Like https://bugs.gentoo.org/show_bug.cgi?id=940672 and https://bugs.gentoo.org/show_bug.cgi?id=940674 This package needs to be configured to trigger a rebuild when PERL_FEATURES USE flags are changed if the "perl" USE flag is used. I had to add "ithreads" to my PERL_FEATURES to make sys-process/parallel's parcat tool work, but that didn't trigger a rebuild of net-irc/weechat and now the /perl command and perl plugins don't work. $ weechat -t [ In the weechat buffer I read =!= │ Unable to load plugin "/usr/lib64/weechat/plugins/perl.so": /usr/lib64/weechat/plugins/perl.so: undefined symbol: PL_body_roots =!= │ If you're trying to load a script and not a C plugin, try command to load scripts (/perl, /python, ...) │ Plugins loaded: alias, buflist, charset, exec, fifo, fset, irc, logger, python, relay, script, spell, trigger, typing, xfer Instead of =!= │ Plugins loaded: alias, buflist, charset, exec, fifo, fset, irc, logger, perl, python, relay, script, spell, trigger, typing, xfer ] /perl eval print "hi"; =!= │ Unknown command "perl" (type /help for help), commands with similar name: oper, part, spell [Instead of | hi ] o/ emanuele6