Received: (at 74532) by debbugs.gnu.org; 17 Dec 2024 13:55:41 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Dec 17 08:55:41 2024 Received: from localhost ([127.0.0.1]:58154 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tNY33-0000tr-Dy for submit <at> debbugs.gnu.org; Tue, 17 Dec 2024 08:55:41 -0500 Received: from eggs.gnu.org ([209.51.188.92]:45288) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1tNY2y-0000tU-5r for 74532 <at> debbugs.gnu.org; Tue, 17 Dec 2024 08:55:39 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1tNY2r-0007fp-EX; Tue, 17 Dec 2024 08:55:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:Date:References:In-Reply-To:Subject:To: From; bh=L1SjFebVNuJpKjx3Qhwb8OKAHVrTyEAfNWXHexsHWb4=; b=FmC3AiVdSmBEcG/juDNG XPLUQ+3dgey1rynK3JspMzqz+OHbQsqFrqrNaP1cIDSBesfI3sXwXl/C77xXe4HrGryesBLZYDUtq 0HKAJUCI1t5pQvGW33+ycj2s3Do49y9/CwoZSceXuwYU9vzbpu2sA0f4dPHlkGONP/xwjCMSZlHqV WfuSC97JcHHWTnIWfAEixB6dFcS7lrHDAhpWBXdx/dtmqIL4oO8esOkcwwkovmeLguJK3dzC4ogF7 FDud8cyOgDLvxBRREnKNOBKcxX0zTFQfjitB8tq8xu56XNKUl/FM5ZYlQsvHyguPfas69QPKFh5cA WDEgOXb0nn/k9g==; From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Tomas Volf <~@wolfsden.cz> Subject: Re: bug#74532: with-extensions does not add native extensions to the load path In-Reply-To: <87o71flehy.fsf@HIDDEN> (Tomas Volf's message of "Fri, 13 Dec 2024 17:44:09 +0100") References: <871pyzdwzi.fsf@HIDDEN> <877c8n94kl.fsf@HIDDEN> <87plm93b7p.fsf@HIDDEN> <87y10x4g2w.fsf@HIDDEN> <87o71flehy.fsf@HIDDEN> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Septidi 27 Frimaire an 233 de la =?utf-8?Q?R=C3=A9vo?= =?utf-8?Q?lution=2C?= jour du =?utf-8?Q?Li=C3=A8ge?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Tue, 17 Dec 2024 14:55:06 +0100 Message-ID: <87bjxapg79.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 74532 Cc: Z572 <zhengjunjie@HIDDEN>, 74532 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi, Tomas Volf <~@wolfsden.cz> skribis: > Z572 <zhengjunjie@HIDDEN> writes: > >>> How it that usually done? I cannot do that *before* build, because then >>> tests would not run (the library is not yet installed into the absolute >>> path), and I cannot do it after, because I would need to rebuild the .go >>> files after patching the source code. >> >> you can use substitute* to adjust source. >> e.g. >> >> (or (false-if-exception (load-extension "/path/to/lib-some-object-file.s= o")) >> (load-extension "lib-some-object-file.so")) >> > > Thank you for the suggestion. I am not sure I like the > false-if-exception part, but temporary adjustment of the (@ (system > foreign-library) guile-extensions-path) should do the trick as well. I think you can just do: (load-extension "/path/to/lib-some-object-file.so") but you need to (1) do that in a post-install phase, and (2) re-run =E2=80=98make=E2=80=99 before =E2=80=98make install=E2=80=99 if necessary. See =E2=80=98guile-gdbm-ffi=E2=80=99 as one example. Ludo=E2=80=99.
bug-guix@HIDDEN:bug#74532; Package guix.
Full text available.Received: (at 74532) by debbugs.gnu.org; 13 Dec 2024 16:44:15 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Dec 13 11:44:15 2024 Received: from localhost ([127.0.0.1]:43938 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tM8lz-00082E-DE for submit <at> debbugs.gnu.org; Fri, 13 Dec 2024 11:44:15 -0500 Received: from wolfsden.cz ([37.205.8.62]:58122) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <~@wolfsden.cz>) id 1tM8lw-000824-4F for 74532 <at> debbugs.gnu.org; Fri, 13 Dec 2024 11:44:13 -0500 Received: by wolfsden.cz (Postfix, from userid 104) id 8A5D835EF6A; Fri, 13 Dec 2024 16:44:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=wolfsden.cz; s=mail; t=1734108250; bh=OBErH/hLvhSGeyN7JynmjULdZxJq96RU+4JD4leloJU=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=C7dVpe2OiO6VjQMvYjkUM+qWkA/+Pw6wXUHvXaqflCHl8ZA6IdcdaAe12qQ6X/czD WLzSXhSZgXCXBhdNvBujUMSQGdqyJQSjKmzXmqavUJvP4Oo5utEFVkNKmPS/QUtyVA uL1+sMEVY27z4ecxnHKJqzFVgbtyVTHsmj3wJo9NoWN2ZDfKY6B7jdWhGuJxA9hILT HBDR7suqJYrwxbhTlnN+Ut4Uz8m3LR05w10PZSoazujRJlcttn6vURadziXt+1Kl/X X/0oA6bBP4XUPFV+DCXp8uCRz3eqnk7do4t9R7LRZ0iTQwKo5oME/FBR9gqqW2iz9v 9hYtTrTIXcM+TWbB0kH/Kv0lg7isGMWixFvlwJjzI1e0e/i69YkZ6qrIwLjHghj5Nc auwfZgViVgQb/DR+d6UzyvpWKDa0c9G27nXTvVd3e8fyQYh1VyMOu6WYIhn2eph91P voh6vpdNG+heEFfrsW5A7+FuQHi+hp2nncBl4Fwg5VTUe0X2WoApTgatkdi7ipNGtq M9UN7KIgTOs6H3NA+9ZEcoQufma/ziAPW4uuszOkGm50ebdyxVGeLfYPflcCqZ+aFH 4aCOpbCPrihFCtEGIFJ06nI0eXpFPdXEzxa7IudBIuBpdw/5/V1/VtGcl7b1w0b44a U3MBzWqDfAQjuqAjcx2Lq/s0= X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on wolfsden X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from localhost (unknown [128.0.188.242]) by wolfsden.cz (Postfix) with ESMTPSA id B31F236058F; Fri, 13 Dec 2024 16:44:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=wolfsden.cz; s=mail; t=1734108249; bh=OBErH/hLvhSGeyN7JynmjULdZxJq96RU+4JD4leloJU=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=GoBRCEC1Kxr1hNRjVabqBzoLTH0/V3mar94Xw27kxax98+J/ox1JKGvCrE+RC3xmV zicA4VajMuhd4j+thGK33MeBkmbEIvpoIzR1XGJedutyV5a1/fbElFoOcqwFf66EU9 MshMbhHsl0dm4tKaA0lzHFFli2cAQ6KnU8Xs0tgPXcPaVGpGE6TUDBTO/DQnWyU5wg FwUCWXKvppym+raGLQuZvmuNuh+L1F+KlLil4y80GFgpyFth04V6nUAQIiaPsyE87w VeGcu8kpvI8ZNdiso+oI3CqozbkQFwRc3KIOkKNkONwYRqX1l0vJGUdYI6luyzLMKx xpcofWDDCdYXu0RPFjqNl/zPWhdVDxY31bh2AJuZ9FJ4vJURQnNVe3TcRErCOA0qz5 D6m1BMX7JNhHLJt0idVNOJHk6dMJxoLNiJ+I77bxG3cQXTW/HEcPPl2BzhCVLiqCC8 gTYzMQDU4sJ5N4IdIvFBiGp1O+x+6sNlzNM3C7tPTJYzxBoXodCH9h/jfyF75uci0v 80Rygh39W5hp4t7FWzQRkpfB4crsfj93niGbgdJONjrEFc8ARuOf7G/sNMwSEImrVk IeeoEeFKTIBVmthR9AW1YEQmrKLvtHLGdMYB7p5l19pLW7ZDntoL2ILAi+oOkkCwX7 UlLP6IBXJ6OFzQiIGCnVoxoE= From: Tomas Volf <~@wolfsden.cz> To: Z572 <zhengjunjie@HIDDEN> Subject: Re: bug#74532: with-extensions does not add native extensions to the load path In-Reply-To: <87y10x4g2w.fsf@HIDDEN> (zhengjunjie@HIDDEN's message of "Tue, 03 Dec 2024 11:10:15 +0800") References: <871pyzdwzi.fsf@HIDDEN> <877c8n94kl.fsf@HIDDEN> <87plm93b7p.fsf@HIDDEN> <87y10x4g2w.fsf@HIDDEN> Date: Fri, 13 Dec 2024 17:44:09 +0100 Message-ID: <87o71flehy.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 74532 Cc: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>, 74532 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hello, Z572 <zhengjunjie@HIDDEN> writes: >> How it that usually done? I cannot do that *before* build, because then >> tests would not run (the library is not yet installed into the absolute >> path), and I cannot do it after, because I would need to rebuild the .go >> files after patching the source code. > > you can use substitute* to adjust source. > e.g. > > (or (false-if-exception (load-extension "/path/to/lib-some-object-file.so= ")) > (load-extension "lib-some-object-file.so")) > Thank you for the suggestion. I am not sure I like the false-if-exception part, but temporary adjustment of the (@ (system foreign-library) guile-extensions-path) should do the trick as well. One thing I am curious about, I can see you have put the load from absolute path as the first alternative. But if it fails, it still falls back to lookup based on the guile-extensions-path. I wonder whether putting it at the end of the list would not be better, that way you could still replace the library in the spirit of LD_PRELOAD by setting the appropriate environment variable. And if reproducibility is the priority, then even the `or' might not make sense. Any thoughts on that? Thanks, Tomas =2D-=20 There are only two hard things in Computer Science: cache invalidation, naming things and off-by-one errors. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJCBAEBCgAsFiEEt4NJs4wUfTYpiGikL7/ufbZ/wakFAmdcZFkOHH5Ad29sZnNk ZW4uY3oACgkQL7/ufbZ/wakTlg/9FoMOQ/oOx1tN0mrl3wwcTbbZh5MRX9XF5+v0 En5BCvWWuysmkC9nxS2YhS9GlEXV4qEc5pkfL8QbvcvcL2PYsxB/uIY5q+dJXVDl 5f+Be6e71ptlEz6Hk9/IWpPgj9/t+EixFfA4Q/XIsoxsy4b9KGrIlDJDQiX2R+h+ YM90uymr9gXj9lDZsn8J4gFEaQaVxLr6V7mCIRGVL2oobEVOPGnKwswAVarfhx6a AdPGU3VCRezbn3D6NtFi2hrUXSfwpPNQ86VltBu6yS+2rBaYwI6f/fExJV+IZoDu rekFf80wU9BEMwNJCNJPy5FvkAbqTNRRQ8ox9LnuDhlPTvFvYp9wjV7YVUqT1+1p go/YUUyGu9Pko2WbW0oe0WbhEqWkFhMW39GteJ0P7C22KT9m/IY7E2kEp0+0rJ6B bi1rZ862bvVQ0VQ8bIuVksCd5ZV5CsAnND4Y0gCv3QW/Uw2P7OjpG5g+puHOmwCH tkuxB4kV+Qrpr+mY1sL6EQZqDWsdHzN0B1VKTI3MdGYnvUCoHibJcoYIhVe0aiWi nIX+cyACJ8qNgluB9VM+9TqCLvnDuyJ0Lall+VZrfrybXoXAAlt+Snylm4iBPvb9 KrE7vzLEIGEMz3hvX3m/nG+qNI6vcdOL7MrE+JnWpwjMCwmMrxzeTsbshcbl3DmU L4q8mgc= =Jjva -----END PGP SIGNATURE----- --=-=-=--
bug-guix@HIDDEN:bug#74532; Package guix.
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From: Z572 <zhengjunjie@HIDDEN>
To: Tomas Volf <~@wolfsden.cz>
Subject: Re: bug#74532: with-extensions does not add native extensions to
the load path
In-Reply-To: <87plm93b7p.fsf@HIDDEN> (Tomas Volf's message of "Tue, 03
Dec 2024 00:40:42 +0100")
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Tomas Volf <~@wolfsden.cz> writes:
> Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
>
>> Hi,
>>
>> Tomas Volf <~@wolfsden.cz> skribis:
>>
>>> The documentation for `with-extensions' says:
>>>
>>>> In the same vein, sometimes you want to import not just pure-Scheme
>>>> modules, but also =E2=80=9Cextensions=E2=80=9D such as Guile bindings =
to C libraries
>>>> or other =E2=80=9Cfull-blown=E2=80=9D packages.
>>
>> It=E2=80=99s not just bindings but also pure Scheme libraries like Guile=
-JSON.
>
> True, and for those it works well. However the text documentation
> explicitly mentions "bindings to C libraries" as one of the use
> cases. :)
>
>>
>>> However it does not actually add those C libraries into
>>> (guile-extensions-path), which means that trying to actually use a
>>> library imported this way will lead to an error.
>>
>> [...]
>>
>>> 190:25 1 (load-foreign-library _ #:extensions _ #:search-ltdl-libra=
ry-path? _ # _ # _ # =E2=80=A6)
>>> In unknown file:
>>> 0 (dlopen "libguile-yamlpp.so" 1)
>>>
>>> ERROR: In procedure dlopen:
>>> In procedure dlopen: file "libguile-yamlpp.so", message "libguile-yamlp=
p.so: cannot open shared object file: No such file or directory"
>>
>> Usually, packages like these (guile-gnutls, guile-git, guile-ssh, etc.)
>> have their .so absolute file name hard-coded, which sidesteps this
>> problem entirely. I recommend doing that for guile-yamlpp as well.
>
> How it that usually done? I cannot do that *before* build, because then
> tests would not run (the library is not yet installed into the absolute
> path), and I cannot do it after, because I would need to rebuild the .go
> files after patching the source code.
you can use substitute* to adjust source.
e.g.
(or (false-if-exception (load-extension "/path/to/lib-some-object-file.so"))
(load-extension "lib-some-object-file.so"))
>
> Assuming I have a guile library that creates a new .so library during
> the build, and the .so library must be loadable by the other modules in
> the library during the build (and for the tests), how should I approach
> that?
>
> I am pretty sure I cannot just patch the source code, since the library
> would not be installed into the absolute path yet during the build.
>
> Honestly, setting GUILE_EXTENSIONS_PATH via pre-inst-env seemed like
> fairly elegant solution.
>
>>
>> That said, it would probably make sense to arrange for =E2=80=98with-ext=
ensions=E2=80=99
>> to set GUILE_EXTENSIONS_PATH.
>
> That would be great. My current work-around is
>
> (with-extensions (list guile-wolfsden)
> (program-file
> "audio-cycle-sinks"
> #~(begin
> ;; Bug 74532: Native extensions are not added to the load path.
> (eval-when (expand load eval)
> (let ((ext-path (@ (system foreign-library) guile-extensions-p=
ath)))
> ;; Just a temporary hack, we can live with duplicates in the=
path.
> (ext-path (cons #$(file-append guile-wolfsden
> "/lib/guile/3.0/extensions")
> (ext-path)))))
> ...)))
>
> which is anything but elegant.
>
>>
>> Ludo=E2=80=99.
>>
>> PS: Your MUA sets =E2=80=9CMail-Followup-To: bug-guix@HIDDEN=E2=80=9D, =
which is kinda
>> annoying because that=E2=80=99s the wrong address when replying to a=
bug.
>> :-)
>
> Thanks for letting me know, I was not aware of that. After reading
> (message)Mailing Lists bit more carefully, adjusting the Posting Styles
> and sending a bug fix to the Emacs' bug tracker, I believe it should not
> happen anymore. Sorry for the annoyance.
--=-=-=
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From: Tomas Volf <~@wolfsden.cz>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: bug#74532: with-extensions does not add native extensions to
the load path
In-Reply-To: <877c8n94kl.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
=?utf-8?Q?s?= message of "Thu, 28 Nov 2024 08:54:02 +0100")
References: <871pyzdwzi.fsf@HIDDEN> <877c8n94kl.fsf@HIDDEN>
Date: Tue, 03 Dec 2024 00:40:42 +0100
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--=-=-=
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Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
> Hi,
>
> Tomas Volf <~@wolfsden.cz> skribis:
>
>> The documentation for `with-extensions' says:
>>
>>> In the same vein, sometimes you want to import not just pure-Scheme
>>> modules, but also =E2=80=9Cextensions=E2=80=9D such as Guile bindings t=
o C libraries
>>> or other =E2=80=9Cfull-blown=E2=80=9D packages.
>
> It=E2=80=99s not just bindings but also pure Scheme libraries like Guile-=
JSON.
True, and for those it works well. However the text documentation
explicitly mentions "bindings to C libraries" as one of the use
cases. :)
>
>> However it does not actually add those C libraries into
>> (guile-extensions-path), which means that trying to actually use a
>> library imported this way will lead to an error.
>
> [...]
>
>> 190:25 1 (load-foreign-library _ #:extensions _ #:search-ltdl-librar=
y-path? _ # _ # _ # =E2=80=A6)
>> In unknown file:
>> 0 (dlopen "libguile-yamlpp.so" 1)
>>
>> ERROR: In procedure dlopen:
>> In procedure dlopen: file "libguile-yamlpp.so", message "libguile-yamlpp=
.so: cannot open shared object file: No such file or directory"
>
> Usually, packages like these (guile-gnutls, guile-git, guile-ssh, etc.)
> have their .so absolute file name hard-coded, which sidesteps this
> problem entirely. I recommend doing that for guile-yamlpp as well.
How it that usually done? I cannot do that *before* build, because then
tests would not run (the library is not yet installed into the absolute
path), and I cannot do it after, because I would need to rebuild the .go
files after patching the source code.
Assuming I have a guile library that creates a new .so library during
the build, and the .so library must be loadable by the other modules in
the library during the build (and for the tests), how should I approach
that?
I am pretty sure I cannot just patch the source code, since the library
would not be installed into the absolute path yet during the build.
Honestly, setting GUILE_EXTENSIONS_PATH via pre-inst-env seemed like
fairly elegant solution.
>
> That said, it would probably make sense to arrange for =E2=80=98with-exte=
nsions=E2=80=99
> to set GUILE_EXTENSIONS_PATH.
That would be great. My current work-around is
(with-extensions (list guile-wolfsden)
(program-file
"audio-cycle-sinks"
#~(begin
;; Bug 74532: Native extensions are not added to the load path.
(eval-when (expand load eval)
(let ((ext-path (@ (system foreign-library) guile-extensions-pat=
h)))
;; Just a temporary hack, we can live with duplicates in the p=
ath.
(ext-path (cons #$(file-append guile-wolfsden
"/lib/guile/3.0/extensions")
(ext-path)))))
...)))
which is anything but elegant.
>
> Ludo=E2=80=99.
>
> PS: Your MUA sets =E2=80=9CMail-Followup-To: bug-guix@HIDDEN=E2=80=9D, w=
hich is kinda
> annoying because that=E2=80=99s the wrong address when replying to a =
bug.
> :-)
Thanks for letting me know, I was not aware of that. After reading
(message)Mailing Lists bit more carefully, adjusting the Posting Styles
and sending a bug fix to the Emacs' bug tracker, I believe it should not
happen anymore. Sorry for the annoyance.
=2D-=20
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.
--=-=-=
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: 74532 <at> debbugs.gnu.org
Subject: Re: bug#74532: with-extensions does not add native extensions to
the load path
In-Reply-To: <871pyzdwzi.fsf@HIDDEN> (Tomas Volf's message of "Mon, 25
Nov 2024 18:49:53 +0100")
References: <871pyzdwzi.fsf@HIDDEN>
Date: Thu, 28 Nov 2024 08:54:02 +0100
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Hi,
Tomas Volf <~@wolfsden.cz> skribis:
> The documentation for `with-extensions' says:
>
>> In the same vein, sometimes you want to import not just pure-Scheme
>> modules, but also =E2=80=9Cextensions=E2=80=9D such as Guile bindings to=
C libraries
>> or other =E2=80=9Cfull-blown=E2=80=9D packages.
It=E2=80=99s not just bindings but also pure Scheme libraries like Guile-JS=
ON.
> However it does not actually add those C libraries into
> (guile-extensions-path), which means that trying to actually use a
> library imported this way will lead to an error.
[...]
> 190:25 1 (load-foreign-library _ #:extensions _ #:search-ltdl-library=
-path? _ # _ # _ # =E2=80=A6)
> In unknown file:
> 0 (dlopen "libguile-yamlpp.so" 1)
>
> ERROR: In procedure dlopen:
> In procedure dlopen: file "libguile-yamlpp.so", message "libguile-yamlpp.=
so: cannot open shared object file: No such file or directory"
Usually, packages like these (guile-gnutls, guile-git, guile-ssh, etc.)
have their .so absolute file name hard-coded, which sidesteps this
problem entirely. I recommend doing that for guile-yamlpp as well.
That said, it would probably make sense to arrange for =E2=80=98with-extens=
ions=E2=80=99
to set GUILE_EXTENSIONS_PATH.
Ludo=E2=80=99.
PS: Your MUA sets =E2=80=9CMail-Followup-To: bug-guix@HIDDEN=E2=80=9D, whi=
ch is kinda
annoying because that=E2=80=99s the wrong address when replying to a bu=
g.
:-)
bug-guix@HIDDEN:bug#74532; Package guix.
Full text available.
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From: Tomas Volf <~@wolfsden.cz>
To: bug-guix@HIDDEN
Subject: with-extensions does not add native extensions to the load path
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Date: Mon, 25 Nov 2024 18:49:53 +0100
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
The documentation for `with-extensions' says:
> In the same vein, sometimes you want to import not just pure-Scheme
> modules, but also =E2=80=9Cextensions=E2=80=9D such as Guile bindings to =
C libraries
> or other =E2=80=9Cfull-blown=E2=80=9D packages.
However it does not actually add those C libraries into
(guile-extensions-path), which means that trying to actually use a
library imported this way will lead to an error.
I guess `load-path-expression' in (guix gexp) needs to also append to
the `guile-extensions-path' based on the search-paths of the imported
packages?
Reproduction is simple. Make sure you *do not* have guile-yamlpp
installed in your profile. Then build the `test' into a store item.
=2D-8<---------------cut here---------------start------------->8---
(use-modules (gnu packages guile-xyz))
(define test
(with-extensions (list guile-yamlpp)
(program-file "test" #~(use-modules (yamlpp)))))
=2D-8<---------------cut here---------------end--------------->8---
And try to run it:
=2D-8<---------------cut here---------------start------------->8---
$ /gnu/store/nq0sahcnph5sxms4irq4inv2hq2hfbzr-test
Backtrace:
19 (primitive-load "/gnu/store/nq0sahcnph5sxms4irq4inv2hq2hfbzr-t=
est")
In ice-9/eval.scm:
721:20 18 (primitive-eval _)
In ice-9/psyntax.scm:
1229:36 17 (expand-top-sequence _ _ _ #f _ _ _)
1221:19 16 (parse _ (("placeholder" placeholder)) ((top) #(ribcage () () =
())) _ e (eval) #)
259:10 15 (parse _ (("placeholder" placeholder)) (()) _ c&e (eval) (hygi=
ene guile-user))
In ice-9/boot-9.scm:
3935:20 14 (process-use-modules _)
222:17 13 (map1 (((yamlpp))))
3936:31 12 (_ ((yamlpp)))
3327:17 11 (resolve-interface (yamlpp) #:select _ #:hide _ #:prefix _ #:r=
enamer _ # _)
In ice-9/threads.scm:
390:8 10 (_ _)
In ice-9/boot-9.scm:
3253:13 9 (_)
In ice-9/threads.scm:
390:8 8 (_ _)
In ice-9/boot-9.scm:
3544:20 7 (_)
2836:4 6 (save-module-excursion _)
3564:26 5 (_)
In unknown file:
4 (primitive-load-path "yamlpp" #<procedure 7f405e4fd560 at ice-=
9/boot-9.scm:35=E2=80=A6>)
In yamlpp.scm:
65:1 3 (_)
In unknown file:
2 (load-extension "libguile-yamlpp" "init")
In system/foreign-library.scm:
190:25 1 (load-foreign-library _ #:extensions _ #:search-ltdl-library-p=
ath? _ # _ # _ # =E2=80=A6)
In unknown file:
0 (dlopen "libguile-yamlpp.so" 1)
ERROR: In procedure dlopen:
In procedure dlopen: file "libguile-yamlpp.so", message "libguile-yamlpp.so=
: cannot open shared object file: No such file or directory"
=2D-8<---------------cut here---------------end--------------->8---
Have a nice day,
Tomas
=2D-=20
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.
--=-=-=
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--=-=-=--
Tomas Volf <~@wolfsden.cz>:bug-guix@HIDDEN.
Full text available.bug-guix@HIDDEN:bug#74532; Package guix.
Full text available.
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