[GHC] #11571: Need more intelligent conditionalization of libgcc rts symbols for x32

[GHC]

#11571: Need more intelligent conditionalization of libgcc rts symbols for x32
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        Reporter:  rwbarton                 |                Owner:
            Type:  bug                      |               Status:  new
        Priority:  normal                   |            Milestone:
       Component:  Runtime System (Linker)  |              Version:  8.1
      Resolution:                           |             Keywords:
Operating System:  Unknown/Multiple         |         Architecture:  Other
 Type of failure:  None/Unknown             |            Test Case:
      Blocked By:                           |             Blocking:
 Related Tickets:                           |  Differential Rev(s):
       Wiki Page:                           |
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Changes (by glaubitz):

 * Attachment "x32-use-native-x86_64-insn.patch" added.

 Minimal patch to support ghc on x32.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11571>
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