Do not use -Wsuggest-override option if KICAD_SCRIPTING is enabled be…

…cause it creates too many useless warnings when compiling pcbnewPYTHON_wrap.cxx

CMakeLists.txt

@@ -180,7 +180,9 @@ if( CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
 
     CHECK_CXX_COMPILER_FLAG("-Wsuggest-override" COMPILER_SUPPORTS_WSUGGEST_OVERRIDE)
 
-    if(COMPILER_SUPPORTS_WSUGGEST_OVERRIDE)
+    # Swig generated files do not use override specifier and create a lot of warnings
+    # So do not use -Wsuggest-override with KICAD_SCRIPTING ON, untill a best way is found
+    if(COMPILER_SUPPORTS_WSUGGEST_OVERRIDE AND NOT KICAD_SCRIPTING)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsuggest-override")
     endif()
 endif()