[GHC] #6077: Respect XDG_CONFIG_HOME

[GHC]

#6077: Respect XDG_CONFIG_HOME
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        Reporter:  So8res            |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  None              |              Version:  7.4.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:  5966              |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
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Comment (by hvr):

 for the record, `directory` now has separate functions availabel for
 querying XDG dirs. So GHC now needs to decide if and how to support XDG
 base dirs

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6077#comment:4>
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