Autoheader >= 2.50; make sure your system-wide `automake` points to
a recent version!)
- [GNU Libtool](http://www.gnu.org/software/autoconf/) >= 2.2
Autoheader >= 2.50; make sure your system-wide `automake` points to
a recent version!)
- [GNU Libtool](http://www.gnu.org/software/autoconf/) >= 2.2