[MacPorts] #21184: graphviz @2.24.0 Unable to build

[MacPorts]

#21184: graphviz @2.24.0 Unable to build
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 Reporter:  nicolas.forquet@…          |       Owner:  ryandesign@…           
     Type:  defect                     |      Status:  new                    
 Priority:  Normal                     |   Milestone:                         
Component:  ports                      |     Version:  1.8.0                  
 Keywords:                             |        Port:  graphviz               
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Comment(by nicolas.forquet@…):

 I added the file... I dont have /usr/include/Availability.h on my machine
 (only AvailabilityMacros.h)

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Ticket URL: <http://trac.macports.org/ticket/21184#comment:4>
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