[GHC] #14574: Template Haskell Uniq ~ Int leads to external interpreter cross compilation trouble

[GHC]

#14574: Template Haskell Uniq ~ Int leads to external interpreter cross compilation
trouble
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        Reporter:  luite             |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.3
      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 luite):

 I now have a patch that validates on `ghc-8.4` and `master`.

 Changing it to `type Uniq = Integer` turned out to be easiest because GHC
 doesn't know the data constructor for `Int64`. And I think `Integer` is
 actually more appropriate here.

 Some of the other types in the TH library are still machine sized, like
 operator precedence, but I think those don't lead to many problems in
 practice, since they tend to be user supplied.

 I still need to do a bit more testing with GHCJS to make sure that I
 haven't missed anything.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14574#comment:5>
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