[gentoo-catalyst] concerning USE flags

[Lanza Fabrizio]

Hi, I'm sorry if this question might have been asked a thousand times,
but I cannot find a solution. I also read the howtos that I could find,
included the documentation that is currently removed from the gentoo
site.
 
 The question is, where do I tell Catalyst the correct USE flags for a
specific program?
 
 I tried in portage.config. It did not catch it.
 I put it in
/var/tmp/catalyst/tmp/mycd/livecd-stage1.../etc/portage/package.use.
Same.
 I put it in
/var/tmp/catalyst/tmp/mycd/livecd-stage2.../etc/portage/package.use.
Same.
 
 I know that Catalyst does not read package.use as expected. But I don't
see how to do then.
 
 I suspected that, if I run catalyst again without removing the whole
livecd-stage, it won't rebuild my package with the new USE flags. So, I
removed the whole livecd-stage2, modified the USE flags, added my
package that needed a rebuild with the correct flags, and rebuilt
livecd-stage2 completely. But still it was built with the wrong flags
and failed.
 
 I will appreciate if you can point me to the right direction.
 Thank you!