For this software-package the LGPL Lesser General Public License, published by the Free Software Foundation is valid at first. This is valid, if no other special licence contract is agreed. It means:
You mustn't delete this Copyright/Copyleft inscription in this software package. If you need only a part of this software-package, you must place this Copyright/Copyleft inscription at a easily noticeable position in the adequate file tree.
If this software or a part of them will be used in a comprehensive
software-package without free publishing of its content or usage, then
a special licence agreement in any other form is possible. All
developers of this software-package should agree to it, with
subscribing a contract, which is stored by both partners in
paper-written form. The state of existence of such a contract doesn't
need to be published.
But a proper hint to the special licence agreement have to be stored at a position in the file-tree, which is able to visit from outside, if the content of the files are able to visit from outside too. If the sources and its usage and the licence is secrecy, it is okay too.
The only one developer for this software-package is Hartmut Schorrig, Pinzberg, Germany. mailto: hartmut.schorrig@vishia.org