diff --git a/examples/jn516x/dr1175-sensors/node.c b/examples/jn516x/dr1175-sensors/node.c
index bf1b4c89b..e30bfea3d 100644
--- a/examples/jn516x/dr1175-sensors/node.c
+++ b/examples/jn516x/dr1175-sensors/node.c
@@ -38,6 +38,7 @@
 #include "light-sensor.h"
 #include "ht-sensor.h"
 #include "leds.h"
+#include "leds-extension.h"
 
 /*---------------------------------------------------------------------------*/
 PROCESS(test_process, "Sensor test process");
diff --git a/examples/jn516x/rime/node.c b/examples/jn516x/rime/node.c
index 261fd61ad..dd8fd37b7 100644
--- a/examples/jn516x/rime/node.c
+++ b/examples/jn516x/rime/node.c
@@ -101,9 +101,10 @@ PROCESS_THREAD(unicast_test_process, ev, data)
     }
 
     if(!runicast_is_transmitting(&runicast)) {
-      linkaddr_t recv = { 0 };
       static char buffer[100] = "hello";
+      linkaddr_t recv;
 
+      memset(&recv, 0, LINKADDR_SIZE);
       packetbuf_copyfrom(buffer, sizeof(buffer));
       recv.u8[0] = RX_ADDR1;
       recv.u8[1] = RX_ADDR2;
diff --git a/examples/jn516x/rpl/border-router/border-router.c b/examples/jn516x/rpl/border-router/border-router.c
index d36130607..a260aef3b 100644
--- a/examples/jn516x/rpl/border-router/border-router.c
+++ b/examples/jn516x/rpl/border-router/border-router.c
@@ -28,6 +28,7 @@
  */
 
 #include "contiki.h"
+#include "dev/slip.h"
 #include "net/rpl/rpl.h"
 #include "tools/rpl-tools.h"
 
diff --git a/examples/jn516x/rpl/coap-dongle-node/dongle-node.c b/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
index c49bc9e7c..ab5845dff 100644
--- a/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
+++ b/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
@@ -79,8 +79,6 @@ static void
 put_post_led_toggle_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   static int led_state = 0;
-  const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
 
   /* Given the way the LEDs are connected to the DIO ports, the LEDs are controlled via direct DIO access. */
diff --git a/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c b/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
index f6eba5f32..f377dc3b3 100644
--- a/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
+++ b/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
@@ -39,8 +39,10 @@
 #include "light-sensor.h"
 #include "ht-sensor.h"
 #include "dev/leds.h"
+#include "dev/leds-extension.h"
 #include "sys/etimer.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static void event_sensors_dr1175_handler(void);
 static void get_sensors_dr1175_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
@@ -247,13 +249,12 @@ static void
 put_post_white_led_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content = NULL;
-  int request_content_len;
   int level;
 
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     level = atoi((const char *)request_content);
     CLIP(level, 255)
     leds_set_level(level, LEDS_WHITE);
@@ -272,7 +273,6 @@ static void
 put_post_rgb_led_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content = NULL;
-  int request_content_len;
   char *pch;
   int RGB[] = { 0, 0, 0 };
   int index = 0;
@@ -280,7 +280,7 @@ put_post_rgb_led_handler(void *request, void *response, uint8_t *buffer, uint16_
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     pch = strtok((char *)request_content, " ");
     while((pch != NULL) && (index != sizeof(RGB) / sizeof(int))) {
       /* Convert token to int */
@@ -308,11 +308,10 @@ static void
 put_post_led_d3_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP0);
   }
 }
@@ -329,11 +328,10 @@ static void
 put_post_led_d6_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP1);
   }
 }
diff --git a/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c b/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
index 91921fed1..373922e58 100644
--- a/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
+++ b/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
@@ -39,6 +39,7 @@
 #include "button-sensor.h"
 #include "pot-sensor.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static char content[REST_MAX_CHUNK_SIZE];
 static int content_len = 0;
@@ -238,11 +239,10 @@ static void
 put_post_led_d1_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GREEN)
   }
 }
@@ -256,11 +256,10 @@ static void
 put_post_led_d2_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_BLUE)
   }
 }
@@ -274,11 +273,10 @@ static void
 put_post_led_d3_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_RED)
   }
 }
@@ -292,11 +290,10 @@ static void
 put_post_led_d3_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP0);
   }
 }
@@ -310,11 +307,10 @@ static void
 put_post_led_d6_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP1);
   }
 }
@@ -328,11 +324,10 @@ static void
 put_post_led_all_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     if(atoi((const char *)request_content) != 0) {
       leds_on(LEDS_ALL);
     } else {