[GHC] #9873: Use CONF_GCC_LINKER_OPTS_STAGE2 only in stage2

[GHC]

#9873: Use CONF_GCC_LINKER_OPTS_STAGE2 only in stage2
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              Reporter:  nomeata     |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Build       |          Version:  7.9
  System                             |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by nomeata):

 This is the patch I use in the Debian package for now. Maybe it is good
 enough already?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9873#comment:1>
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