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

load python extension

libxml2-2.6.32
--------------
./configure --prefix=/usr/local --with-docbook --with-python --with-zlib

make
sudo make install-strip