GNU bug report logs - #63331
Guile-GnuTLS/Git circular dependency

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Christopher Baines <mail <at> cbaines.net>
Cc: Simon Josefsson <simon <at> josefsson.org>, Vivien Kraus <vivien <at> planete-kraus.eu>, 63331 <at> debbugs.gnu.org
Subject: bug#63331: Guile-GnuTLS/Git circular dependency
Date: Wed, 10 May 2023 17:37:22 +0200

Hi,

Christopher Baines <mail <at> cbaines.net> skribis:

> It seems to build for me, but I'm having problems cross building. There
> were warnings before about protocol/ssl3 being undefined, but now this
> seems to result in an error when building extra.scm:
>
>
>   GUILEC   modules/gnutls.go
> gnutls.scm:608:23: warning: possibly unbound variable `protocol/ssl3'
> gnutls.scm:609:25: warning: possibly unbound variable `protocol/tls1-0'
> gnutls.scm:610:25: warning: possibly unbound variable `protocol/tls1-1'
>   GUILEC   modules/gnutls/extra.go

[...]

> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> Unbound variable: protocol/ssl3
> make[3]: *** [Makefile:1295: modules/gnutls/extra.go] Error 1

Is it a regression or did we already have that problem?

That comes from this bit in (gnutls):

  ;; Renaming.
  (define protocol/ssl-3 protocol/ssl3)
  (define protocol/tls-1.0 protocol/tls1-0)
  (define protocol/tls-1.1 protocol/tls1-1)

When cross-compiling, the .so cannot be loaded (understandably; see also
GNUTLS_GUILE_CROSS_COMPILING) so ‘protocol/ssl3’ above is undefined.
The problem is that when compiling (gnutls extra), we end up loading
(gnutls) and thus evaluating the lines above, which fail.

In Guile-Avahi I worked around it like so:

  (define protocol/unspecified
    (and (defined? 'protocol/unspec) protocol/unspec))

I guess we could do that as well here.

HTH,
Ludo’.

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