[GHC] #4032: Missing -I flag for windres on Windows

[GHC]

#4032: Missing -I flag for windres on Windows
---------------------------------+------------------------------------------
    Reporter:  batterseapower    |       Owner:                     
        Type:  bug               |      Status:  new                
    Priority:  normal            |   Component:  Build System       
     Version:  6.13              |    Keywords:                     
          Os:  Windows           |    Testcase:                     
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
---------------------------------+------------------------------------------
 The build system needs to invoke windres with -I to specify the path where
 ghci.ico should be found. Omitting the flag appears to work with some
 windres versions but not others (since noone else has spotted this
 failure!).

 Claus Reinke also had this issue (http://www.mail-archive.com/cvs-
 ghc at haskell.org/msg14636.html) but it looks like he never had time to
 write a patch.

 The attached patch fixes the Windows build for me (I'm using MingGW
 windres 2.17.50).

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4032>
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