export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"
export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig

vbetool-1.1
-----------
load pci-utils, libx86 extensions

./configure --prefix=/usr/local
make
sudo make install-strip

$ sudo vbetool vbemode get
16645