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-rw-r--r--sys/i386/isa/if_sr.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/i386/isa/if_sr.c b/sys/i386/isa/if_sr.c
index 604632f..c27467a 100644
--- a/sys/i386/isa/if_sr.c
+++ b/sys/i386/isa/if_sr.c
@@ -27,7 +27,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $Id: if_sr.c,v 1.8 1997/07/20 14:10:01 bde Exp $
+ * $Id: if_sr.c,v 1.9 1997/09/02 01:18:16 bde Exp $
*/
/*
@@ -55,6 +55,11 @@
#endif
#include "bpfilter.h"
+#include "sppp.h"
+#if NSPPP <= 0
+#error Device 'sr' requires sppp.
+#endif
+
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
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