Comment 18 for bug 648289

> I wonder if I missed specifying some default
> attributes when I started to request them explicitly.
Careful reading required:

{WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0};

The attribute list above, which is a duplication of the one from here:

   http://wiki.wxwidgets.org/WxGLCanvas#wxGLCanvas_sample

causes the patched pcbnew to abort in the exact same way.

Yet the wxGLCanvas_sample does run fine.

This tends to draw attention away from the attribute list towards the
technique used in the constructor.

Dick