Summary pretty much says it all; emacs-cvs tries to prune a file from ${D} in pkg_postinst, problem is that postinst is ran *after* merging has occurred. Meaning, pruning from ${D} doesn't do anything in pkg_postinst.
Looks like an aftermath of bug #162675 ... IMHO removal of the compressed dir file isn't the business of the Emacs ebuild, but should be handled by portage. However, prepinfo only removes dir{,.info}{,.gz,.bz2} in the top-level info directory, but does not care for its subdirectories.
(In reply to comment #1) > However, prepinfo only removes dir{,.info}{,.gz,.bz2} in the top-level info > directory, but does not care for its subdirectories. I contacted Zac Medico about that. Fixed, thanks for notification...
*** Bug 172100 has been marked as a duplicate of this bug. ***