Because some patches that decouple cpp from the c compiler should land

On Wednesday, April 16, 2014, Vincent Hanquez <tab@snarc.org> wrote:

On 2014-04-16 15:42, Carter Schonwald wrote:

I'd like to point out that cpphs is a thing. And that the near term plans for ghc are likely to lean on cpphs.

A huge constraint is that ghc and many other Haskell code bases use cpp, and unless we migrate everything any near term choice will essentially be a Haskell aware cpp.

I don't think anyone want to remove cpp anyhow in a near term.
I think this exercise is about offering another preprocessor that would be more suited to preprocess haskell (HPP).

Once ghc (or some standard) add this {-# LANGUAGE HPP #-} feature, projects can start migrating to the saner solution in their own time.

--
Vincent