// Don't use Assembly manifest, but grovel on disk for a file.
try
{
-#if !DISABLE_CAS_USE
+#if FEATURE_MONO_CAS
new System.Security.Permissions.FileIOPermission(System.Security.Permissions.PermissionState.Unrestricted).Assert();
#endif
}
finally
{
-#if !DISABLE_CAS_USE
+#if FEATURE_MONO_CAS
System.Security.CodeAccessPermission.RevertAssert();
#endif
}