[GHC] #14274: Host normalization causes problem with configure.

[GHC]

#14274: Host normalization causes problem with configure.
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           Reporter:  Phyx-             |             Owner:  (none)
               Type:  bug               |            Status:  new
           Priority:  normal            |         Milestone:
          Component:  Build System      |           Version:  8.2.1
           Keywords:                    |  Operating System:  Windows
       Architecture:  Unknown/Multiple  |   Type of failure:  Other
          Test Case:                    |        Blocked By:
           Blocking:                    |   Related Tickets:
Differential Rev(s):                    |         Wiki Page:
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 The host normalization we do causes problems with configure, because we
 change the triple autoconf seems to think we're always cross compiling on
 Windows. So `AC_CHECK_TARGET_TOOL` always fails and ends up looking for
 `-<toolname>`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14274>
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