[GHC] #15860: Hadrian build fails on FreeBSD

[GHC]

#15860: Hadrian build fails on FreeBSD
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        Reporter:  raichoo           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Build System      |              Version:  8.7
  (Hadrian)                          |
      Resolution:                    |             Keywords:
Operating System:  FreeBSD           |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by raichoo):

 Getting a `CallStack` is IMHO a nasty error. It's not handling the
 situation gracefully, that's what I wanted to say.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15860#comment:4>
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