Mini-XML comes with an autoconf-based configure script; just type the following command to get things going:
./configure ENTER
The default install prefix is /usr/local, which can be overridden using the --prefix option:
./configure --prefix=/foo ENTER
Other configure options can be found using the --help option:
./configure --help ENTER
Once you have configured the software, use the make(1) program to do the build and run the test program to verify that things are working, as follows:
make ENTER