You can specify the pre-processor in the `ghc-options' field in the
cabal file, e.g.
ghc-options: -pgmPcpphs
Francesco
On 23 December 2014 at 17:14, Brandon Allbery <[email protected]> wrote:
> On Tue, Dec 23, 2014 at 11:10 AM, Dominic Steinitz <[email protected]>
> wrote:
>>
>> How very clever of you and thank you very much. Changing ‘ to 1 does fix
>> the problem.
>>
>> I would have thought this would work
>>
>> cabal install --with-gcc=gcc-4.9
>>
>>
>> But sadly I still got the same error.
>
>
> I think that changes the gcc cabal uses to compile C code, but does not
> affect how ghc invokes cpp. Or put otherwise, there are too many ways that a
> C compiler can be dragged into the build pipeline (building C code
> explicitly [via cabal or via ghc foo.c, two different cases], wrapped FFI
> calls in ghc, -fvia-C, CPP, ...).
>
> --
> brandon s allbery kf8nh sine nomine associates
> [email protected] [email protected]
> unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
>
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