diff --git a/include/sysdep.h b/include/sysdep.h
index 9f39a5d31ce..e69da675a50 100755
--- a/include/sysdep.h
+++ b/include/sysdep.h
@@ -44,6 +44,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define HP9000_SYS 11
 #define APOLLO400_SYS 12
 #define DOS_SYS 13
+#define	VAX_BSD_SYS 14
+#define	TAHOE_BSD_SYS 15
+
 #include <ansidecl.h>
 
 #if __STDC__
@@ -111,4 +114,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include <sys/h_dos.h>
 #endif
 
+#if HOST_SYS == VAX_BSD_SYS
+#include <sys/h-vaxbsd.h>
+#endif
+
+#if HOST_SYS == TAHOE_BSD_SYS
+#include <sys/h-tahoebsd.h>
+#endif
+
 #endif