[GHC] #15540: GHCi does not follow the XDG Base Directory Specification

[GHC]

#15540: GHCi does not follow the XDG Base Directory Specification
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        Reporter:  rszibele          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  GHCi              |              Version:  8.0.2
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by potato44):

 > The package database would also belong in `$XDG_CACHE_HOME/ghc`

 I don't think this is quite right, I believe you are meant to be able to
 delete the cache directory
 without ill effect. I believe the correct directory would be
 `$XDG_DATA_HOME/ghc`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15540#comment:3>
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