The current version of CodeXL seems to depend on libstdc++ >= 4.0 and I can't find the latter one in OpenSUSE 12.3. Did someone install CodeXL successfully on OpenSUSE 12.3?
Officially CodeXL is supported on RedHL/CenOS and Ubuntu so those come with the proper libstdc. The libstdc is usually installed with gcc-44 or later and this is usually installed on those machines.
You can install gcc-44 with zypper command on openSUSE.