[GHC] #15446: compiling files in ghci on MacOS eventually results in malformed mach-o: load commands size (32800) > 32768

[GHC]

#15446: compiling files in ghci on MacOS eventually results in malformed mach-o:
load commands size (32800) > 32768
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        Reporter:  George      |                Owner:  (none)
            Type:  bug         |               Status:  patch
        Priority:  normal      |            Milestone:  8.6.1
       Component:  GHCi        |              Version:  8.4.3
      Resolution:              |             Keywords:
Operating System:  MacOS X     |         Architecture:  x86_64 (amd64)
 Type of failure:  GHCi crash  |            Test Case:
      Blocked By:              |             Blocking:
 Related Tickets:              |  Differential Rev(s):  Phab:D5021
       Wiki Page:              |
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Comment (by George):

 Replying to [comment:6 angerman]:
 Thanks for the quick response and fix! Would it be possible to give a high
 level summary of the bug and the fix?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15446#comment:8>
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