[GHC] #7639: Fix installation issues with cross compiling + honour Stage1Only properly

[GHC]

#7639: Fix installation issues with cross compiling + honour Stage1Only properly
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Reporter:  StephenBlackheath      |          Owner:                  
    Type:  bug                    |         Status:  patch           
Priority:  normal                 |      Component:  Compiler        
 Version:  7.7                    |       Keywords:                  
      Os:  Unknown/Multiple       |   Architecture:  Unknown/Multiple
 Failure:  Installing GHC failed  |      Blockedby:                  
Blocking:                         |        Related:                  
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Changes (by StephenBlackheath):

  * status:  new => patch


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7639#comment:1>
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