http://gambaswiki.org/bugtracker/edit?object=BUG.889&from=L21haW4- Comment #4 by Benoît MINISINI: uuidgen is not a library, it's a component, so it is not concerned by the library management. You must make it a library to use it as a library now. Benoît MINISINI changed the state of the bug to: Accepted.