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bug#27152: deprecation warnings with Guile 2.2.2

From: Mark H Weaver
Subject: bug#27152: deprecation warnings with Guile 2.2.2
Date: Fri, 02 Jun 2017 21:20:03 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Maxim Cournoyer <address@hidden> writes:

> On Wed, May 31, 2017 at 2:00 PM, Ludovic Courtès <address@hidden> wrote:
>  Ricardo Wurmus <address@hidden> skribis:
>  > I get a couple of deprecation warnings with Guile 2.2.2, for example
>  >
>  > Import (ice-9 threads) to have access to `current-processor-count'.
>  > `_IOFBF' is deprecated. Use the symbol 'block instead.
>  We can fix the first one with #:use-module (ice-9 threads).
>  The second one is just a pain: in 2.2 one is supposed to write
>  (setvbuf port 'block)
>  instead of
>  (setvbuf port _IOFBF)
>  So we could do:
>  (cond-expand (guile-2.2 (define _IOFBF 'block))
>  (else #t))
>  in some central place (that doesn’t exist), but really, that’s annoying.
>  So I’m tempted to do nothing.
>  Note that normally users do not see these deprecation warnings at all.
>  Thoughts?
> Why not let good old sed have a run at it? Seems like a simple find and 
> replace operation, and 'block looks nicer than _IOFBF to my eyes.

If we did that, then Guix would stop working with guile-2.0.  Given that
guile-2.2 is not yet available from many popular distros, I think it
would be unwise to drop guile-2.0 at this time.


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