pkg-config if possible. Switch back to xlib/winlib when other backends
don't satisfy dependancies.
* config.make, config.h: Update to match.
* GNUmakefile (SUBPROJECTS): Add Fonts
* Fonts: New folder with default nfont
* Source/x11/GNUmakefile: Remove unneeded file.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@20783 72102866-910b-0410-8b05-ffd578937521