diff --git a/Documentation/NuttxUserGuide.html b/Documentation/NuttxUserGuide.html
index 43a9667c726..25a36776507 100644
--- a/Documentation/NuttxUserGuide.html
+++ b/Documentation/NuttxUserGuide.html
@@ -13,7 +13,7 @@
       <h1><big><font color="#3c34ec"><i>NuttX Operating System<p>User's Manual</i></font></big></h1>
       <p><small>by</small></p>
       <p>Gregory Nutt<p>
-      <p>Last Updated: December 11, 2016</p>
+      <p>Last Updated: February 16, 2017</p>
     </td>
   </tr>
 </table>
@@ -8782,7 +8782,17 @@ void  *memcpy(void *dest, const void *src, size_t n);
 int    memcmp(const void *s1, const void *s2, size_t n);
 void  *memmove(void *dest, const void *src, size_t count);
 
-# define bzero(s,n) (void)memset(s,0,n)
+#include &lt;strings.h&gt;
+
+#define bcmp(b1,b2,len)  memcmp(b1,b2,(size_t)len)
+#define bcopy(b1,b2,len) (void)memmove(b2,b1,len)
+#define bzero(s,n)       (void)memset(s,0,n)
+#define index(s,c)       strchr(s,c)
+#define rindex(s,c)      strrchr(s,c)
+
+int    ffs(int j);
+int    strcasecmp(const char *, const char *);
+int    strncasecmp(const char *, const char *, size_t);
 </pre></ul>
 
 <h3><a name="PipesNFifos">2.10.9 Pipes and FIFOs</a></h3>