[GHC] #12983: Loading temp shared object failed: TemplateHaskell and recompilation

[GHC]

#12983: Loading temp shared object failed: TemplateHaskell and recompilation
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        Reporter:  StefanWehr        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  template
                                     |  haskell, recompilation
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by ezyang):

 Yep, it looks like we are not recompiling even though the module
 dependencies of a module we import have changed.

 BTW, this looks similar to #7277 but it's not; the module which uses TH is
 correctly recompiled.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12983#comment:5>
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