While emerging perl I noticed: * * PLEASE NOTE: If you want to compile perl-5.8 with * threading enabled , you must restart this emerge * with USE=ithreads emerge.... * Threading is not supported by all applications * that compile against perl. You use threading at * your own discretion. * Wouldn't it be better if it told them to add the line to their /etc/portage/package.use file instead?
This is valid (now) - when this statement was added, such conventions just didn't exist. Either a note as the user suggested, or simply a note saying it should be in your USE flags (since ithreads is only for [lib]perl).
closing finally - the entire block has been updated