[GHC] #7904: GHC calls the cc1 of a gcc thats not the first in PATH

[GHC]

#7904: GHC calls the cc1 of a gcc thats not the first in PATH
---------------------------+------------------------------------------------
  Reporter:  carter        |          Owner:                
      Type:  bug           |         Status:  new           
  Priority:  normal        |      Milestone:                
 Component:  Compiler      |        Version:  7.6.3         
Resolution:                |       Keywords:                
        Os:  MacOS X       |   Architecture:  x86_64 (amd64)
   Failure:  None/Unknown  |     Difficulty:  Unknown       
  Testcase:                |      Blockedby:                
  Blocking:                |        Related:                
---------------------------+------------------------------------------------

Comment(by carter):

 mark lentczer has pointed out that the settings file  in <local ghc base
 dir>/lib/ghc<ghcversion>

 has a field  ("C compiler command", "/usr/bin/gcc"), and when i change it
 to be "clang"  or "gcc-4.8" to match the rest of the build process, things
 work or at least i discover new problems that aren't quite this one  :)

 @ igloo, i'll try that  shortly.  what are the default values for -pgml
 and -pgma?

 when i fix up the ghc settings file to point to my gcc, when i run the
 build i get

 {{{
 cabal configure ; cabal build                              1 ↵
 Resolving dependencies...
 Configuring numerics-0.1.0.0...
 Building numerics-0.1.0.0...
 Preprocessing library numerics-0.1.0.0...

 /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc8512_0/ghc8512_0.s:18:0:
     no such instruction: `vmovsd (%rsi), %xmm1'

 /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc8512_0/ghc8512_0.s:19:0:
     no such instruction: `vmovsd 8(%rsi), %xmm0'

 /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc8512_0/ghc8512_0.s:20:0:
     no such instruction: `vmulsd (%rdx), %xmm1,%xmm1'

 /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/ghc8512_0/ghc8512_0.s:21:0:
     no such instruction: `vmulsd 8(%rdx), %xmm0,%xmm0'
 }}}

 with the no such instruction verbiage going on for a few hundred more
 lines.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7904#comment:5>
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