Libsvm itself is required, and is available through some package
management - libsvm-devel for RPM based system or libsvm-dev for
Debian based ones. Alternatively it is available direct from the website.
If installing from the » official website
then some steps will need to be taken as the package does not install
automatically. For example, assuming the latest version is 3.1:
wget http://www.csie.ntu.edu.tw/~cjlin/cgi-bin/libsvm.cgi?+http://www.csie.ntu.edu.tw/~cjlin/libsvm+tar.gz
tar xvzf libsvm-3.1.tar.gz
cd libsvm-3.1
make lib
cp libsvm.so.1 /usr/lib
ln -s libsvm.so.1 libsvm.so
ldconfig
ldconfig --print | grep libsvm