Fix build from implicit declaration.

Turn the warning on by default and turn on -Werror so this doesn't
happen next time.

Change-Id: Id65bf0cb63bbf0ff224655b425463ae2f55435df
diff --git a/minadbd/services.c b/minadbd/services.c
index 357c222..7e419cc 100644
--- a/minadbd/services.c
+++ b/minadbd/services.c
@@ -14,18 +14,19 @@
  * limitations under the License.
  */
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
 #include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 #include "sysdeps.h"
-#include "fdevent.h"
-#include "fuse_adb_provider.h"
 
 #define  TRACE_TAG  TRACE_SERVICES
 #include "adb.h"
+#include "fdevent.h"
+#include "fuse_adb_provider.h"
 
 typedef struct stinfo stinfo;
 
@@ -52,7 +53,8 @@
     s = adb_strtok_r(NULL, ":", &saveptr);
     uint32_t block_size = strtoul(s, NULL, 10);
 
-    printf("sideload-host file size %llu block size %lu\n", file_size, block_size);
+    printf("sideload-host file size %llu block size %" PRIu32 "\n", file_size,
+           block_size);
 
     int result = run_adb_fuse(sfd, file_size, block_size);