@item If you have an unpacked source tree of a previous version, you
may the patches.
-@emph{If you upgrade by patching do remember to rerun autoconf after
-applying the patch}.
+@emph{If you upgrade by patching do remember to rerun autoconf after makefilesapplying the patch}.
@item If you have the @code{.tar.gz} file of a previous release, you can
use
@item Python (version 2.1 or newer).
Check out @uref{http://www.python.org, the python website}.
-@item GUILE (version 1.6 or newer).
+@item GUILE (version 1.6.4 or newer).
Check out
@uref{http://www.gnu.org/software/guile/guile.html,the GUILE webpage}.
-@item GNU Make.
+@item GNU Make (version 3.78 or newer).
Check out
@uref{ftp://ftp.gnu.org/gnu/make/, the GNU
make FTP directory}.