--- a/main.cc	Mon Aug 11 08:07:12 2014 +0100
+++ b/main.cc	Sat Sep 27 20:09:19 2014 +0100
@@ -123,7 +123,8 @@
   printf(" -s : allow use of safe datatypes (SAFEBOOL, etc.)   (defined in PLCOpen Safety)\n");
   printf(" -n : allow use of nested comments                   (an IEC 61131-3 v3 feature)\n");
   printf(" -r : allow use of references (REF_TO, REF, NULL)    (an IEC 61131-3 v3 feature)\n");
-  printf(" -R : allow use of REF_TO ANY datatypes (implies -r) (a non-standard extension!)\n");
+  printf(" -R : allow use of REF_TO ANY datatypes              (a non-standard extension!)\n");
+  printf("        as well as REF_TO in ARRAYs and STRUCTs      (a non-standard extension!)\n");
   printf(" -c : create conversion functions for enumerated data types\n");
   printf(" -O : options for output (code generation) stage. Available options for %s are...\n", cmd);
   stage4_print_options();