[GHC] #8498: gcc hardcoded in build scripts! (ignores the --with-gcc= flag in configure)

[GHC]

#8498: gcc hardcoded in build scripts! (ignores the --with-gcc= flag in configure)
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        Reporter:  carter        |            Owner:
            Type:  bug           |           Status:  new
        Priority:  high          |        Milestone:  7.8.1
       Component:  Compiler      |          Version:  7.7
      Resolution:                |         Keywords:
Operating System:  MacOS X       |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Comment (by simonmar):

 I think I know why this is (came across it while looking at something
 else).  We ask the bootstrapping GHC for the name of the C compiler it
 uses, and this becomes `$(CC_STAGE0)`.  This is then used for compiling
 anything in stage 0, that is, things that we need during the build.  I'm
 not sure why it would be used when compiling the RTS though, that seems
 wrong.

 Probably what we want to do is make `--with-gcc` set `$(CC_STAGE0)`,
 overriding the value provided by the stage 0 GHC.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8498#comment:8>
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