[Haskell-cafe] passing cpp options to c2hs from cabal

[Chris Casinghino]

This works great, thanks!

As a footnote: I doubt I will be the only one is confused because
"cc-options" get passed to c2hs but "cpp-options" don't.  Perhaps the
cabal designers should revisit this choice.

--Chris

On Sat, Feb 27, 2010 at 3:44 PM, Daniel Fischer
<daniel.is.fischer at web.de> wrote:
> Am Samstag 27 Februar 2010 21:27:27 schrieb Chris Casinghino:
>> Hi all,
>>
>> I have a question about cpp, c2hs and cabal.  The short version:
>>
>> What can I put in my cabal file to get "-cppopts=-U__BLOCKS__" passed
>> as an argument in calls to c2hs?
>
> Maybe
>
> cc-options: -U__BLOCKS__
>
> is worth a try.
>
>>
>> Longer story:
>>
>> I need to set up my cabal file so that c2hs gets this extra option to
>> make things build smoothly on some macs.  If I run cabal from the
>> command line, I can pass it:
>>
>> cabal install --c2hs-options='--cppopts=-U__BLOCKS__'
>>
>> And this works great.  I need to make my .cabal file do this, but
>> c2hs-options doesn't seem to be accepted there.  I tried:
>>
>> cpp-options:  "-U__BLOCKS__"
>>
>> But if I run cabal install -v I can see this isn't being passed on to
>> c2hs:
>>
>> ...
>> /home/ccasin/.cabal/bin/c2hs --include=dist/build
>> --cppopts=-D__GLASGOW_HASKELL__=610 --cppopts=-Icontrib/libpuz/include
>> --output-dir=dist/build --output=Codec/Game/Puz/Internal.hs
>> ./Codec/Game/Puz/Internal.chs
>> ...
>>
>> Thanks!
>>
>> --Chris Casinghino
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