Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: bindings-gts (user goal)
rejecting: bindings-gts-0.1.1, bindings-gts-0.0.3, bindings-gts-0.0.2
(constraint from user target requires ==0.0.1)
rejecting: bindings-gts-0.0.1 (conflict: requires pkg-config package
gts>=0.7.6, not found in the pkg-config database)
Dependency tree exhaustively searched.