GNU Make is not a dependency of autotools or autoconf in some
distros (e.g. Debian). Making the requirement explicit may help
those with less experience building software.
Change-Id: Ic30cb42e73d17c8efa33d7345f19c83354f744e9
Signed-off-by: Kienan Stewart <kstewart@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
**Autoheader >= 2.69**;
make sure your system-wide `automake` points to a recent version!)
- **[GNU Libtool](https://www.gnu.org/software/libtool/) >= 2.2**
+ - **[GNU Make](https://www.gnu.org/software/make/)**
- **[pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/)**