Original commit message from CVS:
autoconf for freebsd
echo -n "+ check for build tools"
if test ! -z "$NOCHECK"; then echo ": skipped version checks"; else echo; fi
-version_check "autoconf" "$AUTOCONF autoconf autoconf-2.54 autoconf-2.53 autoconf-2.52" \
+version_check "autoconf" "$AUTOCONF autoconf autoconf-2.54 autoconf-2.53 autoconf-2.52 autoconf252" \
"ftp://ftp.gnu.org/pub/gnu/autoconf/" 2 52 || DIE=1
version_check "automake" "$AUTOMAKE automake automake-1.7 automake17 automake-1.6" \
"ftp://ftp.gnu.org/pub/gnu/automake/" 1 6 || DIE=1