Bug#1121314: galois: depends on superseded libxml++2.6

[Gerardo Ballabio]

Hello,
I'm the uploader and also upstream of Galois.

I wasn't aware that libxml++2.6 is obsolete. Thanks for letting me know.

Of course I'm interested in upgrading to a newer version. Reading from
<https://libxmlplusplus.github.io/libxmlplusplus/> it looks like I
want version 4.0 (Galois is based on gtkmm so I have no reason to move
away from Glib::ustring, and I'd like to keep UTF-8 support). But I
don't know either what is the difference (and incompatibility?)
between Glib::ustring in glibmm-2.4 and 2.68.

Anyway, if nobody else is going to package the newer versions, I might
give it a try. But my experience with Debian packaging is limited to
Galois, which is a very simple package, so I can't guarantee that I'll
be able to succeed.

Meanwhile, there's no plan to remove libxml++2.6 from Debian unless it
gets some unfixed RC bug, is there?

Gerardo