Re: [GHC] #8865: Cannot derive well-kinded instance of form ‘Category

GHC ghc-devs at haskell.org
Mon Mar 10 11:28:05 UTC 2014


#8865: Cannot derive well-kinded instance of form ‘Category
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        Reporter:  adinapoli                  |            Owner:
            Type:  bug                        |           Status:  closed
        Priority:  normal                     |        Milestone:  7.8.1
       Component:  Compiler                   |          Version:
      Resolution:  fixed                      |  7.8.1-rc2
Operating System:  MacOS X                    |         Keywords:
 Type of failure:  GHC rejects valid program  |     Architecture:  x86_64
       Test Case:                             |  (amd64)
        Blocking:                             |       Difficulty:  Unknown
                                              |       Blocked By:
                                              |  Related Tickets:
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Changes (by simonpj):

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


Comment:

 Fairly easy fix, fortunately. Thank you for reporting.

 It should be easy to merge, but it's a bit of a corner case, and we are
 really far into the 7.8 cycle, so it might be better not to

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8865#comment:5>
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