Resolving dependencies... Downloading hsmagick-0.1... Configuring hsmagick-0.1... cabal: The pkg-config package GraphicsMagick version >=1.1.10 is required but it could not be found. Failed to install hsmagick-0.1 cabal: Error: some packages failed to install: hsmagick-0.1 failed during the configure step. The exception was: ExitFailure 1