Build: suppress warnings from 3rd party libraries

Warnings from 3rd parties are not relevant and are only polluting the warning output. Marking these libraries as SYSTEM suppresses warning.

https://gcc.gnu.org/onlinedocs/cpp/Invocation.html#index-I
https://gcc.gnu.org/onlinedocs/cpp/System-Headers.html

src/Mod/Assembly/App/CMakeLists.txt

@@ -4,6 +4,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}

src/Mod/Assembly/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/CAM/App/CMakeLists.txt

@@ -7,6 +7,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}

src/Mod/CAM/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}

src/Mod/CAM/PathSimulator/App/CMakeLists.txt

@@ -4,6 +4,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/CAM/PathSimulator/AppGL/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}

src/Mod/CAM/libarea/CMakeLists.txt

@@ -9,9 +9,13 @@ if(MSVC)
 endif(MSVC)
 
 include_directories(
+    SYSTEM
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
+)
+
+include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_SOURCE_DIR}/src/Mod/Import/App/dxf
 )
@@ -39,7 +43,7 @@ if(NOT FREECAD_USE_PYBIND11)
         endif()
 
         if(Boost_FOUND)
-            include_directories(${Boost_INCLUDE_DIRS})
+            include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
             MESSAGE(STATUS "found Boost: " ${Boost_LIB_VERSION})
             MESSAGE(STATUS "boost-incude dirs are: " ${Boost_INCLUDE_DIRS})
             MESSAGE(STATUS "boost-python lib is: " ${Boost_PYTHON_LIBRARY})
@@ -47,10 +51,10 @@ if(NOT FREECAD_USE_PYBIND11)
             MESSAGE(STATUS "Boost_LIBRARIES is: " ${Boost_LIBRARIES})
         endif()
     else()
-        include_directories(${Boost_INCLUDE_DIRS})
+        include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
     endif()
 else()
-    include_directories(${pybind11_INCLUDE_DIR})
+    include_directories(SYSTEM ${pybind11_INCLUDE_DIR})
 endif(NOT FREECAD_USE_PYBIND11)
 
 

src/Mod/Cloud/App/CMakeLists.txt

@@ -3,6 +3,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OPENSSL_CFLAGS}")
 endif()
 
 include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Cloud/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@
 include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Draft/App/CMakeLists.txt

@@ -8,6 +8,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Drawing/App/CMakeLists.txt

@@ -1,5 +1,9 @@
 include_directories(
     ${CMAKE_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Drawing/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Fem/App/CMakeLists.txt

@@ -20,6 +20,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Fem/Gui/CMakeLists.txt

@@ -17,6 +17,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Import/App/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Import/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}

src/Mod/Inspection/App/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Inspection/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}

src/Mod/JtReader/App/CMakeLists.txt

@@ -4,6 +4,10 @@ set(JTREADER_TKJT_LIBRARIES CACHE FILEPATH  "File path to TKJT library")
 include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
@@ -33,7 +37,7 @@ SET(JtReader_SRCS
 
 if (EXISTS "${JTREADER_TKJT_INCLUDE_DIRS}/JtData_Object.hxx")
     add_definitions(-DJTREADER_HAVE_TKJT)
-    include_directories(${JTREADER_TKJT_INCLUDE_DIRS})
+    include_directories(SYSTEM ${JTREADER_TKJT_INCLUDE_DIRS})
     list (APPEND JtReader_LIBS
         ${JTREADER_TKJT_LIBRARIES}
     )

src/Mod/Material/App/CMakeLists.txt

@@ -12,6 +12,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}
@@ -28,6 +32,7 @@ set(Materials_LIBS
 )
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
 )
 list(APPEND Materials_LIBS

src/Mod/Material/Gui/CMakeLists.txt

@@ -9,6 +9,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
@@ -26,6 +30,7 @@ set(MatGui_LIBS
 )
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
 )
 list(APPEND MatGui_LIBS

src/Mod/Measure/App/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Measure/Gui/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}

src/Mod/Mesh/App/CMakeLists.txt

@@ -6,6 +6,10 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_SOURCE_DIR}/src/3rdParty/libkdtree
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}
@@ -22,6 +26,7 @@ set(Mesh_LIBS
 )
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
 )
 list(APPEND Mesh_LIBS

src/Mod/Mesh/Gui/CMakeLists.txt

@@ -1,5 +1,9 @@
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}/Inventor/annex

src/Mod/MeshPart/App/CMakeLists.txt

@@ -12,6 +12,10 @@ endif(BUILD_FEM_NETGEN)
 include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZLIB_INCLUDE_DIR}
@@ -135,7 +139,7 @@ if (BUILD_FLAT_MESH)
             endif()
 
             if(Boost_FOUND)
-                include_directories(${Boost_INCLUDE_DIRS})
+                include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
                 SET(FLATMESH_SRCS
                     MeshFlattening.cpp
                     MeshFlattening.h

src/Mod/MeshPart/Gui/CMakeLists.txt

@@ -13,6 +13,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}

src/Mod/Part/App/CMakeLists.txt

@@ -7,6 +7,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Part/Gui/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
@@ -27,6 +31,7 @@ if(MSVC)
 endif(MSVC)
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
 )
 list(APPEND PartGui_LIBS

src/Mod/PartDesign/App/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${QT_INCLUDE_DIR}

src/Mod/PartDesign/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}

src/Mod/Points/App/CMakeLists.txt

@@ -5,6 +5,10 @@ endif(WIN32)
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}
@@ -21,6 +25,7 @@ set(Points_LIBS
 )
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
 )
 list(APPEND Points_LIBS

src/Mod/Points/Gui/CMakeLists.txt

@@ -1,5 +1,9 @@
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${EIGEN3_INCLUDE_DIR}

src/Mod/ReverseEngineering/App/CMakeLists.txt

@@ -20,6 +20,10 @@ endif ()
 
 include_directories(
     ${CMAKE_SOURCE_DIR}/src
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}

src/Mod/ReverseEngineering/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}

src/Mod/Robot/App/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${EIGEN3_INCLUDE_DIR}

src/Mod/Robot/Gui/CMakeLists.txt

@@ -2,6 +2,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIR}

src/Mod/Sandbox/App/CMakeLists.txt

@@ -5,6 +5,10 @@ endif(WIN32)
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}
@@ -14,10 +18,12 @@ include_directories(
 
 if (BUILD_QT5)
     include_directories(
+        SYSTEM
         ${Qt5Core_INCLUDE_DIRS}
     )
 else()
     include_directories(
+        SYSTEM
         ${QT_INCLUDE_DIR}
     )
 endif()

src/Mod/Sandbox/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src/Gui
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
@@ -13,10 +17,13 @@ include_directories(
 
 if(BUILD_QT5)
     include_directories(
+        SYSTEM
         ${Qt5Core_INCLUDE_DIRS}
     )
 else()
+    SYSTEM
     include_directories(
+        SYSTEM
         ${QT_INCLUDE_DIR}
     )
 endif()

src/Mod/Sketcher/App/CMakeLists.txt

@@ -14,6 +14,10 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/..
     ${CMAKE_CURRENT_BINARY_DIR}/..
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZIPIOS_INCLUDES}

src/Mod/Sketcher/Gui/CMakeLists.txt

@@ -3,6 +3,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${COIN3D_INCLUDE_DIRS}

src/Mod/Spreadsheet/App/CMakeLists.txt

@@ -5,6 +5,10 @@ endif(WIN32)
 include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}
     ${Boost_INCLUDE_DIRS}

src/Mod/Spreadsheet/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${ZIPIOS_INCLUDES}

src/Mod/Start/App/CMakeLists.txt

@@ -22,6 +22,7 @@
 #  ***************************************************************************/
 
 include_directories(
+        SYSTEM
         ${PYCXX_INCLUDE_DIR}
         ${Python3_INCLUDE_DIRS}
         ${QtCore_INCLUDE_DIRS}

src/Mod/Start/Gui/CMakeLists.txt

@@ -23,6 +23,10 @@
 
 include_directories(
         ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+        SYSTEM
         ${Boost_INCLUDE_DIRS}
         ${COIN3D_INCLUDE_DIRS}
         ${PYCXX_INCLUDE_DIR}

src/Mod/Surface/App/CMakeLists.txt

@@ -4,6 +4,10 @@ include_directories(
   ${CMAKE_SOURCE_DIR}/src
   ${CMAKE_CURRENT_BINARY_DIR}
   ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+  SYSTEM
   ${Boost_INCLUDE_DIRS}
   ${OCC_INCLUDE_DIR}
   ${PYCXX_INCLUDE_DIR}

src/Mod/Surface/Gui/CMakeLists.txt

@@ -4,6 +4,10 @@ include_directories(
     ${CMAKE_BINARY_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}

src/Mod/TechDraw/App/CMakeLists.txt

@@ -5,6 +5,10 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${ZIPIOS_INCLUDES}
@@ -26,6 +30,7 @@ if (BUILD_IMPORT)
 endif ()
 
 include_directories(
+    SYSTEM
     ${QtConcurrent_INCLUDE_DIRS}
     ${QtCore_INCLUDE_DIR}
     ${QtGui_INCLUDE_DIR}

src/Mod/TechDraw/Gui/CMakeLists.txt

@@ -16,6 +16,10 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${COIN3D_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}

src/Mod/Test/Gui/CMakeLists.txt

@@ -1,6 +1,10 @@
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_SOURCE_DIR}/src
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${PYCXX_INCLUDE_DIR}
     ${Python3_INCLUDE_DIRS}

src/Mod/Web/App/CMakeLists.txt

@@ -1,6 +1,10 @@
 
 include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+include_directories(
+    SYSTEM
     ${Boost_INCLUDE_DIRS}
     ${OCC_INCLUDE_DIR}
     ${PYCXX_INCLUDE_DIR}
@@ -9,6 +13,7 @@ include_directories(
 )
 
 include_directories(
+    SYSTEM
     ${QtNetwork_INCLUDE_DIRS}
 )
 set(Web_LIBS