-Wno-return-type-c-linkage surpreses "extern C warning" spam reguarding nonstandard classes used in conjunction with the script trampoline macros.

Tools/CMake/torque3d.cmake

@@ -29,8 +29,8 @@ if(UNIX)
     #set(CXX_FLAG32 "-m32") #uncomment for build x32 on OSx64
 
     if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAG32} -Wundef -msse -pipe -Wfatal-errors ${TORQUE_ADDITIONAL_LINKER_FLAGS}")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CXX_FLAG32} -Wundef -msse -pipe -Wfatal-errors ${TORQUE_ADDITIONAL_LINKER_FLAGS}")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAG32} -Wundef -msse -pipe -Wfatal-errors -Wno-return-type-c-linkage ${TORQUE_ADDITIONAL_LINKER_FLAGS}")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CXX_FLAG32} -Wundef -msse -pipe -Wfatal-errors -Wno-return-type-c-linkage ${TORQUE_ADDITIONAL_LINKER_FLAGS}")
     else()
     # default compiler flags
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAG32} -Wundef -msse -pipe -Wfatal-errors ${TORQUE_ADDITIONAL_LINKER_FLAGS} -Wl,-rpath,'$$ORIGIN'")