[GHC] #11168: Cross build broken in commit 7af29da05d

[GHC]

#11168: Cross build broken in commit 7af29da05d
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        Reporter:  erikd             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Build System      |              Version:  7.11
      Resolution:                    |             Keywords:  cross-compile
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by hvr):

 Can you try if
 http://git.haskell.org/ghc.git/commitdiff/refs/heads/wip/T11168 changes
 anything?

 That patch moves the AC_USE_SYSTEM_EXTENSIONS macro to a later point at
 which the CC setting should be already locked (rather than triggering a
 premature CC detection)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11168#comment:5>
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