#if SECURITY_DEP
-#if MONOTOUCH || MONODROID
-using MX = Mono.Security.X509;
-#else
+#if MONO_SECURITY_ALIAS
extern alias MonoSecurity;
using MX = MonoSecurity::Mono.Security.X509;
+#else
+using MX = Mono.Security.X509;
#endif
using System.Security.Permissions;