b1782ee3d6
Building the C++ unit tests failed for tests/src/App/Metadata.cpp tests/src/Base/Reader.cpp because some XML headers were not found. This was because the XercesC include dir was not in the search list for headers. I cannot say why only macOS seems to be affected, but it's not the first time, see e.g https://github.com/FreeCAD/FreeCAD/commit/a1776d3e744075e54cf95c68a9264fa0d937cc2d