

**sarumont** · 09-01-2004

Originally Posted by gwalters

DO NOT use the harden option in make.conf. It will screw up your system then X will not work. Im speaking from exp.

Unless you are trying to run a Hardened gentoo installation, in which case you would be prepared to break many things before it's all working.

**kkubasik** · 09-01-2004

hey, I have always used the --fomit-frame-pointer flag, along with pipes, and i understand pipes (use them all the time in bash) but does anyone know anything about --fomit-frame-pointer and what it does to increase performace?

**lordnothing** · 09-02-2004

IIRC, the frame pointer stores some debugging info in it.. if you omit it, you can *not* debug a program..

that being said, i don't roally know why it increases performance.

**kkubasik** · 09-02-2004

well without debuging code in the binary, its slimmer and executes faster.

**e2k** · 09-02-2004

Apparently I have to add -fomit-frame-pointer to my make.conf

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