After upgrading my laptop from Jessie 8.8 to Debian 9 Stretch on the 19th of June, 2017, PAC Manager stopped working. Specifically, it would start, but hanged when I tried to open a connection, either ssh or local. After searching around, I found the following post which seems to have given the solution:
https://sourceforge.net/p/pacmanager/bugs/293/
The interesting parts were:
https://sourceforge.net/p/pacmanager/bugs/293/#06b8 and the comment reply at
https://sourceforge.net/p/pacmanager/bugs/293/#06b8/c89e
The complete solution to the issue for me was running the following commands as root (or via sudo if you prefer) :
apt-get install libglib2.0-dev libpango1.0-dev libvte-dev libvte-2.91-dev \ dh-make-perl libextutils-pkgconfig-perl libextutils-depends-perl dh-make-perl --cpan Gnome2::Vte --build dpkg -i libgnome2-vte*.deb find /opt/pac/ -name "Vte.so*" -exec rm {} +
PAC works wonderfully again. Kudos to the original posters who proposed a working solution.