Can't rebuild source packages in Kubuntu Precise

I'm trying to rebuild freeciv source packages on Kubuntu 12.04 LTS, but I'm getting errors:

$ sudo apt-get build-dep freeciv
<no errors, several dependencies installed>

$ sudo apt-get source freeciv-client-gtk
<no error, source packages downloaded and uncompressed>

$ cd freeciv-2.3.1/
$ dpkg-buildpackage
<snip>
checking for GGZ library: libggz... yes (libraries /usr/lib, headers /usr/include)
checking for GGZ library version: 0.0.14... yes
checking for GGZ library: ggzmod... yes (libraries /usr/lib, headers /usr/include)
checking for GGZ configuration tool: ggz-config... /usr/bin/ggz-config
checking for GGZ library: ggz-gtk... no
configure: WARNING: no
  The library 'ggz-gtk' does not seem to be installed correctly.
  Headers searched in: /usr/include /usr/local/include
  Libraries searched in: /usr/lib /usr/local/lib /usr/local/lib64 /usr/lib64
  Please read QuickStart.GGZ in order to fix this.

make[1]: ** [override_dh_auto_configure] Erro 1
make[1]: Saindo do diretório `/home/jqueiroz/Downloads/freeciv/freeciv-2.3.1'
make: ** [build] Erro 2
dpkg-buildpackage: erro: debian/rules build deu erro de saída estado 2

Seems that freeciv sources depends on "ggz-gtk-client" package, which isn't available since Ubuntu 11.10.

Is this a bug, or am I missing something?