The problem is automake 1.8.5 and missing files. I'm attaching patch on ebuild to regenerate missing files before configure.
Created attachment 34073 [details, diff] patch on ebuild
ok, this beats the WANT_AUTOMAKE=1.4 hack I did this morning
fixed in portage, thanks sekretarz. if you IRC, can you please /msg me on irc.freenode.net (I'm seemant).