--- a/docs/ccguide/errors.appendix	Thu Oct 03 21:38:01 2002 +0000
+++ b/docs/ccguide/errors.appendix	Thu Oct 03 21:39:06 2002 +0000
@@ -5,5 +5,24 @@
 decimal (second column). Error codes other than those listed are
 generated by programming languages or user programs.
 </para>
+<variablelist>
+<varlistentry><term>already a local variable</term>
+<listitem>
+<para>
+Variable has already been declared at the current block level.
+(8.1, 9.2)
+</para>
+</listitem>
+</varlistentry>
 
+<varlistentry><term>argument : &lt;text&gt;</term>
+<listitem>
+<para>
+Error from preprocessor. Self-explanatory. Most common cause
+of this error is not being able to find an include file.
+</para>
+</listitem>
+</varlistentry>
+
+</variablelist>
 </appendix>