I have been trying to compile Inkscape on tiger ppc last night without success.
I have been following the steps described on: http://wiki.inkscape.org/wiki/index.php/CompilingMacOsX
When I tried to install al dependencies using
sudo port install cairo +pdf boehmgc gtkmm intltool libxslt lcms popt poppler boost gnome-vfsFreezes when appears: ---> Building dbus-glib with target all