Index: icalroutines.h
===================================================================
--- icalroutines.h
+++ icalroutines.h	2013-07-10 21:02:39.325636638 +0200
@@ -49,7 +49,7 @@
 
 /* ICAL parser. */
 extern char	*ical_yytext;
-extern int	ical_yyleng;
+extern size_t	ical_yyleng;
 int		ical_yylex(void);
 void		ical_usebuf(const char *buf, size_t size);
 void		ical_preprocess(char *buf, size_t *size);