On Wed, Nov 7, 2012 at 2:09 PM, Matthias Kilian <k...@outback.escape.de>wrote:
> Small safety hint for distributors: the haskell-platform.cabal file
> mandates network == 2.3.1.0 and HTTP == 4000.2.5, but the latter
> by default depends on network >= 2.4 && < 2.5. So if you want to
> avoid to include the same package in different versions (which at
> least OpenBSD does), you'll have to configure HTTP with -fnetwork23
> (which changes the dependency to network < 2.4).
>
I think HTTP can solve this in a better way, instead of using
#ifdef NETWORK23
uriDefaultTo a b = maybe a id (a `relativeTo` b)
#else
uriDefaultTo a b = a `relativeTo` b
#endif
it could use
#ifdef MIN_VERSION_network(2,4,0)
uriDefaultTo a b = a `relativeTo` b
#else
uriDefaultTo a b = maybe a id (a `relativeTo` b)
#endif
That way it will compile on both old and new network versions without any
user interventions (including cabal flag).
-- Johan
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