A real solution could be to compile IfcGeom into a dynamic library and compile multiple versions of _IfcImport.so for different configurations which are selected based on sys.maxunicode
Another alternative would be not to rely on strings when exchanging textual data but vectors of int that contain the string character codes
- Disallow open curves for IfcPolygonalBoundedHalfSpace [fixes#3405490 Incorrectly rendered wall in FZK-Haus-EliteCAD.ifc]
- Disable tolerance on IfcCompositeCurve
- Try to convert IfcConnectedFaceSets to TopoDS_Solids regardless of whether they are open or closed shells, improves openings in IFC files exported by Revit
- Provide debugging information based on shape volume on IfcBooleanClippingResult and IfcOpeningElement
Thomas Krijnen