Package: x265 Version: 1.8-3There's a mistake in the command that should create the final static library.
In debian/rules line 51: mv x265-8bit/libx265.a x265-8bit/lib264_main.a It should be: mv x265-8bit/libx265.a x265-8bit/libx265_main.aSo the static library is missing the object code for the 10 and 12 bit modes.