[GHC] #9578: Quoting issue in configure.ac

[GHC]

#9578: Quoting issue in configure.ac
-------------------------------------+-------------------------------------
       Reporter:  gintas             |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  Build System       |                 Version:  7.9
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Easy (less than 1  |         Type of failure:  Building
  hour)                              |  GHC failed
     Blocked By:                     |               Test Case:
Related Tickets:                     |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------
 Some ghc invocations in configure.ac are not properly quoted, causing
 ./configure to spew errors if there are spaces in the path. See attached
 patch.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9578>
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