disable GCC's insolent warning about *intentional* overloaded function overriding;

CMakeLists.txt

@@ -126,20 +126,20 @@ if(NOT CMAKE_BUILD_TYPE)
 endif(NOT CMAKE_BUILD_TYPE)
 message(CHECK_START "Build Type is ${CMAKE_BUILD_TYPE}")
 if (CMAKE_BUILD_TYPE MATCHES Debug)
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -Wall -std=c++14")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -Wall -std=c++14")
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O0 -Wall -std=c++14")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O0 -Wall -std=c++14")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O0 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O0 -Wall -Wno-overloaded-virtual -std=c++14")
 elseif(CMAKE_BUILD_TYPE MATCHES Release)
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O3 -Wall -std=c++14 -s")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O3 -Wall -std=c++14 -s")
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O3 -Wall -std=c++14 -s")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O3 -Wall -std=c++14 -s")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14 -s")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14 -s")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14 -s")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14 -s")
 else()
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O3 -Wall -std=c++14")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O3 -Wall -std=c++14")
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O3 -Wall -std=c++14")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O3 -Wall -std=c++14")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g -O3 -Wall -Wno-overloaded-virtual -std=c++14")
 endif()
 if (CROSS_COMPILE_ARM)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-psabi")