[MacPorts] #61913: vtk-8.2.0_3+python38+qt5 build failure

[MacPorts]

#61913: vtk-8.2.0_3+python38+qt5 build failure
---------------------------+--------------------
 Reporter:  murrayE        |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.6.4
 Keywords:  build failure  |       Port:  vtk
---------------------------+--------------------
 Under macOS Catalina 10.15.7 and with Xcode CLT version 12.3.0,
 vtk-8.2.0_3+python38+qt5 build fails. The possibly relevant section of the
 log is:

 {{{
 :info:build make[2]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_vtk/vtk/work/build'
 :info:build [ 38%] Built target vtkCommonCorePythonD
 :info:build make[1]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_vtk/vtk/work/build'
 :info:build make: *** [all] Error 2
 :info:build make: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_vtk/vtk/work/build'
 :info:build Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_vtk/vtk/work/build"
 && /usr/bin/make -j16 -w all VERBOSE=ON
 :info:build Exit code: 2
 :error:build Failed to build vtk: command execution failed
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61913>
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