A while back, pulled down Xilinx ISE Webpack for 32 bit linux. Roughly following: http://gentoo-wiki.com/HOWTO_Xilinx

Wrote the following and put into ~/bin/goise:

echo "Starting ISE ..."
. /home/erg/bin/setting32.sh
export LD_PRELOAD=/usr/local/down/usb-driver/libusb-driver.so
ise