Hi Mauro, Firstly, I should note that I'm still using Ubuntu 8.04, Horae 067 and Ifeffit 1.2.10a (I had a problem with Ifeffit 1.2.11 described in another post: "Ifeffit 1.2.11b terminal output"; I don't know if PGPLOT was the cause). I've always built Horae and Ifeffit from source rather than use binary packages.
First of all let me say that Ifeffit builds fine if I use the "pgplot5" binary package, BUT, as stated by Matt in the README.PGPLOT, Ifeffit will compile without plotting support in this case.
Interesting, I'd never even noticed README.PGPLOT... Ifeffit "./configure --with-pgplot-link=-lpgplot" using Ubuntu's PGPLOT package has always* worked for me, at least well enough for using Horae (I use gnuplot to save plots to files). I don't know then what's broken in the binary packages from Ifeffit's point of view, so hopefully someone more knowledgeble can clarify that, but if you just want plots in Athena and Artemis the --with-pgplot-link method seems to work. [* Some Ubuntu versions needed "-lpng" and "-lX" too, from memory, so if ld complains about missing symbols try adding these.] Gareth