--- /dev/null
+--- error.h 2001-02-11 15:11:45.000000000 -0600
++++ error.h 2003-02-26 02:10:21.000000000 -0600
+@@ -1,7 +1,7 @@
+ #ifndef ERROR_H
+ #define ERROR_H
+
+-extern int errno;
++#include <errno.h>
+
+ extern int error_intr;
+ extern int error_nomem;