Please rename bash completion to 'hg'. Currently it is not loaded by bash-completion-2.1-r1 - completion name doesn't match command name. - newbashcomp contrib/bash_completion ${PN} + newbashcomp contrib/bash_completion hg
+ 26 Jul 2013; Lars Wendler <polynomial-c@gentoo.org> mercurial-2.4.2.ebuild, + mercurial-2.5.4.ebuild, mercurial-2.6.2.ebuild, mercurial-2.6.3.ebuild, + mercurial-9999.ebuild: + Fixed bash completion. Thanks to Alexander Tsoy for reporting this in bug + #477826. + I've fixed this without a revbump. Please re-emerge the version you have installed to get bash-completion fixed.