[GHC] #10627: cabal install of numeric-prelude hangs

[GHC]

#10627: cabal install of numeric-prelude hangs
-------------------------------------+-------------------------------------
              Reporter:  George      |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  high        |         Milestone:  7.10.2
             Component:  Compiler    |           Version:  7.10.2-rc2
              Keywords:              |  Operating System:  MacOS X
          Architecture:              |   Type of failure:  Compile-time
  Unknown/Multiple                   |  crash
             Test Case:              |        Blocked By:
              Blocking:              |   Related Tickets:
Differential Revisions:              |
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 While trying to do cabal install species with 7.10.2rc2 I discovered that
 it hangs compiling numeric-prelude in src/Algebra/RealRing.h. It doesn't
 seem to be busy computing as cpu usage is 0%
 {{{
 ghc -V
 The Glorious Glasgow Haskell Compilation System, version 7.10.1.20150630
 cabal install --verbose=3 numeric-prelude
 ...
 [39 of 97] Compiling Algebra.RealRing ( src/Algebra/RealRing.hs,
 dist/build/Algebra/RealRing.o )
 ...

 Result size of Float out(FOS {Lam = Just 0,
                               Consts = True,
                               OverSatApps = True})
   = {terms: 3,506, types: 3,224, coercions: 4}
 *** Common sub-expression:
 Result size of Common sub-expression
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10627>
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