id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	difficulty	ghcversion	platform
519	.cpphs files are processed using GHC's built-in CPP instead of cpphs	Deewiant		Currently, if you need to use `cpphs`, the only way of going about it is to define a custom `PreProcessor` in your `Setup.hs` and using it as an override in `hookedPreProcessors`. A seemingly sensible way of making this easier would be that `.cpphs` files prefer being processed by `cpphs` instead of GHC's built-in CPP. (Most people probably just use `{-# LANGUAGE CPP #-}` in a `.hs` for the latter anyway.)	enhancement	new	normal		Cabal library	1.6.0.2	normal				very easy (<1 hour)