[Haskell-cafe] How to disable document in .cabal file?

Hi, I have enabled document in .cabal/config, so I could get document every time I installed libraries or so. But when I compile my own applications, it also takes time on generating non-exist documents. How to disable it just for this project? -- 竹密岂妨流水过 山高哪阻野云飞 And for G+, please use magiclouds#gmail.com.