Tools::
* https://www.gnu.org/software/make/[GNU Make]
* **If you build from a Git clone**:
- ** https://www.gnu.org/software/automake/[GNU Automake]{nbsp}≥{nbsp}1.10
+ ** https://www.gnu.org/software/automake/[GNU Automake]{nbsp}≥{nbsp}1.12
** https://www.gnu.org/software/autoconf/[GNU Autoconf]{nbsp}≥{nbsp}2.64
** https://www.gnu.org/software/libtool/[GNU Libtool]{nbsp}≥{nbsp}2.2
** https://github.com/westes/flex[flex]{nbsp}≥{nbsp}2.5.35