@@ -3566,13 +3566,18 @@ requirements hat GPLv3 are as follows:
advertising rights). The third clause of the
\href{http://opensource.org/licenses/BSD-3-Clause}{3-Clause BSD
License}, for example, long considered de-facto compatible with GPLv2
anyway, is via this clause unequivocally compatible with GPLv3. However,
\href{https://www.gnu.org/licenses/license-list.html#OriginalBSD}{this
clause \textit{does not} make GPL compatible with the old BSD
advertising clause} that the FSF
\href{https://www.gnu.org/philosophy/bsd.html}{long ago identified as
problematic}.
problematic}. BSD removed this clause from it's license in 1999; but
licenses retaining an analagous clause are still prevalent today, notably
the \href{https://www.gnu.org/licenses/license-list.html#OpenSSL}{OpenSSL
License} of the widely-used OpenSSL library. For this reason,
section \ref{bsd4clause-openssl} of this guide is devoted entirely
to that particular conflict.
\item This provision clarifies that refusal to grant trademark rights for a
GPLv3'd covered work remains compatible with GPLv3. Again, some
non-copyleft permissive licenses include such clauses.