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-rw-r--r--sys/netinet/tcp_debug.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/netinet/tcp_debug.c b/sys/netinet/tcp_debug.c
index 3b0edd8..d7a1d4e 100644
--- a/sys/netinet/tcp_debug.c
+++ b/sys/netinet/tcp_debug.c
@@ -31,11 +31,16 @@
* SUCH DAMAGE.
*
* @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93
- * $Id: tcp_debug.c,v 1.10 1997/08/02 14:32:55 bde Exp $
+ * $Id: tcp_debug.c,v 1.11 1997/09/16 18:36:04 joerg Exp $
*/
+#include "opt_inet.h"
#include "opt_tcpdebug.h"
+#ifndef INET
+#error The option TCPDEBUG requires option INET.
+#endif
+
#ifdef TCPDEBUG
/* load symbolic names */
#define PRUREQUESTS
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