The devel/automake/1.15 port
automake-1.15.1 – GNU Standards-compliant Makefile generator
Automake is an experimental Makefile generator. It was inspired by the
4.4BSD make and include files, but aims to be portable and to conform to
the GNU standards for Makefile variables and targets.
Automake assumes the project uses autoconf. If you want automatic
dependency tracking support, the use of GNU make is also required.