[Bug libstdc++/61101] snprintf not part of std

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61101

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Maxime Boissonneault from comment #2)
> /* #undef _GLIBCXX_USE_C99 */

Something is wrong with your GCC build.

I've just installed it on CentOS 6.5 and it works fine.