[GHC] #16223: hWaitForInput is broken on Windows

[GHC]

#16223: hWaitForInput is broken on Windows
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.6.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 As noted in #16160:
 {{{
 Compile failed (exit code 1) errors were:
 [1 of 1] Compiling Main             ( hWaitForInput-accurate-socket.hs,
 hWaitForInput-accurate-socket.o )

 hWaitForInput-accurate-socket.hs:8:1: error:
     Could not find module ‘System.Posix.IO’
     Use -v (or `:set -v` in ghci) to see a list of the files searched for.

 *** unexpected failure for hWaitForInput-accurate-socket(normal)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16223>
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