[C2hs] [c2hs] #47: Void functions produce a "defined but not used" warning for the result

[c2hs]

#47: Void functions produce a "defined but not used" warning for the result
--------------------+-------------------------------------------------------
 Reporter:  guest   |        Type:  defect 
   Status:  new     |    Priority:  normal 
Milestone:          |   Component:  general
  Version:  0.16.0  |    Keywords:         
--------------------+-------------------------------------------------------
 Declaring a {# fun ... #} with return type `()' leads to the following
 warning from GHC:

 Warning: Defined but not used: `res'

 Please consider either using res or declaring it as _ in this case, to
 prevent the warning.

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Ticket URL: <http://hackage.haskell.org/trac/c2hs/ticket/47>
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