CMake: Cleanup targets with transitive dependencies

src/Mod/MeshPart/App/CMakeLists.txt

@@ -1,3 +1,5 @@
+add_library(MeshPart SHARED)
+
 if (SMESH_FOUND)
     add_definitions(-DHAVE_SMESH)
     if(SMESH_VERSION_MAJOR LESS_EQUAL 9 AND SMESH_VERSION_MINOR LESS 10 )
@@ -14,22 +16,22 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/src
 )
 
-include_directories(
+target_include_directories(
+    MeshPart
     SYSTEM
-    ${Boost_INCLUDE_DIRS}
-    ${OCC_INCLUDE_DIR}
-    ${ZLIB_INCLUDE_DIR}
-    ${PYCXX_INCLUDE_DIR}
-    ${Python3_INCLUDE_DIRS}
+    PUBLIC
     ${SMESH_INCLUDE_DIR}
     ${VTK_INCLUDE_DIRS}
-    ${EIGEN3_INCLUDE_DIR}
+)
+
+target_include_directories(
+    MeshPart
+    SYSTEM
+    PRIVATE
     ${pybind11_INCLUDE_DIR}
 )
 
-
-link_directories(${OCC_LIBRARY_DIR})
-link_directories(${SMESH_LIB_PATH})
+target_link_directories(MeshPart PUBLIC ${SMESH_LIB_PATH})
 
 set(MeshPart_LIBS
     Part
@@ -79,7 +81,7 @@ if (MINGW AND CMAKE_COMPILER_IS_CLANGXX)
     endif()
 endif()
 
-add_library(MeshPart SHARED ${MeshPart_SRCS} ${MeshPart_Scripts})
+target_sources(MeshPart PRIVATE ${MeshPart_SRCS} ${MeshPart_Scripts})
 target_link_libraries(MeshPart ${MeshPart_LIBS})
 if (FREECAD_WARN_ERROR)
     target_compile_warn_error(MeshPart)

src/Mod/MeshPart/Gui/CMakeLists.txt

@@ -15,17 +15,6 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
 )
 
-include_directories(
-    SYSTEM
-    ${Boost_INCLUDE_DIRS}
-    ${OCC_INCLUDE_DIR}
-    ${COIN3D_INCLUDE_DIRS}
-    ${ZLIB_INCLUDE_DIR}
-    ${PYCXX_INCLUDE_DIR}
-    ${Python3_INCLUDE_DIRS}
-)
-
-link_directories(${OCC_LIBRARY_DIR})
 link_directories(${SMESH_LIB_PATH})
 
 set(MeshPartGui_LIBS