Linking to typedefs, enums, enum values, and variables in namespaces does not work as expected. Consider this example:

--------------------------------------------
/// \file

/// namespace N
namespace N {

/// typedef T
typedef int T;

/// enum E
enum E {
     V = 0 //!< enum value V
};

/// global variable G
int G;

} // namespace N

/// typdef: #N::T, ::N::T, N::T
/// enum: #N::E, ::N::E, N::E
/// enum value: #N::V, ::N::V, N::V
/// global variable: #N::G, ::N::G, N::G
int main (int argc, char* argv[])
{
   return 0;
}
--------------------------------------------

I would prefer to use explicit links (# or :: prefix) to get warnings 
when these items get renamed. But that does not work:

1. The link tests with # and :: prefix do not generate any link. The 
third link test in each row (without # or :: prefix) does generate a 
link. I would expect that all of them (or at least the first two) 
generated a link.

2. The first test (# prefix) generates a warning which I do not 
understand since it works without prefix.

3. The second test (:: prefix) does not even generate a warning.

The problem is related to the namespace. Without namespaces everything 
works as expected. I also haven't noticed any such problems with 
classes, member functions, and (global) functions.