-ACLOCAL=aclocal
-AUTOHEADER="autoheader"
-AUTOMAKE="automake -a -c --foreign"
-AUTOCONF="autoconf"
-GNUM4=
-
-ACINCLUDE_FILES="lyxinclude.m4 libtool.m4 codeset.m4 gettext.m4 glibc21.m4 iconv.m4 isc-posix.m4 lcmessage.m4 progtest.m4 xforms.m4 qt.m4 gtk--.m4 gnome--.m4 gnome.m4 pspell.m4 pkg.m4"
-SIGCPP_ACINCLUDE_FILES="libtool.m4"
-
-echo -n "Locating GNU m4... "
-for prog in $M4 gm4 gnum4 m4 ; do
- case `$prog --version 2>&1` in
- *GNU*) ok=yes
- GNUM4=$prog
- echo "found: $GNUM4"
- break ;;
- *) ;;
- esac
-done
-if test x$ok = xno ; then
- echo "not found."
-fi
+test "$autoversion" != "" && {
+ echo "Using $autoversion"
+} || {
+ echo "LyX requires autoconf >= 2.59c"
+ exit 1
+}
+
+
+case $autoversion in
+ *' '2.59[cd]|*' '2.60[ab]|*' '2.6[0-9])
+ ;;
+ *)
+ echo "This autoconf version is not supported by LyX."
+ echo "LyX only supports autoconf 2.59c-2.69."
+ exit 1
+ ;;
+esac