[GHC] #11742: 'Strict' extension is incompatible with 'deriving' mechanism

[GHC]

#11742: 'Strict' extension is incompatible with 'deriving' mechanism
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        Reporter:  awson             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"db9e4eb4e3fe916df7a69da1b211083ad6068aff/ghc" db9e4eb/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="db9e4eb4e3fe916df7a69da1b211083ad6068aff"
 Move DFunUnfolding generation to TcInstDcls

 The desugarer had a fragile case to generate the Unfolding for a
 DFun. This patch moves the unfolding generation to TcInstDcls, where
 all the pieces are to hand.

 Fixes Trac #11742
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11742#comment:6>
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