Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gi-javascriptcore (dependency of jsaddle-webkitgtk-0.8.2.0)
rejecting: gi-javascriptcore-4.0.11, gi-javascriptcore-4.0.10,
gi-javascriptcore-4.0.9, gi-javascriptcore-4.0.8, gi-javascriptcore-4.0.7,
gi-javascriptcore-4.0.6, gi-javascriptcore-4.0.5, gi-javascriptcore-4.0.4,
gi-javascriptcore-4.0.3, gi-javascriptcore-4.0.2, gi-javascriptcore-4.0.1
(conflict: jsaddle-webkitgtk => gi-javascriptcore>=3.0.6 && <3.1)
trying: gi-javascriptcore-3.0.11
next goal: haskell-gi (dependency of gi-javascriptcore-3.0.11)
rejecting: haskell-gi-0.20 (conflict: requires pkg-config package
gobject-introspection-1.0>=1.32, not found in the pkg-config database)
rejecting: haskell-gi-0.18, haskell-gi-0.17.4, haskell-gi-0.17.3,
haskell-gi-0.17.2, haskell-gi-0.17.1, haskell-gi-0.17, haskell-gi-0.15,
haskell-gi-0.14, haskell-gi-0.13, haskell-gi-0.12, haskell-gi-0.11,
haskell-gi-0.10.2, haskell-gi-0.10.1, haskell-gi-0.10, haskell-gi-0.9,
haskell-gi-0.8 (conflict: gi-javascriptcore => haskell-gi>=0.20 && <1)
Dependency tree exhaustively searched.