I use Automake and Autoconf (which generates the Makefile) for GNU ease.js:

https://git.savannah.gnu.org/cgit/easejs.git/tree/Makefile.a... https://git.savannah.gnu.org/cgit/easejs.git/tree/configure....

The nice thing with using Automake is that it gives all the standard build targets with little additional effort (for example, `make dist` for producing the distribution tarball, and `make distcheck` for verifying that it's good).

I use a much simpler one for a project at work:

https://gitlab.com/lovullo/liza/blob/master/Makefile.am https://gitlab.com/lovullo/liza/blob/master/configure.ac