[Haskell-cafe] Re: Bug in Cabal?

[Andrea Vezzosi]

On Tue, Feb 17, 2009 at 11:50 PM, Achim Schneider <barsoap at web.de> wrote:
> Martin Huschenbett <huschi at gmx.org> wrote:
>
>> $ cabal install ghci-haskeline
>> Resolving dependencies...
>> cabal.exe: dependencies conflict: ghc-6.10.1 requires process
>> ==1.0.1.1 however
>> process-1.0.1.1 was excluded because ghc-6.10.1 requires process
>> ==1.0.1.0
>>
> cabal uninstall process-1.0.1.1 is what you want to do,

except "cabal uninstall" doesn't exist (yet) and you meant "ghc-pkg
unregister" i guess.

> and never, ever[1] use cabal upgrade.
>
> If you're interested in the gory details and why it's a bug while at
> the same time not being one, there's a lengthy thread starting with
> <http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/51759>
>
>
> [1] Until cabal becomes smarter
>
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