On May 20, 2016, at 8:17 AM, Jarosław Bober <jaroslaw.bober at gmail.com> wrote: > > ldd gives me: > ldd a.out > linux-vdso.so.1 => (0x00007fff6e5ff000) > libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00000039d8400000) In that case, I don’t see how you can be making use of any C++11/14 features that aren’t implemented by the compiler itself (e.g. type inference via “auto”) or purely in template form. Any feature that uses the compiled Standard C++ Library can’t be using the new library. That may be useful for your purposes.