[GHC] #10458: GHCi fails to load shared object (the 'impossible' happened)

[GHC]

#10458: GHCi fails to load shared object (the 'impossible' happened)
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        Reporter:  rleslie     |                Owner:  trommler
            Type:  bug         |               Status:  patch
        Priority:  high        |            Milestone:  8.0.1
       Component:  GHCi        |              Version:  7.10.1
      Resolution:              |             Keywords:
Operating System:  Linux       |         Architecture:  Unknown/Multiple
 Type of failure:  GHCi crash  |            Test Case:
      Blocked By:              |             Blocking:
 Related Tickets:              |  Differential Rev(s):  Phab:D1631
       Wiki Page:              |
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Changes (by trommler):

 * status:  new => patch
 * failure:  None/Unknown => GHCi crash
 * differential:   => Phab:D1631
 * architecture:  x86_64 (amd64) => Unknown/Multiple


Comment:

 I uploaded a fix to Phabricator.

 I need some help with writing a regression test. For the test we need a C
 shared library that is not part of GHCi and that is available on all
 operating systems. Alternatively we could create our own little shared
 library. Does the testsuite have support to portably create a shared
 library?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10458#comment:23>
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