[GHC] #1640: Bang patterns cause compilation error

[GHC]

#1640: Bang patterns cause compilation error
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  Reporter:  iampure at gmail.com  |          Owner:         
      Type:  bug                |         Status:  new    
  Priority:  normal             |      Milestone:         
 Component:  Compiler           |        Version:  6.7    
  Severity:  blocker            |       Keywords:         
Difficulty:  Unknown            |             Os:  Unknown
  Testcase:                     |   Architecture:  Unknown
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I get with {-# OPTIONS -fbang-patterns #-} during compilation: in function
 `s1SZy_info'(.text+0x8fff): undefined reference to <something with a name
 derived from my code>_closure'

 Without {-# OPTIONS -fbang-patterns #-} it does compile without error.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1640>
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