[Haskell-cafe] c2hs on mac

Ruben Zilibowitz r.zilibowitz at student.unsw.edu.au
Thu Apr 12 04:55:33 EDT 2007

Ok I managed to check out a version from darcs. Now this is happening:
./Setup.hs build
Preprocessing executables for c2hs-0.14.6...
Setup.hs: c2hs/c/CLexer.x: no alex preprocessor available

The installation instructions don't mention that I need the alex  
package. I guess I can just install it and try again. Are there any  
other prerequisites though?


On 12/04/2007, at 5:30 PM, Duncan Coutts wrote:

> On Thu, 2007-04-12 at 16:02 +1000, Ruben Zilibowitz wrote:
>> I can't even check out the darcs version from the repository because
>> that gives me an error (on applying patch 107/256 from memory). So I
>> am using the tarball for c2hs-0.14.5. Here is the problem:
> Ah, the problem with case sensitive file names. I've made a new
> checkpoint in the darcs repo so if you use darcs get --partial then  
> you
> can avoid having to download and apply the problematic patch. So give
> this another go:
> darcs get --partial http://darcs.haskell.org/c2hs/
>> ./Setup.hs:11:57:
>>      Couldn't match expected type
> [..]
> This was due to changes in the cabal api. In the darcs version of c2hs
> I've removed all the custom code from Setup.hs and found better  
> ways of
> doing it. We need a new c2hs release, but I'm still somewhat in the
> middle of improving the parser and I'd like to do at least a bit of
> testing before making a release :-)
>> I have ghc 6.6 installed. I also have ghc 6.7.x installed in a
>> different location. I would like to be able to use c2hs with ghc
>> 6.7.x if possible.
> Try the darcs version.
> uncan

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