dtc: Allow gcc format warnings for check_msg()
check_msg() takes printf() like arguments, so tell gcc to produce
printf() like warnings for it.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/checks.c b/checks.c
index 6325ee9..2ce961c 100644
--- a/checks.c
+++ b/checks.c
@@ -87,6 +87,9 @@
#define BATCH_CHECK(nm, lvl, ...) \
CHECK(nm, NULL, NULL, NULL, NULL, lvl, __VA_ARGS__)
+#ifdef __GNUC__
+static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
+#endif
static inline void check_msg(struct check *c, const char *fmt, ...)
{
va_list ap;