#11084: Singular 3-1-1-4.p4 fails to build with gcc 4.6.0.
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   Reporter:  drkirkby                                                          
        |       Owner:  GeorgSWeber                                 
       Type:  defect                                                            
        |      Status:  positive_review                             
   Priority:  critical                                                          
        |   Milestone:  sage-4.7                                    
  Component:  build                                                             
        |    Keywords:                                              
     Author:  David Kirkby                                                      
        |    Upstream:  None of the above - read trac for reasoning.
   Reviewer:  AlexanderDreyer                                                   
        |      Merged:                                              
Work_issues:  Testing on  Linux, OS X, Solaris 10 (both x86 and SPARC) with gcc 
4.6.0.  |  
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Comment(by vbraun):

 I dug around for the missing symbol a bit and the issue is in const
 propagation where some function should get compiled into a const and a
 non-const version, but apparently one of them is missing when linking
 everything. I'm not sure if its a compiler bug or a misuse of const-ness
 that causes it.

 With lower optimization gcc probably doesn't emit two distinct versions of
 the function. So the bug should only affect whether the code compiles or
 not, but never give wrong results.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11084#comment:24>
Sage <http://www.sagemath.org>
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