Fix build on MacOS-X 10.14: missing Xerces include dir

This undoes most of the Xerces related part of the commits listed below.
The issue resolved here is that the Xerces include dir *is* set in the
CMakeLists.txt of src/Base, but it got removed from various App and Gui
dirs in src/Mod. If those now include a header from src/Base, which
itself includes xercesc, the build fails using Apple clang version 11.0.0
(clang-1100.0.33.17) on Mojave, configured using cmake 3.22.1, with
errors like the following:

In file included from .../src/Mod/Part/App/FeaturePartBoolean.cpp:34:
In file included from .../src/App/Application.h:33:
.../src/Base/Parameter.h:54:10: fatal error: 'xercesc/util/XercesDefs.hpp' file not found
 #include <xercesc/util/XercesDefs.hpp>
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

Finally, a full list of the commits that introduced this spurious include
dir optimization for reference:
- Drawing: commit 96ad045b91
- Image: commit dde71a21d5
- Import: commit c9d28b542f
- Inspection: commit d41f55f382
- Mesh: commit 19072b0538
- Part: commit fe213a48f0
- PartDesign: commit b037d8e240
- Path: commit f23fa31f42
- Points: commit bec723ba17
- Raytracing: commit 08d4ac63a3
- ReverseEnginering: commit 5ca787cb0e
- Robot: commit bad4809a1c
- Sketcher: commit 3c96daf105
- Spreadsheet: commit 66e8a2bef3
- Start: commit c9dee5e70a
- Surface: commit 6b04215be6
- TechDraw: commit 5e6699e48d
- Test: commit ea5b45b92c
- Web: commit ee6d631531

src/Mod/Drawing/App/CMakeLists.txt

@@ -10,6 +10,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Drawing/Gui/CMakeLists.txt

@@ -13,6 +13,7 @@ include_directories(
     ${PYTHON_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Image/Gui/CMakeLists.txt

@@ -11,6 +11,7 @@ include_directories(
     ${OPENCV2_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 if(MSVC)

src/Mod/Import/App/CMakeLists.txt

@@ -8,11 +8,12 @@ endif(MSVC)
 include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
-    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Import/Gui/CMakeLists.txt

@@ -12,6 +12,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
 )
 

src/Mod/Inspection/App/CMakeLists.txt

@@ -12,6 +12,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Inspection/Gui/CMakeLists.txt

@@ -4,6 +4,7 @@ include_directories(
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
 )
 

src/Mod/Mesh/App/CMakeLists.txt

@@ -8,6 +8,7 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src/3rdParty/libkdtree
     ${Boost_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}
 )

src/Mod/Mesh/Gui/CMakeLists.txt

@@ -5,6 +5,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}/Inventor/annex
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 if(MSVC)

src/Mod/Part/App/CMakeLists.txt

@@ -17,6 +17,7 @@ include_directories(
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${FREETYPE_INCLUDE_DIRS}
 )

src/Mod/Part/Gui/CMakeLists.txt

@@ -13,6 +13,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/PartDesign/App/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
     ${QT_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${QT_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/PartDesign/Gui/CMakeLists.txt

@@ -13,6 +13,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Path/App/CMakeLists.txt

@@ -18,6 +18,7 @@ include_directories(
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Path/Gui/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Points/App/CMakeLists.txt

@@ -8,6 +8,7 @@ include_directories(
     ${Boost_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${CMAKE_BINARY_DIR}/src/3rdParty/libE57Format
     ${CMAKE_SOURCE_DIR}/src/3rdParty/libE57Format/include

src/Mod/Points/Gui/CMakeLists.txt

@@ -5,6 +5,7 @@ include_directories(
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 set(PointsGui_LIBS

src/Mod/Raytracing/App/CMakeLists.txt

@@ -11,6 +11,7 @@ include_directories(
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Raytracing/Gui/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/ReverseEngineering/App/CMakeLists.txt

@@ -29,6 +29,7 @@ include_directories(
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}
     ${PCL_INCLUDE_DIRS}

src/Mod/ReverseEngineering/Gui/CMakeLists.txt

@@ -13,6 +13,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Robot/App/CMakeLists.txt

@@ -15,6 +15,7 @@ include_directories(
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Robot/Gui/CMakeLists.txt

@@ -16,6 +16,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 link_directories(${OCC_LIBRARY_DIR})
 

src/Mod/Sketcher/App/CMakeLists.txt

@@ -24,6 +24,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Sketcher/Gui/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}
 )
 link_directories(${OCC_LIBRARY_DIR})

src/Mod/Spreadsheet/App/CMakeLists.txt

@@ -8,6 +8,7 @@ include_directories(
     ${PYTHON_INCLUDE_DIRS}
     ${Boost_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 set(Spreadsheet_LIBS

src/Mod/Spreadsheet/Gui/CMakeLists.txt

@@ -5,6 +5,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 generate_from_xml(ViewProviderSpreadsheetPy)

src/Mod/Start/Gui/CMakeLists.txt

@@ -4,6 +4,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 set(StartGui_LIBS

src/Mod/Surface/App/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
   ${OCC_INCLUDE_DIR}
   ${PYTHON_INCLUDE_DIRS}
   ${ZLIB_INCLUDE_DIR}
+  ${XercesC_INCLUDE_DIRS}
   ${FREETYPE_INCLUDE_DIRS}
 )
 

src/Mod/Surface/Gui/CMakeLists.txt

@@ -14,6 +14,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
 )
 

src/Mod/TechDraw/App/CMakeLists.txt

@@ -15,6 +15,7 @@ include_directories(
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
     ${QT_QTCORE_INCLUDE_DIR}
 )
 

src/Mod/TechDraw/Gui/CMakeLists.txt

@@ -23,6 +23,7 @@ include_directories(
     ${PYTHON_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 if(BUILD_QT5)

src/Mod/Test/Gui/CMakeLists.txt

@@ -3,6 +3,7 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${Boost_INCLUDE_DIRS}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 set(TestGui_LIBS

src/Mod/Web/Gui/CMakeLists.txt

@@ -4,6 +4,7 @@ include_directories(
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}
     ${PYTHON_INCLUDE_DIRS}
+    ${XercesC_INCLUDE_DIRS}
 )
 
 if (Qt5WebEngineWidgets_FOUND)