tce-load -i libva-dev

cd libva-intel-driver-1.6.1

CC="gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local -disable-static --localstatedir=/var --sysconfdir=/etc

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make
sudo make install

libva-intel-driver configuration summary:

VA-API version ................... : 0.38.0
VA-API drivers path .............. : /usr/local/lib/dri
Windowing systems ................ : drm x11