>>> emerge (12 of 86) dev-lang/perl-5.8.0-r9 to / >>> md5 ;-) perl-5.8.0.tar.gz * * PLEASE NOTE: If you want to compile perl-5.8 with * threading enabled , you must restart this emerge * with USE=threads emerge.... * Threading is not supported by all applications * that compile against perl. You use threading at * your own discretion. Either the dynamic use docs are wrong or the notes with the perl ebuild. I've submitted it as a Doc bug as it's more likely someone forgot to add the 'threads' USE, than the ebuild is out of date???
probably the ebuild
this is a single ebuild use flag. only global use flags, which are used by many ebuilds are documented