Whenever GNUstep-gui is updated, the backend must be updated as well. Perhaps a virtual/gnustep-gui-backend will allow both dgs (Display Ghostscript) and gnustep-back to be used. A simple PDEPEND should fix the problem: PDEPEND=">=dev-util/gnustep-back-${PV}" Reproducible: Always Steps to Reproduce:
Please note that differing versions of gnustep-gui and gnustep-back will conflict, i.e. gnustep-gui 0.8.3 and gnustep-back-0.8.0, since they expose internal APIs which are _VERY_ volatile
Forgot to mention, gnustep-back ebuilds should be altered as such: DEPEND="=dev-util/gnustep-gui-${PV} >=media-libs/tiff-3.5.7 >=media-libs/jpeg-6b-r2 x11-base/xfree"
the ebuilds have been updated in portage. Thanks for the suggestion.