Shouldn't cabal-install avoid reinstalling packages that are bundled with GHC? The cabal upgrade command has been disabled for that very reason.
I can see how that would be a problem though, as cabal probably has no way of knowing which packages were bundled with GHC. -- Robin 2010/1/7 Gwern Branwen <gwe...@gmail.com> > darcs Yi uses data-accessor-template, which uses template-haskell > Cabal-install naturally tries to install the latest, 2.4.0.0. > Fortunately, the latest doesn't compile on 6.10.2, because if it did, > as a core package, it would probably screw everything up. > > You have to do something like 'cabal install > --constraint='template-haskell < 2.4'. You can't edit yi.cabal easily > because it doesn't directly mention template-haskell - it's a dep of a > dep, and it's bad to (even using a flag conditional on GHC version) > specify stuff about indirect deps, I feel. > > Is there anyway data-accessor-template could be tweaked or fixed to > work in this situation without any user intervention? > > -- > gwern > > -- > Yi development mailing list > yi-devel@googlegroups.com > http://groups.google.com/group/yi-devel >
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