[Haskell-cafe] getting haddock to cooperate with cpp

[Felipe Almeida Lessa]

Are you using `cabal haddock` or calling haddock manually?

Cheers,

On Fri, Jul 12, 2013 at 3:25 PM, Evan Laforge <qdunkan at gmail.com> wrote:
> So haddock ignores {-# LANGUAGE CPP #-}, which makes it crash on any
> file that uses it.  But if you pass --optghc=-cpp, it runs CPP on
> everything, which makes it crash on any file that uses string gaps, or
> happens to contain a /*.  /* is rare and easily fixed, but not string
> gaps.
>
> It looks like a workaround would be to manually inspect the files for
> LANGUAGE CPP and run two haddock passes, but then I would have to get
> the two passes to cooperate creating a single TOC and index.
>
> Isn't there some way to run haddock on files that use CPP?
>
> In the broader scheme, it seems perverse to be using CPP in the first
> place.  I use it to configure imports and exports, e.g. to swap out a
> driver backend on different OSes, and to export more symbols when
> testing.  Would it make sense to have a haskell version of CPP that
> provides only these features (e.g. just #ifdef, #else, #endif, and
> #define) and leaves out the problematic C comments and backslash
> expectations?
>
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-- 
Felipe.