Double definition of GL_RGB in glad.h
I downloaded the archive using http://glad.dav1d.de/ with following configurations:
Language: C/C++
Specification: OpenGL
Profile: Core
API: gl(version 3.3)
When I tried to add a texture using  glTexImage2D() function it hadn't work than it's turned out that in glad.h exists two definition of GL_RGB with different values.
The function works fine with GL_RGB 0x1907 (line 908) and not works with GL_RG8 0x822B (line 1419).
My system: 
OS X Sierra 10.12.6
IDE: CLion