Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gtk2hs-cast-gtkglext (user goal)
rejecting: gtk2hs-cast-gtkglext-0.10.1.2 (global constraint requires
==0.10.1.1)
trying: gtk2hs-cast-gtkglext-0.10.1.1
trying: gtk2hs-cast-glib-0.10.1.1 (dependency of
gtk2hs-cast-gtkglext-0.10.1.1)
trying: glib-0.13.1.0 (dependency of gtk2hs-cast-glib-0.10.1.1)
next goal: gtkglext (dependency of gtk2hs-cast-gtkglext-0.10.1.1)
rejecting: gtkglext-0.12.5.0 (conflict: glib==0.13.1.0, gtkglext =>
glib>=0.12.5.0 && <0.13)
rejecting: gtkglext-0.12.1, 0.12.0 (conflict: glib==0.13.1.0, gtkglext =>
glib>=0.12 && <0.13)
rejecting: gtkglext-0.11.1, 0.11.0 (conflict: glib==0.13.1.0, gtkglext =>
glib>=0.11 && <0.12)
Backjump limit reached (change with --max-backjumps).