[GHC] #8683: add "cpp program" and "cpp program options" to settings file

[GHC]

#8683: add "cpp program" and "cpp program options" to settings file
-------------------------------------+------------------------------------
        Reporter:  carter            |            Owner:  carter
            Type:  feature request   |           Status:  patch
        Priority:  high              |        Milestone:  7.8.3
       Component:  Compiler          |          Version:  7.8.1-rc2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #8439
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Comment (by carter):

 i've rebased on top the 7.8.2 tip of  7.8 branch
 https://github.com/cartazio/ghc/compare/ghc:ghc-7.8...rb_cpp_settings

 the failure matchup with using real GCC on OS X, wherein real GCC doesn't
 understand objective c,  (plus the perf stat issues that are generally
 afoot on several platform)

 {{{

 Unexpected results from:
 TEST="objc-hi objcpp-hi T5837 T3064 T4801 T6048"

 OVERALL SUMMARY for test run started at Thu Apr 10 19:10:37 2014 EDT
  0:23:53 spent to go through
     3920 total tests, which gave rise to
    12853 test cases, of which
     9276 were skipped

       26 had missing libraries
     3484 expected passes
       61 expected failures

        0 caused framework failures
        0 unexpected passes
        6 unexpected failures

 Unexpected failures:
    driver/objc    objc-hi [exit code non-0] (normal)
    driver/objc    objcpp-hi [exit code non-0] (normal)
    perf/compiler  T3064 [stat not good enough] (normal)
    perf/compiler  T4801 [stat not good enough] (normal)
    perf/compiler  T5837 [stat not good enough] (normal)
    perf/compiler  T6048 [stat not good enough] (optasm)

 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8683#comment:60>
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