Well It's proved non-trivial to fix, and the problem is just very frustrating. The version in the repository is the same as in the other package. Source builds without errors both in the sdk and the extras autobuilder, but the one compiled with the autobuilder version segfaults.

If you feel you could help you can apt-get source wesnoth and build it in your sdk. The latest extras logs can be found here: https://garage.maemo.org/builder/fre..._1.6.5-maemo7/
And strace tail here: http://pastebin.com/MhrwrxL3

I work on this every now and then when I have the time, but it's slow going.