Question/Problem with gl::GLenum and #defines from gl.h

Hello,
I'm new to globjects and glbindings and it's an awesome library.
I have a question according to the examples and the general use of globjects with glfw.
There has to be a certain order of including the need header files as I can see in all examples.

Taken from texture example.
#include

#include
#include
#include
#include

#include

#include
#include
#include
#include

#include "ScreenAlignedQuad.h"

using namespace gl;

For example this piece of code won't compile, because GL_TEXTURE_2D is ambigious.
It's wether the GL_TEXTURE_2D somewhere defined in gl.h or it's the enum from globjects -> gl::GLenum::GL_TEXTURE_2D

globjects::Texture::createDefault(GL_TEXTURE_2D)

Even if I remove the using namespace globjects, this line won't compile.
I have to explicitly cast

globjects::Texture::createDefault((gl::GLenum)GL_TEXTURE_2D);

And how can I use the following with wglGetProcAddress instead of glfwGetProcAddress ?

This doesnt work. The compiler complains about invalid or incompatible types.
globjects::init([](const char* name)
{
return wglGetProcAddress(name);
});

Kind regards,
PonchoBob