[MacPorts] #27094: libplist: build failure when /Library/Frameworks/Python.framework is present

[MacPorts]

#27094: libplist: build failure when /Library/Frameworks/Python.framework is
present
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  Reporter:  wanthalf@…           |       Owner:  rmstonecipher@…           
      Type:  defect               |      Status:  reopened                  
  Priority:  Normal               |   Milestone:                            
 Component:  ports                |     Version:  1.9.1                     
Resolution:                       |    Keywords:                            
      Port:  libplist             |  
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Comment(by wanthalf@…):

 Yes. It is a general problem. See e.g. bug #25507

 I guess the UnixImageIO.framework (which is responsible for most problems)
 is distributed as support package for the non-macports ("native")
 distribution of GRASS GIS. The Python-2.7 was probably installed of the
 same reason, though it is probably not necessary, as the other
 implementations (apple / macports) are probably sufficient for Grass...?
 (not sure now) Is there really no easy way to generally protect MacPorts
 from packages installed outside its scope? It seems the problem are only
 the header files - right?

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Ticket URL: <https://trac.macports.org/ticket/27094#comment:9>
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