On 12/23/2014 09:15 AM, Stefan Monnier wrote:
> Could you split this patch into at least two parts:
> - auto-generate the symbols from make-docfile.
> - make Qnil be zero.
> The other part (make those Q<foo> be link-time constants) could be
> a third patch or folded into one of the other two.
>

Sure.  It's easy to create one patch for autogeneration and link-time 
constants, and a second patch for making Qnil be zero. Attached.  These 
are relative to trunk commit e55a467ec0f758c311d358ceb7d66a8a7d9482c3 
dated today.