[GHC] #13255: aws package fails to build with master

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Mon Feb 20 18:41:47 UTC 2017


#13255: aws package fails to build with master
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:  simonpj
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"2d5be63d1140a409eb18d1a77d439053844f7ce7/ghc"
 2d5be63d/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="2d5be63d1140a409eb18d1a77d439053844f7ce7"
 Change -dppr-ticks to -dsuppress-ticks

 I spent about two hours today hunting fruitlessly for a simplifier
 bug (when fixing Trac #13255), only to find that it was caused by
 -ddump-X silently suppressing all ticks in Core.

 I think this has happened to me once before.

 So I've changed to make tick-printing on by default (like coercions,
 etc), with a flag -dsuppress-ticks (like -dsuppress-coercions) to
 suppress them.

 Blargh.

 -dppr-ticks is still there, but deprecated.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13255#comment:13>
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