Cannot pass GLRepeat to glTexParameteri without manually casting to cint before

[heysokam]

• What is the current behaviour?
  Failure to compile, when writing:

glTexParameteri(GLTexture2D, GLTextureWrapS, GLRepeat)  <------ GLRepeat is GLenum, not GLint

# From nimgl/opengl
GL_REPEAT* = 0x2901.GLenum
proc glTexParameteri*(target: GLenum, pname: GLenum, param: GLint): void {.stdcall, importc.}
glTexParameteri*: proc(target: GLenum, pname: GLenum, param: GLint): void {.stdcall.}

# Solved manually with:
glTexParameteri(GLTexture2D, GLTextureWrapS, GLRepeat.cint)

• Please provide the steps to reproduce and if possible a minimal demo of the problem
  As above

• What is the expected behaviour?
  Being able to pass GLRepeat to glTexParameteri, without having to manually cast it to cint

• Please tell us about your environment

  • NimGL Version: [ 1.3.2 ]
  • OS: [ Linux ]
  • Bindings: [ OpenGL ]
  • Backend: [ C ]
  • Nim Version: [ 1.7.1 ]
  • Compiler used: [ GCC ]

• Other information
  (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, docs.gl, documentation etc)
  Not sure what else is needed. I think the case is fairly clear with that code, but let me know if I'm missing something important.

[heysokam]

I just found that a similar case happens with this here

let format = GLrgb
glTexImage2D(GLTexture2D, 0, format.GLint,    # Notice this should be GLenum, but proc expects GLint
    tex.png.width.GLsizei, tex.png.height.GLsizei, 0, format, # But works correctly here
    GLUnsignedByte, tex.pix.addr)

proc glTexImage2D*(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, `type`: GLenum, pixels: pointer): void {.stdcall, importc.}
glTexImage2D*: proc(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, `type`: GLenum, pixels: pointer): void {.stdcall.}