Please visit the ENet homepage at http://enet.cubik.org for installation and usage instructions.
If you obtained this package from CVS, the quick description on how to build is:
# Generate the build system.
aclocal && automake -a -c --foreign && autoconf
# Compile and install the library.
./configure && make && make install
See pyenet/readme.txt for further information on Ling Lo's Python wrapper for ENet.