Compile with -Wextra by default

This produced lots of warning, some of which pointed to actual bugs.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/Kill.c b/Kill.c
index b3344bd2..3d1810f0 100644
--- a/Kill.c
+++ b/Kill.c
@@ -97,7 +97,7 @@ int Kill_subarray(char *dev, char *subarray, int quiet)
 	memset(st, 0, sizeof(*st));
 
 	if (snprintf(st->subarray, sizeof(st->subarray), "%s", subarray) >=
-	    sizeof(st->subarray)) {
+	    (int)sizeof(st->subarray)) {
 		if (!quiet)
 			fprintf(stderr,
 				Name ": Input overflow for subarray '%s' > %zu bytes\n",