By the way, while looking for glibc, libstdc++ and kernel combination bugs, I found interesting info - Maemo's default gcc's (4.2.1) libstdc++ (6.0.9) which is present on N900s has one known binary incomatibility with all older and newer versions - see [2] and relevant gcc bug report [3]. It's marked as fixed - I wonder if "our" 6.0.9 and gcc have this fix included by some patch or all "our" binaries are abi-incompatible with all other gcc/libstdc++ version That would make me a sad panda. [1] http://stackoverflow.com/questions/6...active#tab-top [2] http://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html search for "GCC 4.2.1: libstdc++.so.6.0.9" and read further note [3] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33678 [4] https://sourceware.org/ml/libc-annou.../msg00001.html [5] https://sourceware.org/ml/libc-alpha.../msg00160.html