[GHC] #11054: GHC on Windows could not use more than 64 logical processors

[GHC]

#11054: GHC on Windows could not use more than 64 logical processors
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        Reporter:  varosi            |                Owner:  Phyx-
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Runtime System    |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12602            |  Differential Rev(s):  Phab:D2533
       Wiki Page:                    |
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Comment (by varosi):

 It gives me that error:

 {{{
 D:\ghc-8.1.20160926\bin>ghc -rtsopts some.hs
 [1 of 1] Compiling Main             ( some.hs, some.o )

 <no location info>: error:
     Warning: Couldn't figure out C compiler information!
              Make sure you're using GNU gcc, or clang
 ghc: could not execute: E:/ghc-
 dev/msys64/home/Tamar/ghc/inplace/mingw/bin/gcc.exe
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11054#comment:19>
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