[GHC] #1355: Interactive I/O with ghc doesn't prompt until after reading

[GHC]

#1355: Interactive I/O with ghc doesn't prompt until after reading
--------------------------------+-------------------------------------------
  Reporter:  ok at cs.otago.ac.nz  |          Owner:                               
      Type:  bug                |         Status:  new                          
  Priority:  normal             |      Milestone:                               
 Component:  Prelude            |        Version:  6.2                          
  Severity:  normal             |       Keywords:  interactive stdio late prompt
Difficulty:  Unknown            |             Os:  Multiple                     
  Testcase:                     |   Architecture:  Multiple                     
--------------------------------+-------------------------------------------
My students complained that the interactive program they were to write
 using
 Haskell would not issue its first prompt until after the first line of
 input
 had been entered.  I enclose a tiny Haskell program that exhibits this
 behaviour in 6.2 (SPARC Solaris) and 6.4 (Intel Linux) and am told that it
 also happens in 6.6.  I also show that it works fine in Hugs, HBC, and
 NCH98.  (Mangled when I tried pasting it in.  Stupid web forms.)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1355>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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