Disable a codepage warning on non-English OS (#4668)

CMakeLists.txt

@@ -116,7 +116,7 @@ if(${COMPILER_IS_LIKE_GNU})
     set(SPIRV_WARNINGS ${SPIRV_WARNINGS} -Werror)
   endif()
 elseif(MSVC)
-  set(SPIRV_WARNINGS -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS /wd4800)
+  set(SPIRV_WARNINGS -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS /wd4800 /wd4819)
 
   if(${SPIRV_WERROR})
     set(SPIRV_WARNINGS ${SPIRV_WARNINGS} /WX)