[MacPorts] #17582: ffmpeg fails to build

[MacPorts]

#17582: ffmpeg fails to build
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  Reporter:  jwhowse4@…            |       Owner:  acho@…           
      Type:  defect                |      Status:  closed           
  Priority:  Normal                |   Milestone:  Port Bugs        
 Component:  ports                 |     Version:  1.6.0            
Resolution:  invalid               |    Keywords:                   
      Port:  ffmpeg                |  
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Comment(by devans@…):

 Committed changes to pre-fetch and fetch in r45991 that make a rudimentary
 check to see if a previous fetch completed successfully and if not force a
 new one.

 See #18067 for further discussion.

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Ticket URL: <http://trac.macports.org/ticket/17582#comment:4>
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