Resolving dependencies...
Configuring hsmagick-0.2...
cabal: The pkg-config package 'GraphicsMagick' version >=1.2 is required but
it could not be found.
Failed to install hsmagick-0.2
cabal: Error: some packages failed to install:
hsmagick-0.2 failed during the configure step. The exception was:
ExitFailure 1