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-rw-r--r--sys/kern/kern_mib.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c
index 2ccb207c5933..c10e5f23e2fe 100644
--- a/sys/kern/kern_mib.c
+++ b/sys/kern/kern_mib.c
@@ -39,6 +39,7 @@
__FBSDID("$FreeBSD$");
#include "opt_posix.h"
+#include "opt_config.h"
#include <sys/param.h>
#include <sys/kernel.h>
@@ -296,8 +297,12 @@ SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
"I", "Current secure level");
+#ifdef INCLUDE_CONFIG_FILE
/* Actual kernel configuration options. */
extern char kernconfstring[];
+#else
+char kernconfstring[] = "\0";
+#endif
static int
sysctl_kern_config(SYSCTL_HANDLER_ARGS)