That package is for i386 and I have as specificed an amd64 system, also apt-get build-dep xchat-gnome yields:
Reading package lists... Done Building dependency tree... Done E: Build-dependencies for xchat-gnome could not be satisfied. So I am unable to rebuild it manually. -- xchat-gnome crashes on start up https://launchpad.net/bugs/51305 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
