[Haskell-cafe] extension to filter with external program (was: Current status of Mavericks CPP)

[Mikhail Glushenkov]

Hi,

On 16 April 2014 13:29, Tobias Florek <haskell at ibotty.net> wrote:
> hi,
>
> i may certainly be missing something, as i only used cpp in haskell for
> conditional compilation. having said that:
>
> i'd like to have (instead of LANGUAGE CPP) the following extension.
>
> LANGUAGE FilterWithExternalProgram my_cpp

Use custom preprocessor support in Cabal or 'ghc -cpp -pgmP
/path/to/custom_cpp' .