fceux 2.2.1 had been released on 10 March 2013 (fceux 2.2.0 - 27 November 2012). Current version in the portage tree is 2.1.5 (04 June 2011). Please add ebuild for fceux 2.2.x branch to portage tree if it's possible. Reproducible: Always
Created attachment 351634 [details, diff] fceux-2.2.1.1-unzip.patch patch to prevent the compilation of the built in unzip
Created attachment 351636 [details] fceux-2.2.1.1.ebuild ebuild for version 2.2.1.1
fceux-2.2.2 is in portage.