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Fix OpenCASCADE 7.8.0 compilation issues

Dave Moxey requested to merge dmoxey/nektar:fix/opencascade-7.8.0 into master

Issue/feature addressed

This MR fixes an issue with OpenCASCADE 7.8.0 which has renamed libraries for STEP, IGES and STL inputs.

Proposed solution

Fix the CMake to detect the correct packages depending on version.


See above.


OpenCASCADE 7.8.0 is not available on most platforms but this was tested against MacPorts.


  • Changelog is updated.
  • Contributed code is correctly formatted. (See the contributing guidelines).
  • No extraneous files have been added (e.g. compiler output or test data files).
Edited by Dave Moxey

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