[MacPorts] #32936: tiff: update to 4.0.0

[MacPorts]

#32936: tiff: update to 4.0.0
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 Reporter:  jmr@…             |       Owner:  waqar@…           
     Type:  update            |      Status:  new               
 Priority:  Normal            |   Milestone:                    
Component:  ports             |     Version:                    
 Keywords:                    |        Port:  tiff              
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Comment(by macosx12345@…):

 Libtiff version 4.0.1 was released a few days ago. It introduces versioned
 symbols but they are not enabled by default. I updated my Portfile
 proposal to version 4.0.1 but I did not enable versioned symbols since it
 seems useless under Mac OS X (the linker doesn't have this feature).
 Please correct if anything is wrong.

  The portfile (and patches) were tested under Mac OS 10.6 with MacPorts
 2.0.3.

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Ticket URL: <https://trac.macports.org/ticket/32936#comment:3>
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