(In reply to comment #2)
> Sounds like a bug in the application to me. From the GLX 1.4 spec (though
> that's certainly not new in 1.4):
> 
> "A non-NULL return value for glXGetProcAddress does not guarantee that an
> extension function is actually supported at runtime. The client must also 
> query
> glGetString() or glXQueryExtensionsString to determine if an extension is
> supported by a particular context."

I'm not sure what behaviour is correct. I relied on the the description
of glXGetProcAddress:
http://www.opengl.org/sdk/docs/man/xhtml/glXGetProcAddress.xml

"A NULL pointer is returned if function requested is not suported in the
implementation being queried."

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https://bugs.launchpad.net/bugs/905456

Title:
  needs to be built with --disable-asm for super meat boy to work

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