Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: gi-pango (user goal)
[__0] rejecting: gi-pango-1.0.24 (conflict: pkg-config package pango(==1.0 ||
>1.0) && <2, not found in the pkg-config database)
[__0] rejecting: gi-pango-1.0.23, gi-pango-1.0.22, gi-pango-1.0.21,
gi-pango-1.0.20, gi-pango-1.0.19, gi-pango-1.0.18, gi-pango-1.0.16,
gi-pango-1.0.15, gi-pango-1.0.14, gi-pango-1.0.13, gi-pango-1.0.12,
gi-pango-1.0.11, gi-pango-1.0.10, gi-pango-1.0.9, gi-pango-1.0.8,
gi-pango-1.0.7, gi-pango-1.0.6, gi-pango-1.0.5, gi-pango-1.0.4,
gi-pango-1.0.3, gi-pango-1.0.2, gi-pango-1.0.1, gi-pango-0.1.38.15,
gi-pango-0.1.38.14, gi-pango-0.1.38.13, gi-pango-0.1.38.12,
gi-pango-0.1.36.12, gi-pango-0.1.38.10, gi-pango-0.1.36.11,
gi-pango-0.1.36.10, gi-pango-0.1.36.9, gi-pango-0.1.36.8 (constraint from user
target requires ==1.0.24)
[__0] fail (backjumping, conflict set: gi-pango)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-pango