[GHC] #16228: ghc-pkg and ghc do not agree about package with internal libraries

[GHC]

#16228: ghc-pkg and ghc do not agree about package with internal libraries
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        Reporter:  michaelpj     |                Owner:  (none)
            Type:  bug           |               Status:  new
        Priority:  normal        |            Milestone:
       Component:  ghc-pkg       |              Version:  8.6.3
      Resolution:                |             Keywords:
Operating System:  Linux         |         Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):
       Wiki Page:                |
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Comment (by michaelpj):

 This seems to only sometimes happen. In particular, depending on
 apparently unrelated downstream changes, the workaround of passing
 `-package foo` will occasionally stop working.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16228#comment:4>
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