samples: openthread: Fix for coap client wo/ multiprotocol

The bluetooth header does not compile without bluetooth enabled
1. needed to ifdef ble_utils for cmake
2. had to #if instead of runtime if as the function will not be defined
3. had to #if callback functions as #2 des disable usage

Signed-off-by: Marek Porwisz <marek.porwisz@nordicsemi.no>

samples/openthread/coap_client/CMakeLists.txt

@@ -14,7 +14,10 @@ find_package(Zephyr HINTS $ENV{ZEPHYR_BASE})
 
 project(openthread_coap_client)
 
-FILE(GLOB app_sources src/*.c)
-target_sources(app PRIVATE ${app_sources})
+
+target_sources(app PRIVATE src/coap_client.c
+			   src/coap_client_utils.c)
+
+target_sources_ifdef(CONFIG_BT app PRIVATE src/ble_utils.c)
 
 target_include_directories(app PRIVATE ../coap_server/interface)

samples/openthread/coap_client/src/coap_client.c

@@ -7,15 +7,20 @@
 #include <dk_buttons_and_leds.h>
 #include <logging/log.h>
 
-#include "ble_utils.h"
 #include "coap_client_utils.h"
 
+#if CONFIG_BT
+#include "ble_utils.h"
+#endif
+
 LOG_MODULE_REGISTER(coap_client, CONFIG_COAP_CLIENT_LOG_LEVEL);
 
 #define OT_CONNECTION_LED DK_LED1
 #define BLE_CONNECTION_LED DK_LED2
 #define MTD_SED_LED DK_LED3
 
+#if CONFIG_BT
+
 #define COMMAND_REQUEST_UNICAST 'u'
 #define COMMAND_REQUEST_MULTICAST 'm'
 #define COMMAND_REQUEST_PROVISIONING 'p'
@@ -62,6 +67,8 @@ static void on_ble_disconnect(struct k_work *item)
 	dk_set_led_off(BLE_CONNECTION_LED);
 }
 
+#endif /* CONFIG_BT */
+
 static void on_ot_connect(struct k_work *item)
 {
 	ARG_UNUSED(item);
@@ -120,15 +127,16 @@ void main(void)
 		return;
 	}
 
-	if (IS_ENABLED(CONFIG_BT)) {
-		ret = ble_utils_init(&on_nus_received, NULL, on_ble_connect,
-				     on_ble_disconnect);
-		if (ret) {
-			LOG_ERR("Cannot init BLE utilities");
-			return;
-		}
+#if CONFIG_BT
+	ret = ble_utils_init(&on_nus_received, NULL, on_ble_connect,
+			     on_ble_disconnect);
+	if (ret) {
+		LOG_ERR("Cannot init BLE utilities");
+		return;
 	}
 
+#endif /* CONFIG_BT */
+
 	coap_client_utils_init(on_ot_connect, on_ot_disconnect,
 			       on_mtd_mode_toggle);
 }