/etc/portage/package.use

 Article description::provides a more fine grained  of  than the USE variable in.

With the default setting, the  file or directory will override individual package settings coming from all locations except for the USE environment variable.

Example
For more details see.

Format

 * One DEPEND atom per line with space-delimited.
 * Comment lines begin with  (hash).

Automatically generated content
has the  option enabled by default (see ), so it can generate  settings as necessary to satisfy dependencies.

External resources

 * https://packages.gentoo.org/useflags - USE flags on Gentoo Packages Database
 * Portage man page
 * Setting USE_EXPAND flags in package.use - blog post by Bernard Cafarelli
 * Find obsolete USE flags in /etc/portage/package.use - Gentoo forums thread
 * Find obsolete USE flags in /etc/portage/package.use - Gentoo forums thread