[MacPorts] #28087: bump vigra to 1.7.1

[MacPorts]

#28087: bump vigra to 1.7.1
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 Reporter:  michaelld@…             |       Owner:  benjamin.seppke@…        
     Type:  defect                  |      Status:  new                      
 Priority:  Normal                  |   Milestone:                           
Component:  ports                   |     Version:  1.9.2                    
 Keywords:                          |        Port:  vigra                    
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Comment(by benjamin.seppke@…):

 Okay, just to summarize, what I found out (about the python-bindings)

 1. Newest CMake needed: You need the newest CMake, in older versions, just
 the python26 lib will be found, with the newest version CMake is able to
 find 27 libs.

 2. Boost::Python: The boost::python libs have to be installed by the user
 before the installation of vigranumpy. As the Boost::Python is just a
 variant of boost, we cannot add a dependency to this one.

 3. Installation of vigranumpy's .so files I: By default, the installed
 vigranumpy-libs have a wrong install-name-id (at least on my maschine) of
 "/opt/local/lib" NAME...

 4. Installation of vigranumpy's .so files II: The vigranumpy python
 extensions are all linked to vigranumpycore.so. However, these internal
 links are of the wrong prefix "/opt/local/lib" (for the default case).

 I hope, that my proposed Portfile fixes the issues 3-4, I tested it at
 10.6 with +python27 variant... So, if it also works for you, I think we
 should bring the new Portfile online. As you mentioned earlier, the new
 vigra has to offer a lot more, and the python bindings are a great thing,
 more than nice to have (if you'd asked me).

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Ticket URL: <https://trac.macports.org/ticket/28087#comment:5>
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