GnuCash 1.8.8 ebuild has the same problem as in bug #27978 http://bugs.gentoo.org/show_bug.cgi?id=27978 and can be fixed the same way, by using gnucash-docs-1.8.4 instead of 1.8.3 Reproducible: Always Steps to Reproduce: 1. emerge =app-office/gnucash-1.8.8
thanks, fixed in portage.