[MacPorts] #28032: rrdtool 1.4.4_1 fails to compile with libpng 1.4

[MacPorts]

#28032: rrdtool 1.4.4_1 fails to compile with libpng 1.4
----------------------------+-----------------------------------------------
  Reporter:  sck@…          |       Owner:  markd@…           
      Type:  defect         |      Status:  closed            
  Priority:  Normal         |   Milestone:                    
 Component:  ports          |     Version:  1.9.2             
Resolution:  fixed          |    Keywords:                    
      Port:  rrdtool        |  
----------------------------+-----------------------------------------------

Comment(by jmr@…):

 BTW, you really don't want to use -R in that command. It upgrades each
 port's dependents (i.e. ports that depend on it), but does not upgrade the
 dependents' dependencies first (because that would take forever, and also
 rebuild way too much if --force is also being used).

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Ticket URL: <https://trac.macports.org/ticket/28032#comment:12>
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