[MacPorts] #28197: vrpn: update to 7.28

[MacPorts]

#28197: vrpn: update to 7.28
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 Reporter:  ryandesign@…             |       Owner:  sean@…         
     Type:  update                   |      Status:  new            
 Priority:  Normal                   |   Milestone:                 
Component:  ports                    |     Version:                 
 Keywords:                           |        Port:  vrpn           
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Comment(by ryandesign@…):

 Attached is a revised patch which also:

  * builds on Mac OS X using HW_OS=powerpc_macosx
  * ensures we're UsingTheRightCompiler and build_arch
  * disables the universal variant since that fails to build
  * installs to the correct prefix and destroot

 The swig, python, and libusb issues remain to be solved.

 I'm also confused that vrpn 7.28.2 installs nothing into ${prefix}/bin;
 07_26 installed 37 programs there. Where did they all go?

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Ticket URL: <https://trac.macports.org/ticket/28197#comment:3>
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