[MacPorts] #70089: vtk @8.2.0 fails to compile: ld: duplicate symbol _exodus_unused_symbol_dummy_1

[MacPorts]

#70089: vtk @8.2.0 fails to compile: ld: duplicate symbol
_exodus_unused_symbol_dummy_1
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.9.3
Resolution:                |   Keywords:
      Port:  vtk           |
---------------------------+--------------------

Comment (by barracuda156):

 Support for 10.6 for Cocoa was dropped in
 https://github.com/Kitware/VTK/commit/f2e249c0a6a93f12808822cc5e5dddda35a09a35

 And yes, it is broken now pretty badly. Also, restoring the older code may
 not suffice for PowerPC systems, since our 10.6 SDK is not exactly the
 same with x86, so I will not bother with it. Instead, rather switch it to
 X11, conditionally on the OS version. Since the Cocoa requires 10.7+, I
 can conveniently ignore ppc and use X11 on everything <10.7.

 Soon will see if that works. Another option is SDL2. If neither works,
 then it is unfixable.

-- 
Ticket URL: <https://trac.macports.org/ticket/70089#comment:7>
MacPorts <https://www.macports.org/>
Ports system for macOS