[GHC] #16108: GHC --version doesn't show arch

[GHC]

#16108: GHC --version doesn't show arch
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        Reporter:  flip101           |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  8.6.3
      Resolution:                    |             Keywords:
Operating System:  Windows           |         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 bgamari):

 For what it's worth, I suspect you could use `ghc --info`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16108#comment:1>
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