--- rxvt-unicode/src/logging.C	2007/12/12 09:44:52	1.45
+++ rxvt-unicode/src/logging.C	2008/05/05 16:51:52	1.46
@@ -48,6 +48,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <time.h>
+#include <errno.h>
 
 /*
  * BSD style utmp entry