Re: [gentoo-dev] ${PORTDIR}/profiles/package.use

[Marius Mauch <genone@gentoo.org>]

Petteri Räty wrote:
> Every once in a while I see people wanting to use nosomething use flags.
> Why don't we have a package.use like we already have a package.mask
> file? This would make it possible for developers to turn on use flags by
> default in a way that would not cruft the base profiles for every local
> use flag.

The main problem I'd have with this is the stacking order, e.g. 
profiles/package.use has "app-misc/foo bar" and make.conf has 
"USE=-bar", which one should be preferred?
Current rules say that /etc/portage/package.use overrides make.conf, and 
user config overrides profiles, the proposal would create a new 
unintuitive situation between those two.
Depending on the answer on this it also has some technical implications 
with the way package.use support is implemented currently. In short it's 
  not a trivial thing to do.

Marius
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