I notified the rpm package builder about this problem again. I cannot do anything else about it.
Thank you very much.
I understand the difficulties in dealing with different distributions and different package managers.
I'll try to add information on the tracker as I try more distributions / package managers.
I've tested my favorite distros (basically, ones relying on Gnome and RPM) in order to build more a modern development/test environment, with no luck.
I'll now test clones of older virtual machines I've used for previous builts, but I would prefer to be able to set up a machine with a current mainstream distribution (more meaningful to give support to end users, as uses more recent sets of libraries).
Last, I'll try to switch to a .DEB based distribution as development machine if nothing else works.
In case I'm really out of luck I'll fall back on the only working machine, with 0.9.31, I've obtained in those weeks, but as said I don't like the users not being able to obtain the very same version of the development environment I use (not being able to replicate any problem the end user may met compiling the sources) because being it a snapshot it is no longer distributed by the developer.
Plus, I saw on 0.9.31 (or maybe was just a problem of that snapshot) it changed the way to support alternative widgetsets, and I was not able to set up Qt (while I need to compile for Qt too), so this option would really be a pain for me. Moreover being the snapshot gone some weeks ago, I cannot longer rely on community to analyze the problem with Qt.