[Doxygen-users] Ignoring namespaces used for forward declarations

[Robert D. <rcd...@gm...>]

In my code I have a couple of forward declarations of classes in other
distant, unrelated namespaces:

namespace foo
{
    class bar;
}

These get parsed out by Doxygen (v1.8.6) and appear empty in the HTML
output. Is there a way that Doxygen can be "smart" enough to ignore a
namespace if there isn't anything tangible inside of it? It would have
to know to ignore them if they are empty or only contain forward
declarations.

Thanks.