[GHC] #7686: --with-libffi-header=<value> is not propagated to compiler/ghci/LibFFI.hsc compilation

[GHC]

#7686: --with-libffi-header=<value> is not propagated to compiler/ghci/LibFFI.hsc
compilation
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Reporter:  kgardas              |          Owner:  trommler        
    Type:  bug                  |         Status:  patch           
Priority:  normal               |      Component:  Build System    
 Version:  7.7                  |       Keywords:                  
      Os:  Unknown/Multiple     |   Architecture:  Unknown/Multiple
 Failure:  Building GHC failed  |      Blockedby:                  
Blocking:                       |        Related:  #7465           
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Comment(by kazu-yamamoto):

 I confirmed that this patch also fixes the hsc2hs problem in ticket #7806.
 Please merge this patch.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7686#comment:5>
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