diff -uNr easytag-0.27.orig/src/about.c easytag-0.27/src/about.c
--- easytag-0.27.orig/src/about.c	Wed Jan 29 18:49:06 2003
+++ easytag-0.27/src/about.c	Fri Apr  4 14:16:29 2003
@@ -21,6 +21,7 @@
 
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
+#include <errno.h>
 #include <stdio.h>
 #include <string.h>
 #include <id3.h>