On Sun, 30 Aug 2020 19:32:15 -0400 John Scott <jsc...@posteo.net> wrote: > It appears mutool can't verify signed PDFs because it wasn't built > with OpenSSL support: > $ mutool sign -v signed.pdf > verifying signature 81 > error: No OpenSSL support. > error processing signatures: No OpenSSL support. > > I realize that since MuPDF uses the AGPL this is probably due to the > licenses clashing, but OpenSSL 3.0 with Apache v2 is in experimental > and might help the situation.
OpenSSL is considered a system library (GPL: "major component of the operating system") in Debian as of http://meetbot.debian.net/debian-ftp/2020/debian-ftp.2020-03-13-20.02.html With that, the exception for system libraries can be invoked and an AGPL-licensed program may link with OpenSSL without an additional exception. So, the #951705 changes can be reverted.
