[GHC] #8781: check if GNU nm is really needed and if so let configure detect gnm

[GHC]

#8781: check if GNU nm is really needed and if so let configure detect gnm
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        Reporter:  maeder               |            Owner:  kgardas
            Type:  feature request      |           Status:  patch
        Priority:  normal               |        Milestone:
       Component:  Build System         |          Version:  7.8.1-rc1
      Resolution:                       |         Keywords:
Operating System:  Solaris              |     Architecture:  x86
 Type of failure:  Building GHC failed  |       Difficulty:  Unknown
       Test Case:                       |       Blocked By:
        Blocking:                       |  Related Tickets:
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Comment (by kgardas):

 BTW: Is this issue a regression? (let's say in comparison with 7.6.x?) If
 it is, then we may attempt to push it to Austin for inclusion in 7.8.1? If
 not, then let's wait and ask for merge into HEAD?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8781#comment:5>
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