GNU bug report logs - #28345
25.2.1: package-install-file and dynamic modules

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Peking Duck <pekingducklabs <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2.1: package-install-file and dynamic modules
Date: Mon, 4 Sep 2017 20:26:43 +0800

[Message part 1 (text/plain, inline)]

Hi,

I wrote a dynamic module and am trying to use package.el to install it. I
followed the instructions in the Emacs Lisp Manual and created a tar
archive. This tar archive contains:

sqlite3-api-0.1/
sqlite3-api-0.1/sqlite3-api-pkg.el
sqlite3-api-0.1/sqlite3-api.so

I then evaluated

(package-install-file "~/src/emacs-sqlite3-api/sqlite3-api-0.1.tar")

and it gave me an error:

(error "sqlite3-api.so:0:0: error: scan-error: (Containing expression ends
prematurely 47501 47502)\
")

From the backtrace, it's  autoload-generate-file-autoloads in autoload.el
that caused it. Seems to me Emacs was trying to parse the .so looking for
autoloads?

It's on Linux (CentOS7). Interestingly I tried this on macOS later and this
time it worked perfectly.

Is package.el ready for dynamic modules yet?

One more thing related to dynamic modules: seems to me unload-feature
doesn't support dynamic modules yet. Will this be fixed?

Thanks

[Message part 2 (text/html, inline)]

Message #8 received at 28345 <at> debbugs.gnu.org (full text, mbox):

From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: Peking Duck <pekingducklabs <at> gmail.com>, 28345 <at> debbugs.gnu.org
Subject: Re: bug#28345: 25.2.1: package-install-file and dynamic modules
Date: Sun, 24 Sep 2017 11:08:16 +0000

[Message part 1 (text/plain, inline)]

Peking Duck <pekingducklabs <at> gmail.com> schrieb am Mo., 4. Sep. 2017 um
17:15 Uhr:

>
> One more thing related to dynamic modules: seems to me unload-feature
> doesn't support dynamic modules yet. Will this be fixed?
>

Only answering this one: Unloading dynamic libraries is generally quite
hairy. I don't think there are plans to support it at the moment.

[Message part 2 (text/html, inline)]

Message #11 received at 28345 <at> debbugs.gnu.org (full text, mbox):

From: John Wiegley <jwiegley <at> gmail.com>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: Peking Duck <pekingducklabs <at> gmail.com>, 28345 <at> debbugs.gnu.org
Subject: Re: bug#28345: 25.2.1: package-install-file and dynamic modules
Date: Sun, 24 Sep 2017 16:12:31 -0700

>>>>> "PS" == Philipp Stephani <p.stephani2 <at> gmail.com> writes:

PS> Only answering this one: Unloading dynamic libraries is generally quite
PS> hairy. I don't think there are plans to support it at the moment.

Yes, I'd be surprised in fact if this is ever supported, unless it becomes a
more common and useful thing to have.

-- 
John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2

Message #14 received at 28345 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Peking Duck <pekingducklabs <at> gmail.com>
Cc: 28345 <at> debbugs.gnu.org
Subject: Re: bug#28345: 25.2.1: package-install-file and dynamic modules
Date: Sun, 04 Jul 2021 16:44:57 +0200

Peking Duck <pekingducklabs <at> gmail.com> writes:

> I wrote a dynamic module and am trying to use package.el to install it. I followed
> the instructions in the Emacs Lisp Manual and created a tar archive. This tar
> archive contains:
>
> sqlite3-api-0.1/
> sqlite3-api-0.1/sqlite3-api-pkg.el
> sqlite3-api-0.1/sqlite3-api.so
>
> I then evaluated
>
> (package-install-file "~/src/emacs-sqlite3-api/sqlite3-api-0.1.tar")
>
> and it gave me an error:
>
> (error "sqlite3-api.so:0:0: error: scan-error: (Containing expression ends
> prematurely 47501 47502)\
> ")
>
> From the backtrace, it's  autoload-generate-file-autoloads in autoload.el that
> caused it. Seems to me Emacs was trying to parse the .so looking for autoloads? 

(I'm going through old bug reports that unfortunately got no response at
the time.)

I'm not quite sure what the status of including .so files in Emacs
packages is now -- anybody know?  (.so files are architecture specific,
so I guess it's not something we do generally, but I guess people would
want to do it, anyway...) 

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #17 received at 28345 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: pekingducklabs <at> gmail.com, 28345 <at> debbugs.gnu.org
Subject: Re: bug#28345: 25.2.1: package-install-file and dynamic modules
Date: Sun, 04 Jul 2021 19:27:26 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date: Sun, 04 Jul 2021 16:44:57 +0200
> Cc: 28345 <at> debbugs.gnu.org
> 
> I'm not quite sure what the status of including .so files in Emacs
> packages is now -- anybody know?  (.so files are architecture specific,
> so I guess it's not something we do generally, but I guess people would
> want to do it, anyway...) 

Why not build the .so files as part of installing the package?

Message #20 received at 28345 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: pekingducklabs <at> gmail.com, 28345 <at> debbugs.gnu.org
Subject: Re: bug#28345: 25.2.1: package-install-file and dynamic modules
Date: Mon, 05 Jul 2021 15:05:48 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

>> I'm not quite sure what the status of including .so files in Emacs
>> packages is now -- anybody know?  (.so files are architecture specific,
>> so I guess it's not something we do generally, but I guess people would
>> want to do it, anyway...) 
>
> Why not build the .so files as part of installing the package?

I think that's the recommended way to do it, but then you need gcc etc
on the client machines.  I can see how it'd be convenient for some
people to distribute pre-built .so packages for (say) a small homogenic
set of hosts.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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