On 05/22/2012 09:10 PM, Chris Stankevitz wrote: > > How was I supposed to learn the "proper" way of dealing with this > RUBY-related system change?
The way I learned was by watching the emerge output: $ emerge -pv dev-ruby/rails These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild N ] app-admin/eselect-rails-0.16 2 kB [ebuild N ] dev-ruby/tmail-1.2.7.1-r2 USE="-debug -doc -test" RUBY_TARGETS="ruby18 -jruby -ree18" 436 kB and wondering, "RUBY_TARGETS, what the hell is that?" I'm sure there's a proper way, but that's the way I've discovered all of the USE_EXPAND variables. LINGUAS was the first, then I noticed ALSA_CARDS, APACHE2_MODULES, XFCE_PLUGINS... The default list can be found in, /usr/portage/profiles/base/make.defaults