@@ -1,7 +1,13 @@
 #! /bin/bash
+
+if [ -n "${VERS}" ]; then
+	sed "s|@@VERS@@|${VERS}|g" configure.ac > configure.ac.new
+	cat configure.ac.new > configure.ac
+	rm -f configure.ac.new
+fi
 
 cat aclocal/*.m4 > aclocal.m4 || exit 1
 autoconf || exit 1
 rm -rf autom4te.cache/
 
 exit 0