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-rw-r--r--sys/amd64/isa/clock.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c
index b7c6a2a9ee7e..6dc58968f6a8 100644
--- a/sys/amd64/isa/clock.c
+++ b/sys/amd64/isa/clock.c
@@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
- * $Id: clock.c,v 1.42 1995/12/20 20:57:33 wollman Exp $
+ * $Id: clock.c,v 1.43 1995/12/24 08:10:52 davidg Exp $
*/
/*
@@ -47,6 +47,8 @@
/*
* Primitive clock interrupt routines.
*/
+#include "opt_ddb.h"
+
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>