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Architectures with natdynlink support...
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Date: 2010-05-28 (21:06)
From: Stéphane Glondu <steph@g...>
Subject: Architectures with natdynlink support...

This is a follow-up on PR#5049 [1], but the bug has been closed and it
seems no longer possible to comment on it now (and reopening doesn't
seem relevant).

[1] http://caml.inria.fr/mantis/view.php?id=5049

Alain Frisch wrote:
> The list of platforms where natdynlink is supported is given in
> the configure script. Currently, the list is quite
> conservative, but it should be extended with feedback from
> users who can test natdynlink on other platforms:

Is there a practical test to be sure whether natdynlink works or not?
What kind of "feedback" do you expect?

>   case "$host" in
>     *-*-cygwin*) natdynlink=true;;
>     i[3456]86-*-linux*) natdynlink=true;;
>     x86_64-*-linux*) natdynlink=true;;
>   esac 

That seems overly restrictive. As far as Debian is concerned, Coq
dynamically loading ssreflect and compiling stuff works on all native
architectures [2] (as of OCaml 3.11.2), that means:

 - powerpc (powerpc64-unknown-linux-gnu)
 - sparc (sparc-unknown-linux-gnu)
 - kfreebsd-i386 (i686-unknown-kfreebsd*-gnu)
 - kfreebsd-amd64 (x86_64-unknown-kfreebsd*-gnu)
 - hurd-i386 (i386-unknown-gnu0.3)
 - amd64, i386 (linux kernel)

[2] https://buildd.debian.org/status/package.php?p=ssreflect

If I understand correctly Xavier's explanation in [1], it should work on
any x86-GNU-based system where shared libraries are supported (and not
only Linux!). Natdynlink working on sparc and powerpc seems to be a
surprise, but not the other ones AFAIU. Maybe people on this list can
also report working natdynlink on other systems.

Maybe adding a ./configure option would be more flexible?

Best regards,