make.conf ?

emetib · 02-14-2003, 07:57 PM

can i just add a make.conf file to mandrake? i don't have one now. i would like to have it reconize my cpu and compile accordingly.

is this possible? does mandrake have something like it?

thanks.

crichards · 02-14-2003, 08:46 PM

make.conf is a Gentoo specific thing. You'll want to set the following variables:

CFLAGS='-march=processor-type -O2 -pipe -funroll-loops...'
CXXFLAGS=$CFLAGS

Anything you then compile will use those settings. Add this to your .bash_profile, and then add the line:

export CFLAGS
export CXXFLAGS

emetib · 02-14-2003, 09:13 PM

so what is funroll loops?

am i going to be flying circles around people?

in the gentoo docs it says like "march -athlon-xp ...." is that the format that i should follow. or use the fun loops?

seriously though. do i want both of the first lines in the .bash_profile also?

CFLAGS='-march=processor-type -O2 -pipe -funroll-loops...'
CXXFLAGS=$CFLAGS

along with these

export CFLAGS
export CXXFLAGS

thanks.

crichards · 02-14-2003, 09:23 PM

The CFLAGS='...' is all of your optimizations.

Mine looks like '-march=athlon-tbird -O2 -pipe -funroll-loops'

The second line is for the C++ compiler to use. You can have different optimizations for each compiler.

PS: -funroll-loops is another optimization. I'm looking for this guide I found, but can't find anymore...

emetib · 02-14-2003, 09:28 PM

well i think that i'm going to give gentoo another shot. the first couple didn't go real well. i think it was mostly that i was tired, so i was getting frustrated easily.

thanks again.