I need to deploy a C++ application built on Ubuntu 12.10 with GCC 4.7\'s libstdc++ to systems running Ubuntu 10.04, which comes with a considerably older version of libstdc+
You might also need to make sure that you don't depend on the dynamic glibc. Run ldd on your resulting executable and note any dynamic dependencies (libc/libm/libpthread are usal suspects).
Additional exercise would be building a bunch of involved C++11 examples using this methodology and actually trying the resulting binaries on a real 10.04 system. In most cases, unless you do something weird with dynamic loading, you'll know right away whether the program works or it crashes.