[GHC] #8148: ./configure IGNORES --with-gcc=gcc-4.8, can't build head on os x 10.8 with xcode 5 installed

[GHC]

#8148: ./configure  IGNORES --with-gcc=gcc-4.8, can't build head on os x 10.8 with
xcode 5 installed
---------------------------------+----------------------------------
        Reporter:  carter        |            Owner:
            Type:  bug           |           Status:  new
        Priority:  highest       |        Milestone:  7.8.1
       Component:  Compiler      |          Version:  7.7
      Resolution:                |         Keywords:
Operating System:  MacOS X       |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Comment (by thoughtpolice):

 Thanks. The GCC invocation is certainly a bug; we definitely want to use
 the configured C compiler.

 As for Clang, can you please test this:

 {{{
 $ clang -E -undef -traditional -o - -
 #define FOOBAR(a) test(a, # a)
 FOOBAR(xyz)
 ^D
 }}}

 Please specify the exact path to your `clang` to be 100% sure. This tests
 the behavior of hashes in `-traditional` mode.

 If everything is OK, you should see output like this:

 {{{
 # 1 "<stdin>"
 # 1 "<command-line>"
 # 1 "<stdin>"

 test(xyz, # xyz)

 }}}

 If you see output where the hash operator stringifies the argument, then
 there is a problem.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8148#comment:8>
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