[Haskell-cafe] cabal specify a "tested version", ghci target?
duncan.coutts at worc.ox.ac.uk
Sat Aug 12 09:20:41 EDT 2006
On Sat, 2006-08-12 at 03:52 +0200, Marc Weber wrote:
> I know I can use
> Build-Depends: lib == <version>, lib2 < version, lib3 >= version
> and so on.
> Do you think it would be useful to introducue some notation to indicate
> a "tested with" ?
> Reason, purpose: I think its sometimes the case that a author/ mantainer
> is quite busy with other projects and misses that some dependencies
> break things.. If you want to try out you're left with some compiler
> errors and a dependency and have to try out which version works.
> I would propose using this syntax:
> lib-1.3 >=1.1
> to indicate that lib 1.1 is required at leeast and tested with up to
> 1.3.. Cabal might then give a warning if you try to use 1.4 or greater
> "using newer version than tested" or similar..
> What do you think?
> Would this be useful?
Well there is actually already a "tested-with:" field that you can put
in a .cabal file, however at the moment it refers only to the Haskell
implementation, eg ghc-x.y, hugs-x.y etc not to versions of libraries.
Yes, I think it's a quite reasonable argument to extend this to include
exact versions of libraries that it has been tested with.
What do others think?
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