[GHC] #11231: GHC's configure script does not honour CC env var

[GHC]

#11231: GHC's configure script does not honour CC env var
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        Reporter:  hvr               |                Owner:
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Build System      |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #9983             |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by rwbarton):

 I think some of the other variables in that output you mention do not
 actually work either, so just fixing `CC` doesn't really reduce user
 confusion overall.

 This doesn't fix a real bug, so does it really make sense to merge this to
 8.0? How much testing have you done in unusual configurations, e.g.,
 cross-compiling?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11231#comment:5>
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