On Jan 3, 2013, at 9:28 AM, Ken Arromdee wrote:

On Wed, 2 Jan 2013, Lawrence Rosen wrote:
Regardless of whether a library is licensed under the GPL or the LGPL, a licensee will have to disclose *source code* of the library and *source
code* of derivative works of the library.

If you agree with the FSF's position on what a derivative work is, a work that links to a LGPL library is a derivative work but you are not required
to release source for it.

Just some input to make the discussion easier to follow. Neither GPLv3 nor LGPLv3 uses the term "derivative work" but seem to consider linked versions to be "based on the earlier work". The relevant LGPL exceptions to the source code requirement are as follows:

This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below.

A “Combined Work” is a work produced by combining or linking an Application with the Library. The particular version of the Library with which the Combined Work was made is also called the “Linked Version”.

You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following:

[snip]

Best regards
Björn Terelius
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