Following commit makes it necessary to have gserrors.h installed on the final system. http://git.ghostscript.com/?p=ghostpdl.git;a=commit;f=psi/ierrors.h;h=640801c0fd5527c7f183549df4fd2da365e427d4 This is currently not the case and leads to https://bugs.gentoo.org/show_bug.cgi?id=563540
Sorry, oversight on my part. Fixed in: http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=feafe5e5