[MacPorts] #28167: sudo port upgrade -u emacs, fails

[MacPorts]

#28167: sudo port upgrade -u emacs, fails
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 Reporter:  lorn@…            |       Owner:  dports@…           
     Type:  defect            |      Status:  assigned           
 Priority:  Normal            |   Milestone:                     
Component:  ports             |     Version:  1.9.2              
 Keywords:                    |        Port:  emacs              
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Comment(by dports@…):

 I've heard of this happening with Xcode 4, whereas it seems to work fine
 with Xcode 3. I don't know what exactly the problem is, but something in
 emacs's unexec code doesn't seem to play well with the Xcode 4 compiler.

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Ticket URL: <https://trac.macports.org/ticket/28167#comment:5>
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