Created attachment 361776 [details, diff] awesomenauts-2013.5.21.3.ebuild.diff This patch adds true multilib support for awesomenauts. Unfortunately i don't own this game thus couldn't test my changes. Furthermore this patch also depends on the changes for nvidia-cg-toolkit (see bug #466832). Note: Even though awesomenauts isn't stable anyway, those changes can't go stable as long abi_x86_32 isn't marked stable.
I believe the ebuild in portage supports multilib