ghc-transformers alex ghc-deepseq ghc-html ghc-HUnit ghc-OpenGL ghc-stm ghc-syb ghc-xhtml : ghc-mtl ghc-GLUT ghc-parallel ghc-text : ghc-fgl ghc-parsec ghc-QuickCheck ghc-regex-base happy : ghc-haskell-src ghc-network ghc-regex-posix : ghc-regex-compat ghc-cgi ghc-HTTP ghc-zlib : cabal-install :