Well it is not a BMPx bug (i've closed it on our bugtracker as 'not fixable') seems like dholbach has taken notice of it so we'll have to wait until it gets fixed in glibmm upstream. (Might be some kind of linker/compiler issue still, though) -- libglibmm-2.4-dev seems to be buggy on ppc https://launchpad.net/bugs/70821