Addressing __constant__ inside a namespace

How do I address a extern constant with cuModuleGetGlobal(), if the constant is declared inside a namespace?
Placing just constant name as a parameter does not work, apparently some prefix corresponding to namespace name is needed.
Anyone can advise?

Sure there is a workaround to take it out of the namespace… Still I want to know, how to prefix constant name in such situation.

Occasionally forgot “C” in extern “C” constant.
Case closed.