Some libraries come with a test suite. If you wish to execute them, either comment out the <command>rm -rf ...</command> below, so that, after all libraries are installed, you can come back to the corresponding directory and run <command>make check</command>, or do individual builds, running the tests for each of those distributed with working test suites.Alternatively, you can uncomment the line #<command>make check ...</command>, and at the end, check the test results with: