[Hackage] #199: when installing a new version of GHC, there should be a way to upgrade my packages

[Hackage]

#199: when installing a new version of GHC, there should be a way to upgrade my
packages
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  Reporter:  guest               |        Owner:         
      Type:  defect              |       Status:  new    
  Priority:  normal              |    Milestone:         
 Component:  cabal-install tool  |      Version:  1.2.3.0
  Severity:  normal              |   Resolution:         
  Keywords:                      |   Difficulty:  normal 
Ghcversion:  6.8.2               |     Platform:  Linux  
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Comment (by duncan):

 We have a tool for gentoo that does exactly that. It goes through the old
 ghc package.conf (well actually, a separate set of files that each gentoo
 ebuild installs) and rebuilds all the available packages for the new ghc.

 We'd have to do it in a rather sloppy way since we do not know that each
 registered package was actually installed by cabal-install or is available
 from hackage. Also, many packages would fail to build with new ghc so we'd
 want to not stop when the first package fails but produce a report at the
 end saying which old packages were unavailable or failed to rebuild.

 Such a sloppy mode, producing a report would also be very useful for
 general hackage QA.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/199#comment:1>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects