Branden's woody DEBs now build without modification on potato, so I don't even know if it's necessary to rebuild them anymore... In anycase, I have done so (lotsa cpu time available :) and these are available from:
deb http://people.debian.org/%7Ecpbotha/ xf401_potato/i386/ deb http://people.debian.org/%7Ecpbotha/ xf401_potato/all/ -- charl p. botha | computer graphics and cad/cam http://cpbotha.net/ | http://www.cg.its.tudelft.nl/