[GHC] #4821: Passing -optP-traditional to the preprocessor breaks the build.

[GHC]

#4821: Passing -optP-traditional to the preprocessor breaks the build.
---------------------------------+------------------------------------------
    Reporter:  gwright           |       Owner:                     
        Type:  bug               |      Status:  new                
    Priority:  normal            |   Component:  Build System       
     Version:  7.0.1             |    Keywords:                     
    Testcase:                    |   Blockedby:                     
          Os:  Unknown/Multiple  |    Blocking:                     
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
---------------------------------+------------------------------------------

Comment(by gwright):

 The attached patch fixes this problem by filtering -optP-traditional from
 the options passed to ghc when building .cmm files.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4821#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler