watchdog: build fixes, no code changes

diff --git a/miscutils/watchdog.c b/miscutils/watchdog.c
index 75a399f..f85138e 100644 (file)
--- a/miscutils/watchdog.c
+++ b/miscutils/watchdog.c
@@ -10,6 +10,7 @@
  */
 
 #include "libbb.h"
+#include "linux/types.h" /* for __u32 */
 #include "linux/watchdog.h"
 
 #define OPT_FOREGROUND  (1 << 0)
@@ -57,7 +58,11 @@ int watchdog_main(int argc, char **argv)
 
        /* WDIOC_SETTIMEOUT takes seconds, not milliseconds */
        htimer_duration = htimer_duration / 1000;
+#ifndef WDIOC_SETTIMEOUT
+#error WDIOC_SETTIMEOUT is not defined, cannot compile watchdog applet
+#else
        ioctl_or_warn(3, WDIOC_SETTIMEOUT, &htimer_duration);
+#endif
 #if 0
        ioctl_or_warn(3, WDIOC_GETTIMEOUT, &htimer_duration);
        printf("watchdog: SW timer is %dms, HW timer is %dms\n",
@@ -70,8 +75,8 @@ int watchdog_main(int argc, char **argv)
 
        while (1) {
                /*
-                * Make sure we clear the counter before sleeping, as the counter value
-                * is undefined at this point -- PFM
+                * Make sure we clear the counter before sleeping,
+                * as the counter value is undefined at this point -- PFM
                 */
                write(3, "", 1); /* write zero byte */
                usleep(stimer_duration * 1000L);