--- lockdev-1.0.1/src/baudboy.h.kzak	2005-09-01 15:32:30.000000000 +0200
+++ lockdev-1.0.1/src/baudboy.h	2005-09-01 15:32:49.000000000 +0200
@@ -27,6 +27,7 @@
 #include <sys/types.h>
 #include <errno.h>
 #include <unistd.h>
+#include <fcntl.h>
 
 #ifdef	__cplusplus
 extern "C" {