The autoconf script checked into the repository assumes that I have aclocal-1.10, but I have aclocal-1.11, so I autoreconf -fi to fix it. (I recommend not checking this stuff into the repository.) Then the build fails because of -Werror=unused-but-set-variable (it's better to cast return to void than to try to trick the compiler by assigning to a variable that you don't look at). You have two versions of the README that are both in markdown, but differ in a few lines. There doesn't seem to be any automated support for building and running the tests.