[GHC] #8244: Removing the Cabal dependency

[GHC]

#8244: Removing the Cabal dependency
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              Reporter:  nh2         |            Owner:  duncan
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.6.3
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:  D172        |
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Comment (by refold):

 ezyang: What I had in mind was upgrading, say, Cabal 1.22 -> 1.24 when
 going from GHC 7.10.2 to GHC 7.10.3. Since GHC API will no longer depend
 on Cabal, this should be less of a problem.

 > So, the only way to make Cabal separately upgradeable is by siphoning
 ghc-pkg off into a proper package, relaxing the tight coupling and
 upgrading it when you upgrade Cabal.

 Is splitting the parts of Cabal ghc-pkg uses into a separate library out
 of the picture?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8244#comment:27>
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