[arch-haskell] Re: [extra] haskell-parallel
phercek at gmail.com
Thu Nov 11 15:45:54 EST 2010
On 11/11/2010 09:34 PM, Xyne wrote:
> I don't mean that the versions would be included in the names, e.g.
> "haskell-foo-1.4", "haskell-foo-1.5" (that is overly kludgy). I mean that
> "haskell-foo" would contain foo 1.4, foo 1.5 and whatever other versions of
> foo that one could reasonably expect. Again, I'm just thinking out loud and I
> see possible problems with it already such as "bloat" from multiple versions,
> etc. It's mostly just curiosity about how Cabal manages to install the actual
> files on the system. We should be able to mirror this in the package itself.
In the case of libraries (where it matters) caball installs into
subdirectiories which are named like <libName>-<libVersion>. So there is
no file name conflict. When specifying this library as a dependency when
building something you can select which version you actually want. In
one project you must use only one version of a library (you cannot mix
two different versions of a lib into one exe - AFAIK).
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