-Build-Depends: debhelper (>= 2.0.71), python-base (>= 1.5.2-4), libguile6-dev, tetex-bin (>= 1.0.5-1), tetex-base (>= 1.0-1), tetex-extra (>= 1.0-1), flex (>= 2.5.4a-1), bison (>= 1:1.28-1), texinfo (>= 4.0-1)
+Build-Depends: debhelper (>= 2.0.72), python-base (>= 1.5.2-4), libguile9-dev, tetex-bin, libkpathsea-dev, tetex-extra, flex, bison, texinfo (>= 4.0-1), groff, gs, netpbm, pnmtopng, m4, gettext (>= 0.10.35-13)