[GHC] #4520: startup code on Windows should use SetDllDirectory("")

[GHC]

#4520: startup code on Windows should use SetDllDirectory("")
-------------------------------------+-------------------------------------
              Reporter:  duncan      |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:  7.10.1
              Priority:  low         |          Version:  7.0.1
             Component:  Runtime     |         Keywords:
  System                             |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Unknown
      Operating System:  Windows     |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * cc: simonmar (added)
 * difficulty:   => Unknown
 * os:  Unknown/Multiple => Windows


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4520#comment:5>
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