[PATCH 1/3] support: Implement 'xfmemopen' for seamless 'fmemopen' use

[Maciej W. Rozycki]

On Mon, 25 Aug 2025, Florian Weimer wrote:

> > Add 'xfmemopen' wrapper for seamless 'fmemopen' use in tests, following 
> > 'xfopen', 'xfclose', etc., and providing a standardized error reporting 
> > facility.
> > ---
> 
> Okay.

 Applied now, thanks for your review.

  Maciej