Re: [GHC] #10574: «the 'impossible' happened» when compiling singletons

[GHC]

#10574: «the 'impossible' happened» when compiling singletons
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        Reporter:  zardoz            |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:  duplicate         |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Changes (by goldfire):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 This is likely a duplicate of #10251, fixed for GHC 7.10.2.

 In the meantime, if you say `--ghc-options=-O1` when installing via
 `cabal`, you should be able to get past this error.

 I am closing this ticket as a duplicate. If you think this is in error,
 please reopen.

 Thanks for reporting!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10574#comment:1>
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