With USE=emacs a file gsdoc.el is installed in the system. This file is never used if the user does not activate it by himself. And no user wants to do that, as the file is just badly coded, ooooold while there are far better modes to edit HTML (what this is for). Please drop it completely.
thanks, fixed
Reopening, since the ebuilds still inherit elisp-common.eclass which is not necessary.
elisp-common removed from all packages. Closing.