* Bison (version 1.25 or newer). Check out ftp://ftp.gnu.org/bison/
(ftp://ftp.gnu.org/bison/).
- * Texinfo. Check out ftp://ftp.gnu.org/pub/texinfo/
- (ftp://ftp.gnu.org/pub/texinfo/). Most documentation is in
- texinfo.
+ * Texinfo (version 4.0 or newer). Check out
+ ftp://ftp.gnu.org/pub/texinfo/ (ftp://ftp.gnu.org/pub/texinfo/).
+ Most documentation is in texinfo.
* The geometry package for LaTeX is needed to use ly2dvi. Available
at