Re: Supported platforms

[Eli Zaretskii <eliz@gnu.org>]

> Cc: emacs-devel@gnu.org
> From: Daniele Nicolodi <daniele@grinta.net>
> Date: Mon, 17 Jun 2019 12:20:56 -0600
> 
> On 15-06-2019 00:42, Eli Zaretskii wrote:
> >> From: Daniele Nicolodi <daniele@grinta.net>
> >> Date: Fri, 14 Jun 2019 14:42:32 -0600
> >>
> >> is there anywhere a list of the platforms (operating system and
> >> architecture) supported by Emacs?
> > 
> > I don't think there are innate limitations.  Any platform that
> > supports running a Posix shell, GNU Make, a C99-compliant C compiler,
> > and a standard C library, will do.
> 
> Where are you drawing the line to call those the only required
> dependencies?  For example, Emacs uses autoconf for the build process,
> thus I guess independently of the fact that autoconf support exists for
> the given platform, also an m4 implementation is required.

Not AFAIK, not for building a release tarball.  For that, you only
need a Posix-compatible shell, capable of running a configure script.

So I think what I mentioned are indeed the only required dependencies.
You will need more only if you want to build from Git.

> Also, what standard C library?

A C99-compliant library will do, although we don't even assume that
100%.

> > Is there some specific question that you are interested in, or a
> > specific platform?  And also, what version of Emacs are we talking
> > about?  Versions before 27 could have problems in the dumping process.
> 
> It is a question mostly out of curiosity. But there have been talks
> recently of working on improvements to the build process, and I am
> trying to understand what systems Emacs is targeting, what systems the
> build process needs to support, and on which systems Emacs is tested.

Well, is your curiosity satisfied?