[GHC] #12741: --numa doesn't work even if libnuma is available

[GHC]

#12741: --numa doesn't work even if libnuma is available
-------------------------------------+-------------------------------------
           Reporter:  darshan        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Runtime        |           Version:  8.0.1
  System                             |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 The configure script set USE_LIBNUMA to 1 if numa exists however the code
 checks for HAVE_LIBNUMA.

 From the main directory,


 {{{
 ./configure && make clean && make boot && make
 cd nofib/parallel/queens
 ../../../inplace/bin/ghc-stage2 Main.hs -rtsopts -threaded
 ./Main 15 +RTS -N24 -s -A64m --numa
 }}}


 It fails saying

 {{{
 Main: --numa: OS reports NUMA is not available
 }}}

 https://phabricator.haskell.org/D2329 introduced this error.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12741>
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