[GHC] #10192: Template Haskell crashes when building yesod-core package

[GHC]

#10192: Template Haskell crashes when building yesod-core package
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        Reporter:  DanielDiaz        |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by snoyberg):

 Seems like the bug is that it's forcing a new installation of template-
 haskell, which isn't working. I'd recommend adding a constraint requiring
 `template-haskell installed` and see if that fixes your problem. I would
 definitely advise against such an upgrade.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10192#comment:1>
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