Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: gi-cairo (user goal)
[__0] rejecting: gi-cairo-1.0.26 (conflict: pkg-config package
cairo-gobject(==1.0 || >1.0) && <2, not found in the pkg-config database)
[__0] rejecting: gi-cairo-1.0.25, gi-cairo-1.0.24, gi-cairo-1.0.23,
gi-cairo-1.0.22, gi-cairo-1.0.21, gi-cairo-1.0.20, gi-cairo-1.0.19,
gi-cairo-1.0.17, gi-cairo-1.0.16, gi-cairo-1.0.15, gi-cairo-1.0.14,
gi-cairo-1.0.13, gi-cairo-1.0.12, gi-cairo-1.0.11, gi-cairo-1.0.10,
gi-cairo-1.0.9, gi-cairo-1.0.8, gi-cairo-1.0.7, gi-cairo-1.0.6,
gi-cairo-1.0.5, gi-cairo-1.0.4, gi-cairo-1.0.3, gi-cairo-1.0.2,
gi-cairo-1.0.1, gi-cairo-0.1.14.15, gi-cairo-0.1.14.14, gi-cairo-0.1.14.13,
gi-cairo-0.1.14.12, gi-cairo-0.1.14.11, gi-cairo-0.1.14.10, gi-cairo-0.1.14.9,
gi-cairo-0.1.14.8 (constraint from user target requires ==1.0.26)
[__0] fail (backjumping, conflict set: gi-cairo)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-cairo