Dear all I have a cabal package which defines in the cabal package several programs to be built such as: Executable: prog1 Main-is: examples/Prog1.hs Ghc-options: -Wall Executable: prog2 Main-is: examples/Prog2.hs Ghc-options: -Wall It's actually a library and the individual programs are a bunch of examples. When I work on one of these individually it's mildly annoying that runhaskell Setup.hs build builds all of them. I'd quite like to be able to do something like: runhaskell Setup.hs build prog1 or even just runhaskell Setup.hs prog1 to build only the first example. I know about the "Buildable" field in the cabal file, but I was kind of hoping there was a way to do this such that the cabal file doesn't need to be continually modified (and runhaskell Setup.hs configure --..... re-run). So is there a (standard) way to do this? If not, I suppose the best way to do it would be in the Setup.hs file, ie could do something like: processArgs :: [ String ] -> IO () processArgs [ "prog1" ] = <Something to build prog1 with all the configuration information> processArgs _ = defaultMainWithHooks myHooks if this is the best way, what should I have in the <Something .. > bit? regards allan