--- a/lib/iec_std_lib.h	Tue Jan 29 09:32:02 2008 +0100
+++ b/lib/iec_std_lib.h	Fri Feb 08 14:38:20 2008 +0100
@@ -1,5 +1,21 @@
+/*
+ * (c) 2008 Edouard TISSERANT
+ *
+ * Offered to the public under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
+ * General Public License for more details.
+ *
+ * This code is made available on the understanding that it will not be
+ * used in safety-critical situations without a full and competent review.
+ */
+
 /****
- * IEC 61131-3 standard function lib
+ * IEC 61131-3 standard function library
  */
 
 #include <limits.h>