Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: not-gloss (user goal)
rejecting: not-gloss-0.7.4.0, 0.7.3.0, 0.7.2.1, 0.7.2.0, 0.7.1.1, 0.7.1.0,
0.7.0.2, 0.7.0.1, 0.7.0.0, 0.6.1.0, 0.6.0.1, 0.6.0.0, 0.5.0.5, 0.5.0.4,
0.5.0.3, 0.5.0.2, 0.5.0.1 (global constraint requires ==0.5.0)
trying: not-gloss-0.5.0
next goal: gloss (dependency of not-gloss-0.5.0)
rejecting: gloss-1.9.4.1, 1.9.3.1 (conflict: base==4.7.0.1/installed-e4b...,
gloss => base==4.8.*)
trying: gloss-1.9.2.1
next goal: OpenGL (dependency of gloss-1.9.2.1)
rejecting: OpenGL-2.12.0.1, 2.12.0.0, 2.11.1.0, 2.11.0.0, 2.10.0.2, 2.10.0.1,
2.10.0.0 (conflict: gloss => OpenGL==2.9.*)
trying: OpenGL-2.9.2.0
next goal: OpenGLRaw (dependency of not-gloss-0.5.0)
rejecting: OpenGLRaw-2.5.0.0, 2.4.1.0, 2.4.0.0, 2.3.0.0, 2.2.0.0, 2.1.0.0,
2.0.0.0, 1.5.0.1, 1.5.0.0, 1.4.0.0, 1.3.0.0 (conflict: not-gloss =>
OpenGLRaw==1.2.*)
rejecting: OpenGLRaw-1.2.0.0 (conflict: OpenGL => OpenGLRaw>=1.4.1.0 && <2)
rejecting: OpenGLRaw-1.1.0.2, 1.1.0.1, 1.1.0.0, 1.0.1.0, 1.0.0.0 (conflict:
not-gloss => OpenGLRaw==1.2.*)
Backjump limit reached (change with --max-backjumps).