[haskeline] #116: control characters in prompt lead to deadlock on 64 bit system

[haskeline]

#116: control characters in prompt lead to deadlock on 64 bit system
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Reporter:  phercek   |       Owner:     
    Type:  defect    |      Status:  new
Priority:  critical  |   Milestone:     
 Version:  0.6       |    Keywords:     
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 The problem seems to be in wcwidth foreign call where the result type was
 Int instead of CInt. This led to Int32/Int64 mismatch which later caused a
 deadlock or something like that.

 I'm attaching a patch.

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Ticket URL: <http://trac.haskell.org/haskeline/ticket/116>
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