Update CMakeLists.txt

Author: mcbarton

CMakeLists.txt

@@ -358,7 +358,7 @@ endif()
 # Add appropriate flags for GCC
 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
   if (APPLE OR EMSCRIPTEN)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings -Wno-character-conversion")
   else()
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-common -Woverloaded-virtual -Wcast-qual -fno-strict-aliasing -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings")
   endif ()