blobmsg_json: use cross-platform macro for fprintf on 64-bit values

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/blobmsg_json.c b/blobmsg_json.c
index 05779eb8413bed4dbfb3c8818968d8b1670eb83a..8f208e0c5c62cc5544411d7b7aeb025ea2375152 100644 (file)
--- a/blobmsg_json.c
+++ b/blobmsg_json.c
@@ -13,6 +13,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
+#include <inttypes.h>
 #include "blobmsg.h"
 #include "blobmsg_json.h"
 
@@ -243,7 +244,7 @@ static void blobmsg_format_element(struct strbuf *s, struct blob_attr *attr, boo
                sprintf(buf, "%d", (int32_t) be32_to_cpu(*(uint32_t *)data));
                break;
        case BLOBMSG_TYPE_INT64:
-               sprintf(buf, "%lld", (long long int) be64_to_cpu(*(uint64_t *)data));
+               sprintf(buf, "%" PRId64, (int64_t) be64_to_cpu(*(uint64_t *)data));
                break;
        case BLOBMSG_TYPE_STRING:
                blobmsg_format_string(s, data);