As the Debian maintainer for this package I don't know what has happened with the build on Ubuntu. I can confirm that rebuilding from source solves the problem for me too, so I suspect it was a problem with octave being updated after plplot had been build. plplot_octave is definitely in the path, but just not recognised.
-- `plplot_octave' undefined https://bugs.launchpad.net/bugs/504216 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs