[GHC] #10441: msys native python testsuite support doesn't work in some situations

[GHC]

#10441: msys native python testsuite support doesn't work in some situations
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        Reporter:  ezyang            |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Test Suite        |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Windows           |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by ezyang):

 If old msys is doing some terrible quoting, but new msys does not, can we
 just error if someone tries to use an old msys? I looked at the changelog
 for msys but didn't see anything that indicated that the heuristic
 changed. I see no documentation anywhere on the net about the heuristic.
 This makes me very grumpy.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10441#comment:4>
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