Re: 4th Cabal-1.1.6 release candiate

On Mon, 2006-10-09 at 20:34 +0100, Malcolm Wallace wrote:

Duncan Coutts writes:

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I could do with some help in fixing this.

You could try using the --unlit option of cpphs,

I think the Distribution.PreProcess.Unlit module was taken from an early version of cpphs.

Probably it came from hmake, whose version of Unlit strips leading whitespace for the purpose of recognising import statements (to make them begin at column 0). Better to steal the version from nhc98 or cpphs, which does not strip whitespace.

Right.

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One possibility would be to update to the latest cpphs unlit code, but for that of course we'd need your permission as the copyright licenses are different.

The unlit code in cpphs was largely taken from an early version of the Haskell Report.

Does that mean you do give us permission, or that you think we don't need your permission? I just want it to be clear, because cpphs is mostly LGPL and Cabal is BSD3.

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Is there anyway to identify the cpphs version from running it? I don't see any --version flag or similar.

cpphs --version exists, and is documented.

Oh yes, you're quite right. Sorry I must have mis-typed (and cpphs --help doesn't mention it - not that it should necessarily). To be honest I think it'd be easier at the moment to update the unlit code rather than using cpphs --unlit because detecting that we actually need cpphs isn't done 'til rather late, so I'm not sure if we stick a version check in up front that we wouldn't end up unnecessarily failing in the configure step. Isaac knows this bit of the code much better than I do. Duncan