[GHC] #8741: `System.Directory.getPermissions` fails on read-only filesystem

[GHC]

#8741: `System.Directory.getPermissions` fails on read-only filesystem
-------------------------------------+-------------------------------------
        Reporter:  hvr               |            Owner:  AlainODea
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:
       Component:  libraries/unix    |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  POSIX             |     Architecture:  Unknown/Multiple
 Type of failure:  Incorrect result  |       Difficulty:  Easy (less than 1
  at runtime                         |  hour)
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
-------------------------------------+-------------------------------------
Changes (by AlainODea):

 * owner:   => AlainODea
 * difficulty:  Unknown => Easy (less than 1 hour)
 * component:  libraries/directory => libraries/unix


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8741#comment:1>
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