Avoid a few warnings about unused auto-generated lexer functions.

@@ -55,6 +55,8 @@ int addrinput(char *buf, int max_size)
     extern char *addrptr;	/* current position in address string */
     int n;			/* number of characters to read from string */
 
+    (void) addrunput;
+
     n = strlen(addrptr) < max_size ? strlen(addrptr) : max_size;
     if (n > 0) {
 	memcpy(buf, addrptr, n);

@@ -133,6 +133,9 @@ static char *fixstr(char *str)
 {
     char *r, *s = (char *) xmalloc(sizeof(char) * strlen(str));
 
+    (void) yy_flex_realloc;
+    (void) yyunput;
+
     r = s;
     str++; /* skip open " */
     while (*str != '"') {