There is a new pull request by karl-nilsson against master on the void-packages repository

https://github.com/karl-nilsson/void-packages occt_7.6
https://github.com/void-linux/void-packages/pull/36356

[WIP] occt: update to 7.6.1


#### Testing the changes
- I tested the changes in this PR: **briefly**


#### Local build testing
- I built this PR locally for my native architecture, x64-glibc


Like previously, broken ABI
```console
During initialization the error "/usr/lib/freecad/lib64/Part.so: undefined symbol: _ZN24BRepBuilderAPI_MakeShape5BuildEv" occurred in /home/nilsson/.FreeCAD/Mod/A2plus/InitGui.py                                                                                                                        
Please look into the log file for further information                                                                                                
Wizard shaft module cannot be loaded                                                                                                                 
/usr/lib/freecad/lib64/Part.so: undefined symbol: _ZN24BRepBuilderAPI_MakeShape5BuildEv                                                              
connect failed: No such file or directory      
```

Looks like we'll have to update or patch freecad
```console
In file included from /usr/include/opencascade/Extrema_POnSurf.lxx:15,
                 from /usr/include/opencascade/Extrema_POnSurf.hxx:75,
                 from /usr/include/opencascade/Extrema_ExtPElS.hxx:27,
                 from /usr/include/opencascade/Extrema_ExtPS.hxx:24,
                 from /usr/include/opencascade/ShapeAnalysis_Surface.hxx:20,
                 from ../src/3rdParty/salomesmesh/inc/SMESH_MesherHelper.hxx:37,
                 from ../src/3rdParty/salomesmesh/src/SMESH/SMESH_Mesh.cpp:34:
/usr/include/opencascade/Precision.hxx:98:7: note: previous definition of 'class Precision'
   98 | class Precision
      |       ^~~~~~~~~

```

ping @Piraty 

A patch file from https://github.com/void-linux/void-packages/pull/36356.patch is attached