Topic listener: Re-enable in build

src/systemcmds/topic_listener/CMakeLists.txt

@@ -31,23 +31,23 @@
 #
 ############################################################################
 
-#add_custom_command(OUTPUT topic_listener.cpp
-#                COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/Tools/generate_listener.py ${CMAKE_SOURCE_DIR} > topic_listener.cpp
-#                )
+add_custom_command(OUTPUT topic_listener.cpp
+                COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/Tools/generate_listener.py ${CMAKE_SOURCE_DIR} > topic_listener.cpp
+                )
 
-#add_custom_target(generate_topic_listener
-#	DEPENDS topic_listener.cpp)
+add_custom_target(generate_topic_listener
+	DEPENDS topic_listener.cpp)
 
-#px4_add_module(
-#	MODULE systemcmds__topic_listener
-#	MAIN listener
-#	STACK 1800
-#	COMPILE_FLAGS
-#		-Os
-#	SRCS
-#		topic_listener.cpp
-#	DEPENDS
-#		platforms__common
-#		generate_topic_listener
-#	)
+px4_add_module(
+	MODULE systemcmds__topic_listener
+	MAIN listener
+	STACK 1800
+	COMPILE_FLAGS
+		-Os
+	SRCS
+		topic_listener.cpp
+	DEPENDS
+		platforms__common
+		generate_topic_listener
+	)
 # vim: set noet ft=cmake fenc=utf-8 ff=unix :