[FFmpeg-user] ffmpeg version

[negin tebyani]

I have two systems that I am running ffmpeg on them. when I use the ffmpeg
-version command, the versions are so different.
this is the first system's ffmpeg version:

ffmpeg version N-85203-g400378b

and this is for the second system:

ffmpeg version 2.8.11

I tried to install 2.8.11 version on the first one. but still no result.
how can I fix this? i need to use x264opts. it works on second system. but
the first system does not include libx264 on the encoders list. so it can
not find the opts options.