use autogen.sh from e. should fix jenkins' issue

Thanks to discomfitor

autogen.sh

@@ -3,14 +3,10 @@
 rm -rf autom4te.cache
 rm -f aclocal.m4 ltmain.sh
 
-touch README
-
-echo "Running aclocal..." ; aclocal -I m4 $ACLOCAL_FLAGS || exit 1
-echo "Running autoheader..." ; autoheader || exit 1
-echo "Running autoconf..." ; autoconf || exit 1
-echo "Running libtoolize..." ; (libtoolize --copy --automake || glibtoolize --automake) || exit 1
-echo "Running automake..." ; automake --add-missing --copy --gnu || exit 1
+autoreconf --symlink --install || exit 1
 
 if [ -z "$NOCONFIGURE" ]; then
-	./configure "$@"
+  exec ./configure -C "$@"
 fi
+
+exit 0