xpra requires an Xvfb executable in order to function, so there should be some dependency there. I think right now the only way to get Xvfb installed is with the xvfb use flag set on x11-base/xorg-server so that may be the way to go. If there are other ways to install it then maybe a virtual package is needed for Xvfb. Reproducible: Didn't try Steps to Reproduce: 1. Emerge xorg with -xvfb 2. Emerge x11-wm/xpra (Tested only with 0.12.2) 3. "xpra start :500" 4. cat ~/.xpra/:500.log Actual Results: xpra shows this in log: 2014-04-22 08:58:50,044 Error starting Xvfb: [Errno 2] No such file or directory Expected Results: xpra shouldn't have emerged without a working Xvfb installed.
USE=server it is, apparently.
Latest ebuilds (xpra-0.13.9.ebuild and my ebuild on bug 530434 with xpra-0.14.12.ebuild) both contain: RDEPEND=" (...) server? ( x11-base/xorg-server[-minimal,xvfb] x11-drivers/xf86-input-void x11-drivers/xf86-video-dummy )" So I'd venture that this bug can be closed as resolved.