[Haskell-cafe] Build without install, using cabal

Hi, I would like to include a few source files as 'executable' sections in a .cabal package description. However, although I do want to use main=mainDefault features, I do not want those packages to be installed when I run 'Setup.hs install'. Is it possible to do that? I believe there's no flag that indicates install step, since (I guess) flags are checked only at configure time. Thanks for your help, Maurício