**Autoheader >= 2.69**;
make sure your system-wide `automake` points to a recent version!)
- **[GNU Libtool](https://www.gnu.org/software/libtool/) >= 2.2**
**Autoheader >= 2.69**;
make sure your system-wide `automake` points to a recent version!)
- **[GNU Libtool](https://www.gnu.org/software/libtool/) >= 2.2**