mbed-trace: if fea-ipv6 is null, check nanostack-libservice availability

Author: LDong-Arm

platform/mbed-trace/include/mbed-trace/mbed_trace.h

@@ -69,7 +69,7 @@ extern "C" {
 #define MBED_CONF_MBED_TRACE_ENABLE 0
 #endif
 
-#ifndef MBED_CONF_MBED_TRACE_FEA_IPV6
+#if !defined(MBED_CONF_MBED_TRACE_FEA_IPV6) && MBED_CONF_NANOSTACK_LIBSERVICE_PRESENT
 #define MBED_CONF_MBED_TRACE_FEA_IPV6 1
 #endif
 

platform/mbed-trace/source/mbed_trace.c

@@ -21,7 +21,7 @@
 #undef MBED_CONF_MBED_TRACE_ENABLE
 #endif
 #define MBED_CONF_MBED_TRACE_ENABLE 1
-#ifndef MBED_CONF_MBED_TRACE_FEA_IPV6
+#if !defined(MBED_CONF_MBED_TRACE_FEA_IPV6) && MBED_CONF_NANOSTACK_LIBSERVICE_PRESENT
 #define MBED_CONF_MBED_TRACE_FEA_IPV6 1
 #endif