Since ac77cd779e ("CMake: PySide cleanup") compatibility variables depends
on PySide6_FOUND, but setting that was later removed, leaving pip installed
PySide6 undetected.
Fixes: 9119d392c9 ("CMake: Fix PySide6 search")
* cMake: Add base support for LibPack3
Minor changes to FreeCAD source code to support compiling with Qt 6.5 on MSVC,
and changes to cMake setup to support the new Libpack.
* NETGENPlugin: Fix compilation with MSVC and OCCT 7.8
* Material: Switch to Wrapped_ParseTupleAndKeywords for /fpermissive- on MSVC
* Base: Prevent accidental definition of MIN and MAX by MSVC
* cMake: Prevent accidentally finding an old LibPack
* Material: Wrap another ParseTuple call
* OCCT: Modify includes for 7.8.x
* Part: Change TNP code to use Wrapped_ParseTupleAndArgs
* Spreadsheet: Workaround for MSVC macro pollution
* Mesh: Workaround for MSVC macro pollution
* Base: Remove extra MSVC flag (moved to CMake)
* Tests: Fix compiling with /permissive-
* FEM: Fix Qt warnings about duplicate element names
* cMake: Ensure major version numbers are set
* Address review comments.
* cMake: Further tweaks for LibPack3
* cMake: Modify specification of compiler flags for MSVC
* Main: Remove QtQuick testing code
* cmake: Find Boost before SMESH (which uses it)
* Fixes for LibPack2
* cMake: Another try at importinhg VTK cleanly
