Re: bdw-gc includes in libguile.h

[Andy Wingo <wingo@pobox.com>]

Greets :)

On Mon 28 Mar 2011 21:22, ludo@gnu.org (Ludovic Courtès) writes:

> The problem is that libgc ends up being initialized behind our back upon
> the first libgc-redirected ‘pthread_create’ call.

Indeed.

> Hans Boehm suggested [0] two solutions:
>
>   1. Disable pthread redirects and instead register threads explicitly
>      (in ‘scm_with_guile’).
>
>   2. Initialize libgc in a constructor.
>
> I was leaning towards (2), because this way we’d be in control, and in
> particular we’d have GC_all_interior_pointers = 0.  It would only work
> on GCC/ELF platforms, and only if libgc wasn’t already initialized (for
> instance if Guile is used in an application that already uses libgc on
> its own)—but that really covers 90% of our use cases.
>
> I understand you’re in favor of (1).  This would give the same behavior
> as in 1.8[*] while being less hackish than (2).  However, it’s only
> applicable to 2.1.

Why is this only applicable to 2.1 ?

Regards,

Andy
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