As directed in the readme, with all libraries installed I ran ./configure && make, and got
zsh: No such file or directory: ./configure.
One of the lines in the .gitignore is configure, which explains where it went.
A working command (for anyone stuck banging their heads against autotools) is:
aclocal -Im4 && autoconf && autoheader && automake --add-missing && ./configure && make.
Arch Linux, up-to-date as of 2017-09-04
GNU automake 1.15.1, GNU Autoconf 2.69
Latest commit: 101a48a