GNU bug report logs - #75903
29.4; compat 30.0.2.0 build failure on Emacs 28.2

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From: Daniel Mendler <mail <at> daniel-mendler.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 75903 <at> debbugs.gnu.org, Xiyue Deng <manphiz <at> gmail.com>
Subject: bug#75903: 29.4; compat 30.0.2.0 build failure on Emacs 28.2
Date: Tue, 28 Jan 2025 13:59:55 +0100

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

>> From: Xiyue Deng <manphiz <at> gmail.com>
>> Date: Mon, 27 Jan 2025 15:22:47 -0800
>> 
>> When trying to build compat 30.0.2.0 using Emacs 28.2 from Debian
>> Bookworm (the current stable release), the build process throws the
>> following error:
>> 
>> ,----
>> | ...
>> | dh binary --with elpa
>> |    dh_update_autotools_config
>> |    dh_autoreconf
>> |    dh_auto_configure
>> |    dh_auto_build
>> |         make -j2 "INSTALL=install --strip-program=true"
>> | make[1]: Entering directory '/build/reproducible-path/compat-el-30.0.2.0+dfsg'
>> | Compiling compat-25.el
>> | Compiling compat-26.el
>> | Compiling compat-27.el
>> | Compiling compat-28.el
>> | Compiling compat-29.el
>> | Compiling compat-30.el
>> | 
>> | In toplevel form:
>> | compat-30.el:28:1: Error: untrusted-content already defined
>> | make[1]: *** [Makefile:81: compat-30.elc] Error 1
>> | make[1]: *** Waiting for unfinished jobs....
>> | make[1]: Leaving directory '/build/reproducible-path/compat-el-30.0.2.0+dfsg'
>> | dh_auto_build: error: make -j2 "INSTALL=install --strip-program=true" returned exit code 2
>> | make: *** [debian/rules:4: binary] Error 25
>> | dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
>> | --------------------------------------------------------------------------------
>> | Build finished at 2025-01-27T23:09:47Z
>> `----
>> 
>> This doesn't happen when building using Emacs 29.4 from Debian Trixie
>> (current testing).
>
> Daniel, could you please look into this?

You can build Compat with (setq compat-strict nil). Compat has strict
checks in place which check that the defined symbols match the reported
Emacs version. These checks are for the purpose of Compat development. I
suspect that Debian has security patches applied which turn Emacs 28.2
into an Emacs 28/29 mix. See also the report at
https://github.com/emacs-compat/compat/issues/60.

Daniel

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