Created attachment 221119 [details]
Patch file for exp-run

Switch from 'USE_RUBY=yes' to 'USES=ruby'.
    
Notable changes are.
    
* Mk/bsd.ruby.mk is move to Mk/Uses/ruby.mk.
* 'USE_RUBY=yes' is replaced with 'USES=ruby'.
* 'USE_RUBY_EXTCONF' is replaced with 'USES=ruby:extconf'.
* 'USE_RUBY_RDOC' is replaced with 'USES=ruby:rdoc'.
* 'USE_RUBY_SETUP' is replaces with 'USES=ruby:setup'.
* 'RUBY_NO_BUILD_DEPENDS' and 'RUBY_NO_RUN_DEPENDS' are replaced with 'USES=ruby:{build,none,run}'.
* 'RUBY_REQUIRE' isn't used anywhere, so removed.
* 'USES=gem' now implies 'USES=ruby'.
    
Note:
Exp-run requires that all changes are included in one patch. So attached patch includes the move from Mk/bsd.ruby.mk to Mk/Uses/ruby.mk. But when it is committed it should be done with `svn move Mk/bsd.ruby.mk Mk/Uses/ruby.mk`. So I'll update patch after original one has passed exp-run.