diff -urN ucspi-tcp-0.88/error.h ucspi-tcp-0.88-modif/error.h
--- ucspi-tcp-0.88/error.h	2003-03-04 10:27:49.000000000 +0100
+++ ucspi-tcp-0.88-modif/error.h	2003-03-04 10:27:40.000000000 +0100
@@ -1,6 +1,9 @@
 #ifndef ERROR_H
 #define ERROR_H
 
+#include <sys/errno.h>
+#include <errno.h>
+
 extern int errno;
 
 extern int error_intr;