tce-load -i compiletc Xorg-7.7-dev guile-dev

cd xbindkeys-1.8.6

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 --localstatedir=/var

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

make
sudo make install

$ xbindkeys -d > ~/.xbindkeysrc

# Increase backlight
"xbacklight -inc 10"
   XF86MonBrightnessUp
# Decrease backlight
"xbacklight -dec 10"
   XF86MonBrightnessDown

$ xbindkeys --poll-rc