On Friday 22 April 2005 09:17, Isaac Jones wrote:

Benjamin Franksen <benjamin.franksen@bessy.de> writes:

...

I finally succeeded using cabal for a project that uses hsc2hs. My problem was/is I need to give special options to hsc2hs, for instance a different template header file to use. Cabal doesn't support this at the moment.

I propose to give the user a bit more flexibility with regard to preprocessors, i.e. add some more tags to the .cabal file, like

hsc2hs-options, cpp-options, ...

I made the necessary changes for hsc2hs-options in a few minutes

Did you alter the Cabal library itself?

Yes.

If so, then that won't work when you go to distribute it to others, since they won't have your altered cabal.

Yes, that's why I suggested to add such tags to the official version.

You could do this in the UserHooks, by over-riding the hsc2hs preprocessor in your Setup.lhs file. If you grab the cabal source, there's an example in the tests directory called withHooks that might help. That, and looking at the cabal source itself :)

...

Another question: Is there a proposal how to (better) support test executables for a library package? (I remember that this topic has been discussed but can't remember any conclusion).

With the latest (darcs / cvs) version of Cabal, you can add a UserHook for running tests, then there's a target ./setup test that'll execute that hook.

Ok, I will try to find out how to use user hooks for what I need.

We put the hook in Cabal 1.0, but forgot to add the command, so nothing calls it. Feel free to add the test hook so that people using newer versions of cabal can run your tests :)

Yup. (Not that the stuff is ready for distribution.) Thanx, Ben