-linux_sample_env.AppendUnique(LIBS = ['libTGMSDKLibrary', 'oc', 'octbstack', 'libcoap', 'liboc_logger', 'dl', 'pthread'])
+linux_sample_env.AppendUnique(LIBS = ['libTGMSDKLibrary', 'oc', 'octbstack',
+ 'connectivity_abstraction',
+ 'libcoap', 'liboc_logger', 'dl', 'pthread'])
+if env.get('SECURED') == '1':
+ linux_sample_env.AppendUnique(LIBS = ['tinydtls'])