Due to the dependencies between the projects it isn't possible to build each module separately. You should checkout the whole project and build it. It won't take long time.
This is the single command line required for Linux users.
svn checkout http://svn.code.sf.net/p/io-tools/code/trunk io-tools && cd io-tools && mvn clean install -T2
If you want to skip the tests add the following options to the maven command line -DskipTests