[GHC] #10449: Out-of-tree tests broken on MinGW + native Python due to quoting of config.compiler

[GHC]

#10449: Out-of-tree tests broken on MinGW + native Python due to quoting of
config.compiler
-------------------------------+-------------------------------------------
        Reporter:  Rufflewind  |                   Owner:
            Type:  bug         |                  Status:  patch
        Priority:  normal      |               Milestone:  7.12.1
       Component:  Test Suite  |                 Version:  7.10.1
      Resolution:              |                Keywords:
Operating System:  Windows     |            Architecture:  Unknown/Multiple
 Type of failure:  Other       |               Test Case:
      Blocked By:              |                Blocking:
 Related Tickets:  #10441      |  Differential Revisions:  Phab:D911
-------------------------------+-------------------------------------------
Changes (by thomie):

 * status:  new => patch
 * differential:   => Phab:D911
 * milestone:   => 7.12.1


Comment:

 Can you test if the patch in Phab:D911 works (after it validates)? You
 should be able apply it by running 'arc patch --nobranch D911' and
 ignoring the warning about the parent commit not existing.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10449#comment:8>
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