[Bug libstdc++/67309] Error compiling with -std=c++11 and -fsingle-precision-constant

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67309

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Are you site you were always using -std=c++11?

The algorithm header won't include the random header without that.