message: Skip GL_DEPTH_CLAMP enum usages when in GL ES mode
  The GL_DEPTH_CLAMP is not valid in GL ES calls.
diff: @@ -1536,6 +1536,7 @@ struct RenderTextState
  enableBits[2] = gl.glIsEnabled(eGL_CULL_FACE) != 0;
  if(modern)
  {
  + if(!IsGLES)
  enableBits[3] = gl.glIsEnabled(eGL_DEPTH_CLAMP) != 0;
  if(HasExt[ARB_draw_buffers_blend])
  @@ -1654,11 +1655,14 @@ struct RenderTextState
  gl.glDisable(eGL_CULL_FACE);
  if(modern)
  + {
  + if(!IsGLES)
  {
  if(enableBits[3])
  gl.glEnable(eGL_DEPTH_CLAMP);
  else
  gl.glDisable(eGL_DEPTH_CLAMP);
  + }
  if(HasExt[ARB_draw_buffers_blend])
  {
  @@ -1887,6 +1891,7 @@ void WrappedOpenGL::RenderOverlayStr(float x, float y, const char *text)
  // set depth & stencil
  gl.glDisable(eGL_DEPTH_TEST);
  + if(!IsGLES)
  gl.glDisable(eGL_DEPTH_CLAMP);
  gl.glDisable(eGL_STENCIL_TEST);
  gl.glDisable(eGL_CULL_FACE);
  