[darcs-devel] [patch1631] require GHC 8, QuickCheck 2.8.2, zlib 0.6.1.2, suppress warnings and unused CPP pragmas

[Guillaume Hoffmann]

Hi Ben,

sorry, but I am going to disagree strongly on this one.

We have been failing at providing a Darcs release that can be built
with GHC 8.2, and at the same time we cannot make a 2.14 release since
Darcs has encoding problems under Windows [1].

With GHC 8.4 to be released in 2 months [2][3], we should focus on
making Darcs as 2018-proof as possible ASAP given our current
developer time availability, or else we are not going to be able to
make a 2.14 release in a reasonable time frame.

Guillaume

[1] http://bugs.darcs.net/patch1628
[2] https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-8.4.1
[3] https://ghc.haskell.org/trac/ghc/wiki/Migration/8.4

2018-01-21 14:23 GMT-03:00 Ben Franksen <bugs at darcs.net>:
>
> Ben Franksen <ben.franksen at online.de> added the comment:
>
> I agree with most of the changes here, except to require ghc-8. I would
> like us to postpone this until we have a good reason to do so, such as a
> package upgrade that depends on it or a significant number of CPP
> conditionals that would be obviated by this move. Currently, of the patch
>
> * remove outdated CPP conditionals on GHC version
>
> only one hunk is concerned with ghc 8 and if I roll this one back
> together with
>
>   * require GHC 8
>
> then I can compile with ghc-7.10.3 just fine; except I get this strange
> message from cabal new-build after it has linked everything:
>
> about to hand over
> setup: Error: Could not find module: Version with any suffix:
> ["gc","chs","hsc","x","y","ly","cpphs","hs","lhs"]
>
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> <http://bugs.darcs.net/patch1631>
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