Fabric task to install libxml and libxslt from source.

fabfile.py

def install_libxml(tag='v2.8.0'):
    run('git clone git://git.gnome.org/libxml2')
    with('cd libxml'):
        run('git reset %s' % tag)
        run('./autogen.sh')
        run('make')
        sudo('make install')
    run('rm -rf libxml')

def install_libxslt(tag='v1.1.26'):
    run('git clone git://git.gnome.org/libxslt')
    with('cd libxslt'):
        run('git reset %s' % tag)
        run('./autogen.sh')
        run('make')
        sudo('make install')
    run('rm -rf libxslt')