[MacPorts] #30284: bind9: 'IPV6_PKTINFO' undeclared (first use in this function)

[MacPorts]

#30284: bind9: 'IPV6_PKTINFO' undeclared (first use in this function)
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 Reporter:  admin@…          |       Owner:  dluke@…           
     Type:  defect           |      Status:  assigned          
 Priority:  Normal           |   Milestone:                    
Component:  ports            |     Version:  2.0.99            
 Keywords:  lion             |        Port:  bind9             
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Comment(by cirrusj@…):

 The above portfile and patch file (placed in files), allow bind9 to build
 correctly.

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Ticket URL: <https://trac.macports.org/ticket/30284#comment:11>
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