How to send video stream over UDP network by RTP

$sudo apt-get install libgstrtspserver-1.0 libgstreamer1.0-dev
$gcc test-launch.c -o test-launch $(pkg-config --cflags --libs gstreamer-1.0 gstreamer-rtsp-server-1.0)

test-launch.c: In function ��‘main��’:
test-launch.c:77:3: warning: implicit declaration of function ��‘gst_rtsp_media]
gst_rtsp_media_factory_set_enable_rtcp (factory, !disable_rtcp);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gst_rtsp_media_factory_set_latency
/tmp/ccTPL49B.o: In function main': test-launch.c:(.text+0x154): undefined reference to gst_rtsp_media_factory_set’
collect2: error: ld returned 1 exit status

I run these on Xavier , did the gcc on Xavier have problem?