Hi vxl users,

I'm running into some difficulty on compiling vxl 1.14.0, specifically I'm getting the following error messages,

[ 30%] Built target example_create_image_vil
[ 30%] Building CXX object core/vidl/CMakeFiles/vidl.dir/vidl_ffmpeg_convert.o
In file included from /usr/include/libavutil/avutil.h:81,
                 from /usr/include/libavcodec/avcodec.h:30,
                 from /home/phil/vxl-1.14.0/core/vidl/vidl_ffmpeg_convert.h:21,
                 from /home/phil/vxl-1.14.0/core/vidl/vidl_ffmpeg_convert.cxx:12:
/usr/include/libavutil/common.h: In function ‘int32_t av_clipl_int32(int64_t)’:
/usr/include/libavutil/common.h:154: error: ‘UINT64_C’ was not declared in this scope
make[2]: *** [core/vidl/CMakeFiles/vidl.dir/vidl_ffmpeg_convert.o] Error 1
make[1]: *** [core/vidl/CMakeFiles/vidl.dir/all] Error 2
make: *** [all] Error 2

I am trying to install on a fairly fresh build of ubuntu after following the vxl installation guide. I have looked through the mailing list archives for a similar problem but have not been able to get past this error by using the tips found. Synaptic package manager says that I have ffmpeg version 4:0.6-2ubuntu6 installed. 

Any help would be greatly appreciated,

Many thanks in advance,