On Fri, Mar 5, 2021 at 2:56 PM Eli Zaretskii <eliz@gnu.org> wrote:
> > From: Pip Cet <pipcet@gmail.com>
> > Date: Fri, 5 Mar 2021 14:02:33 +0000
> > Cc: Daniel Colascione <dancol@dancol.org>, eggert@cs.ucla.edu, 46881@debbugs.gnu.org
> >
> > However, there's open_memstream
>
> That's glibc-only, AFAIK.  Not portable enough for us.

POSIX.1-2008. Not portable enough to require, certainly, but portable
enough to use?

Pip