<GL/gl.h> carefully avoids defining GL_VERSION_1_2 and
GL_VERSION_1_3 because openg32.dll doesn't have those
entry points, and it then includes <GL/glext.h> which
defines them. Not sure what the right fix is, I just
moved the #define inside the #ifdef
GL_GLEXT_PROTOTYPES. This is with mingw-2.0.
I'd also like to see Wglext.h distributed with MinGW.
I've attached a copy. It should be installed a
<GL/Wglext.h>. Thanks, Greg