Build issues in Ubuntu 16.04

[aungthetnaing]

Building as part of https://software.intel.com/en-us/articles/the-openvino-toolkit-and-the-intel-media-sdk-part-1

Make failing with

libavutil/libavutil.a(hwcontext_vaapi.o): In function vaapi_device_connect': /home/movidius/Intel_FFmpeg_plugins/libavutil/hwcontext_vaapi.c:1156: undefined reference tovaSetErrorCallback' /home/movidius/Intel_FFmpeg_plugins/libavutil/hwcontext_vaapi.c:1157: undefined reference to vaSetInfoCallback' collect2: error: ld returned 1 exit status Makefile:108: recipe for target 'ffserver_g' failed make: *** [ffserver_g] Error 1 make: *** Waiting for unfinished jobs.... libavutil/libavutil.a(hwcontext_vaapi.o): In functionvaapi_device_connect': /libavutilhome//movidiuslibavutil.a/(Intel_FFmpeg_pluginshwcontext_vaapi.o/)libavutil:/ hwcontext_vaapi.cIn: 1156function: undefinedvaapi_device_connect 'reference: to/ home/vaSetErrorCallbackmovidius'/ Intel_FFmpeg_plugins//homelibavutil//movidiushwcontext_vaapi.c/:Intel_FFmpeg_plugins1156/:libavutil /undefinedhwcontext_vaapi.c :reference1157 :to undefinedvaSetErrorCallbackreference' to/ home/vaSetInfoCallbackmovidius'/ Intel_FFmpeg_plugins/libavutil/hwcontext_vaapi.c:1157: undefined reference to vaSetInfoCallback' collect2: error: ld returned 1 exit status collect2: error: ld returned 1 exit status Makefile:108: recipe for target 'ffmpeg_g' failed make: *** [ffmpeg_g] Error 1 Makefile:108: recipe for target 'ffplay_g' failed make: *** [ffplay_g] Error 1 libavutil/libavutil.a(hwcontext_vaapi.o): In functionvaapi_device_connect': /home/movidius/Intel_FFmpeg_plugins/libavutil/hwcontext_vaapi.c:1156: undefined reference to vaSetErrorCallback' /home/movidius/Intel_FFmpeg_plugins/libavutil/hwcontext_vaapi.c:1157: undefined reference tovaSetInfoCallback' collect2: error: ld returned 1 exit status Makefile:108: recipe for target 'ffprobe_g' failed