VirtualBox OSE 3.1.0 and 3.1.2 have configure flags to disable xpcom. There should be a use flag in Gentoo to control that configure flag. This is useful becuase with xpcom enabled, virtualbox-ose will fail to build if Qt4 headers and libraries are not found on the system. Reproducible: Always Steps to Reproduce: 1.set virtualbox-ose use USE flags headless -qt4 2.build virtualbox-ose on a machine without Qt4 3. Actual Results: build fails (see build.log) Expected Results: build succeeds.
Created attachment 214544 [details] virtualbox-ose-3.1.0 build.log While not discernible from the build.log, the use flags are "additions headless vboxwebsrv -alsa -hal -opengl -pulseaudio -python -qt4 -sdk"
*** This bug has been marked as a duplicate of bug 295621 ***