examples: fix build.

- runqueue-example.c: fix include path for in-tree build.
 - blobmsg-example.c: add inttypes.h for using PRIu64.
 - add examples/ subdirectory to main CMakeLists.txt

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

CMakeLists.txt

@@ -39,6 +39,7 @@ INSTALL(TARGETS ubox ubox-static
 )
 
 ADD_SUBDIRECTORY(lua)
+ADD_SUBDIRECTORY(examples)
 
 find_library(json NAMES json-c)
 IF(EXISTS ${json})

examples/blobmsg-example.c

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <inttypes.h>
 
 #include "blobmsg.h"
 #include "blobmsg_json.h"

examples/runqueue-example.c

@@ -16,11 +16,11 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <libubox/uloop.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
 
+#include "uloop.h"
 #include "runqueue.h"
 
 static struct runqueue q;