GNU Emacs upstream has incorporated Git support, which will collide with the code installed by dev-util/git with USE=emacs. There is no official GNU Emacs release yet (it will be 22.2 available this year), but we have live ebuilds that include it. Patches to follow
Created attachment 132538 [details] sitefile for ${FILESDIR} This loads git support files installed by ebuild only if the currently installed Emacs has no Git support. File name is the same as for old ebuilds, the code should not interfere, but you may choose a higher leading number (72) at your own wish.
Created attachment 132540 [details, diff] Patch for ebuild - adds quotes around an instance of ${S} (minor QA) - add a file to the Emacs support files directory so Emacs does not automatically regard files installed there - add a message to pkg_postinst about included support in Emacs If you change the name of the site file (previous attachment), don't forget to adjust it in the ebuild.
In dev-util/git-1.5.3.4 . Thanks. - ferdy