export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"


libusb-1.0.8
------------
./configure --prefix=/usr/local

make
sudo make install-strip

libusb-compat-0.1.3
-------------------
./configure --prefix=/usr/local

make
sudo make install-strip