[GHC] #16240: Core visible conditional compilation/static definition/code selection based upon static key values

[GHC]

#16240: Core visible  conditional compilation/static definition/code selection
based upon static key values
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        Reporter:  carter            |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.7
      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 carter):

 agreed. I think "new style HPP" would probably involve ghc understanding
 that the predicates around eg GHC version and package version are
 "externally fixed" and cant be fudged/checked under a single GHC
 environment.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16240#comment:3>
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