Without libX11, compilation of mirage fails at xmouse extension. I suggest including x11-libs/libX11 in RDEPEND. Reproducible: Always Steps to Reproduce: 1. Prepare pygtk without X. 2. emerge mirage Actual Results: build of xmouse fails, because of missing libX11. (sorry that I can't paste the fail log itself) Expected Results: working mirage. I'm using Prefix on OS X, and mirage isn't an official ebuild in it (yet). If this request will be accepted, I will file another bug for Prefix. It might be impossible to have pygtk without X on Linux, but is possible on OS X. I could have built mirage successfully with adding libX11 in RDEPEND. The inclusion of libX11 should not do harm on Linux, since it is implicitly in dependencies anyway.
Fixed in 0.9.4's ebuild