--- libcgiupl-0.1/cgiupl.c.old	1998-05-12 04:55:54.000000000 +0200
+++ libcgiupl-0.1/cgiupl.c	2005-04-26 15:23:12.000000000 +0200
@@ -31,6 +31,7 @@
 #include <sys/stat.h>
 #include <string.h>
 #include <ctype.h>
+#include <errno.h>
 
 #include <cgiupl.h>