Re: [arch-haskell] ghc: /usr/share/doc/ghc/html/libraries/hslogo-16.png exists in filesystem

On Fri, Oct 19, 2012 at 12:42 PM, Fabio Riga wrote:

2012/10/18 Mateusz Loskot

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On 13 October 2012 11:20, Mateusz Loskot wrote:

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mloskot ~ $ sudo pacman -Syu ... error: failed to commit transaction (conflicting files) ghc: /usr/share/doc/ghc/html/libraries/hslogo-16.png exists in filesystem ghc: /usr/share/doc/ghc/html/libraries/synopsis.png exists in filesystem Errors occurred, no packages were upgraded.

We've diverted the thread a little bit from my original question which seems still unanswered yet.

Does it mean currently there is no reliable cure for the update problem?

Now I updated to ghc-7.6 and the method I already exposed just worked.

1. pacman -Rcs ghc 2. rm -r /usr/share/doc/ghc 3. pacman -S ghc cabal-install haskell-whatever

Those file wasn't in any package before, so point 2 is mandatory.

I also agree that deinstallling and reinstalling everything Haskell-related is very bad, but this is far more comfortable than using cabal and having 10 versions of every package installed (and likely broken). As Haskell programs are statically compiled, I really don't see the point in using such a tool like hsenv. I stick with the archhaskell system.

Yes, it's bad, but not necessary. The spurious png-files need to be removed manually, but there is no strong need to remove ghc and all that depends on it. You will see a few warnings, but they are "under control", basically they are unavoidable when combining ghc-pkg and pacman. I'll be happy to elaborate more on this, if you want, but it'll have to wait until I'm at my laptop. /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus