the problem seems lots variables not declared like:
/opt/OpenCASCADE/inc/MeshDS_Mesh2d.gxx:16: error: ‘NodeNumber’ was not
declared in this scope
/opt/OpenCASCADE/inc/MeshDS_Mesh2d.gxx:19: error: ‘theAlloc’ was not
declared in this scope
/opt/OpenCASCADE/inc/MeshDS_Mesh2d.gxx:22: error: ‘myAllocator’ was not
declared in this scope
that are some of not declared stuffs.. a full list is available on like posted... where are now declared? so i should be able to patch freecad. thanks