bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree

[Eli Zaretskii]

> From: Andrea Corallo <akrl@sdf.org>
> Cc: 46256@debbugs.gnu.org, andrewjmoreton@gmail.com
> Date: Fri, 05 Mar 2021 22:25:17 +0000
> 
> > One more question: does our code arrange for libgccjit to free
> > heap-allocated buffers that Emacs allocates, or vice versa (libgccjit
> > allocates memory that Emacs then frees)?
> 
> No, in libgccjit we always copy the input buffers as soon as they are
> passed, and only these copies are used and handled inside libgccjit
> afterwards.
> 
> > And do we arrange for any
> > callbacks from libgccjit, i.e. does libgccjit call functions
> > implemented in Emacs?
> 
> No, libgccjit does not offer callbacks at its interface, all is simply
> syncronous.

Thanks, those 2 were places where potential bugs, in particular
Windows-specific ones, could hide.