[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 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.

 Well, it would still necessitate bumping up GHC's internal copy of Cabal,
 since ghc-pkg needs to be compiled with the right version.

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

 Well, if those bits don't change, you can probably use ghc-pkg with a new
 Cabal and it probably will work. The whole point is if those types change
 then you have to clue in ghc-pkg.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8244#comment:28>
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