--- src/dbase/irr_lexer.y.orig	Sat Nov 27 18:22:22 1999
+++ src/dbase/irr_lexer.y	Sat Nov 27 18:22:44 1999
@@ -73,7 +73,7 @@
 
 #include <cctype>
 
-static inline strtoupper(char *c) {
+static inline void strtoupper(char *c) {
    for (; *c; c++)
       if (isascii(*c) && isalpha(*c))
 	 *c = toupper(*c);