In sys-devel/gettext-0.18.1.1-r3 rev. 1.5 USE="git" results in "./configure (..) --with-git --without-git" which disables git in autopoint. This bug was introduced during the last commit for Gentoo Bug #339547.
should be all set now in the tree; thanks for the report! Commit message: Fix typo with USE=git and cvs handling http://sources.gentoo.org/sys-devel/gettext/gettext-0.18.1.1-r3.ebuild?r1=1.5&r2=1.6