This seems to have been confusing people, using both xlibs and xorg, etc.
- Avoided renaming local (and different) xlibs binding in gcc*.
- Fixed cases where both xorg and xlibs were used.
Hopefully everything still works as before.
Games utilizing LWJGL >= 2.4 && < 3.0 need this as the framework parses
display information from the command line output of xrandr[1] on Linux.
There are a number of LWJGL games on Steam currently.
[1]: 46f602f0c6/src/java/org/lwjgl/opengl/XRandR.java (L72)
Any reasonably new version of fontconfig does search that path by default,
and setting this globally causes problems, as 2.10 and 2.11 need
incompatible configs.
Tested: slim+xfce desktop, chrootenv-ed steam.
I have no idea why we were setting the global variable;
e.g., neither Fedora nor Ubuntu does that.
