[GHC] #4012: Compilation results are not deterministic

[GHC]

#4012: Compilation results are not deterministic
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              Reporter:  kili        |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  6.12.2
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Difficult (2-5
       Type of failure:  Other       |  days)
             Test Case:              |       Blocked By:
              Blocking:              |  Related Tickets:
Differential Revisions:              |
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Comment (by simonpj):

 Thanks for producing a patch. THAT is the best way to move the ticket
 forward!

 I've added a saying: The above patches look commendably small.  But the
 resulting code contains absolutely no clue about the importance of the way
 those particular lines of code are written.  Please, I beg,
  * write a Note [Deterministic builds] somewhere,
  * describe the issues in the note,
  * mention the ticket #4012 for more background
  * refer to the Note from the places in the code that are carefully
 written to support determinism

 See our [wiki:Commentary/CodingStyle Coding Style guidelines].

 Thank you!

 Does that close the ticket?  Or are there further determinism issues?

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:52>
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