[GHC] #16199: GHC 8.6 bundles libraries that don't correspond to Hackage releases

[GHC]

#16199: GHC 8.6 bundles libraries that don't correspond to Hackage releases
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  highest           |            Milestone:  8.6.4
       Component:  libraries         |              Version:  8.6.3
  (other)                            |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14678            |  Differential Rev(s):
       Wiki Page:                    |  https://gitlab.haskell.org/ghc/ghc/merge_requests/139
-------------------------------------+-------------------------------------

Comment (by jrp):

 It would be great to get 8.6.4 out, if only to fix this bug, which is a
 real productivity killer as I seem to need to empty my `.ghc` and `.cabal`
 directories and reinstall the libraries needed for whatever my project
 using to get going.  Unless someone knows of a better workaround.
 {{{
 Resolving dependencies...
 cabal: Could not resolve dependencies:
 [__0] trying: directory-1.3.3.2 (user goal)
 [__1] next goal: ghc (user goal)
 [__1] rejecting: ghc-8.6.3/installed-8.6... (conflict: directory==1.3.3.2,
 ghc
 => directory==1.3.3.0/installed-1.3...)
 [__1] rejecting: ghc-8.6.1, ghc-8.4.3, ghc-8.4.1, ghc-8.2.2, ghc-8.2.1
 (constraint from user target requires ==8.6.3)
 [__1] fail (backjumping, conflict set: directory, ghc)
 After searching the rest of the dependency tree exhaustively, these were
 the
 goals I've had most trouble fulfilling: directory, ghc
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16199#comment:13>
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