[GHC] #8374: `tcIfaceGlobal (local): not found` while compiling

[GHC]

#8374: `tcIfaceGlobal (local): not found` while compiling
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              Reporter:  bgamari     |            Owner:  thoughtpolice
                  Type:  bug         |           Status:  closed
              Priority:  high        |        Milestone:  7.10.1
             Component:  Build       |          Version:  7.7
  System                             |         Keywords:
            Resolution:  fixed       |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Building    |  Related Tickets:
  GHC failed                         |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by thomie):

 * status:  new => closed
 * resolution:   => fixed
 * architecture:  arm => Unknown/Multiple


Comment:

 I reproduced the error that bernalex mentioned using the steps from
 comment:22 and the patch from comment:24, using the 7.8.1 source code.

 Adding '-fno-warn-amp' to GhcLibHcsOpt made the problem go away.

 Since the problem does not occur with master, supposedly since Applicative
 is now a superclass of Monad, I am closing this ticket as fixed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8374#comment:34>
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