>
> The issue is that here we are shadowing with an alias a primitive C
> subr.
>
> Compiling speed 2 the assumption is that these are not redefined or
> advised (the manual warns about doing that).  Function calls to C
> primitives at speed 2 are hardcoded for performance reasons in the
> generated code.



 We have a customize listing exceptions for that
> `comp-never-optimize-functions'.
>


You should solve the issue adding `yes-or-no-p' to this customize and
> recompiling.
>

 Ah I see now. This makes sense, although also makes it harder to
configure.

On the other hand customizing `comp-never-optimize-functions' will solve
>
the issue only for external packages because you likely already have
> compiled the whole Emacs with the default setting...
>

IIUC I may need to modify the source code of the `comp.el` file, because it
gets used when doing `make`?

-- 
Best regards,
Andrey Orst