suppressing CMP0020 and CMP0043 warnings

CMakeLists.txt

@@ -53,6 +53,13 @@ ELSE ()
 	ADD_DEFINITIONS("-Wno-unknown-pragmas")
 ENDIF()
 
+if(POLICY CMP0020)
+	cmake_policy(SET CMP0020 OLD)
+endif()
+if(POLICY CMP0043)
+	cmake_policy(SET CMP0043 OLD)
+endif()
+
 IF(MINGW)
     # Hide the --enable-auto-import warning
 	SET(CMAKE_EXE_LINKER_FLAGS "-Wl,--enable-auto-import")  

examples/BOWMapping/CMakeLists.txt

@@ -23,6 +23,10 @@ else()
 	FIND_PACKAGE(PCL 1.7 REQUIRED)
 endif()
 
+if(POLICY CMP0020)
+	cmake_policy(SET CMP0020 OLD)
+endif()
+
 SET(INCLUDE_DIRS
 	${RTABMap_INCLUDE_DIRS}
     ${OpenCV_INCLUDE_DIRS}

examples/NoEventsExample/CMakeLists.txt

@@ -31,6 +31,10 @@ else()
     	ENDIF(NOT Qt5_FOUND)
 endif()
 
+if(POLICY CMP0020)
+	cmake_policy(SET CMP0020 OLD)
+endif()
+
 SET(INCLUDE_DIRS
 	${RTABMap_INCLUDE_DIRS}
     ${OpenCV_INCLUDE_DIRS}

examples/RGBDMapping/CMakeLists.txt

@@ -31,6 +31,10 @@ else()
     	ENDIF(NOT Qt5_FOUND)
 endif()
 
+if(POLICY CMP0020)
+	cmake_policy(SET CMP0020 OLD)
+endif()
+
 SET(INCLUDE_DIRS
 	${RTABMap_INCLUDE_DIRS}
     ${OpenCV_INCLUDE_DIRS}

examples/WifiMapping/CMakeLists.txt

@@ -31,6 +31,10 @@ else()
     	ENDIF(NOT Qt5_FOUND)
 endif()
 
+if(POLICY CMP0020)
+	cmake_policy(SET CMP0020 OLD)
+endif()
+
 SET(INCLUDE_DIRS
 	${RTABMap_INCLUDE_DIRS}
     ${OpenCV_INCLUDE_DIRS}