[GHC] #5918: hsc2hs forces wordsize (i.e. -m32 or -m64) to be the choice of GHC instead of allowing a different (or no/default choice)

[GHC]

#5918: hsc2hs forces wordsize (i.e. -m32 or -m64) to be the choice of GHC instead
of allowing a different (or no/default choice)
---------------------+------------------------------------------------------
 Reporter:  Atze     |          Owner:        
     Type:  bug      |         Status:  new   
 Priority:  normal   |      Component:  hsc2hs
  Version:  7.4.1    |       Keywords:        
       Os:  MacOS X  |   Architecture:  x86   
  Failure:  Other    |       Testcase:        
Blockedby:           |       Blocking:        
  Related:           |  
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 I am not sure whether to call this a bug as it does not cause a failure of
 GHC but a failure of UHC which also uses hsc2hs.

 The problem occurs when UHC builds for a different wordsize than GHC, in
 particular UHC 64 bits, GHC 32 bits. The wrapper then forces -m32 when
 running hsc2hs via the environment variable HSC2HS_EXTRA. This cannot be
 turned off. A (temporary) solution is to uncomment the following lines in
 the wrapper script /usr/bin/hsc2hs:


 {{{
 #        -c*)          HSC2HS_EXTRA=;;
 #        --cc=*)       HSC2HS_EXTRA=;;
 }}}

 This turns off the extra flags when a C compiler is explicitly specified,
 amongst which the -m32, and just lets the user define (or not define) the
 required flags when another compiler is explicitly used.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5918>
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