ros-common-msgs fails to cross build from source, because a Python
interpreter fails to import the host's sysconfigdata module. This is
provided by libpython3-dev and hence ros-common-msgs should depend on
it. In the native case, libpython3-minimal provides it, but that's not
requested for the host. I'm attaching a patch for your convenience.

Helmut

Hello,

Bug #1112084 in ros-common-msgs reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/science-team/ros-common-msgs/-/commit/6673b2758f8c4f27a3e46e70b9fef20805e74627
------------------------------------------------------------------------
Add missing cross-build dependency

Thanks: Helmut Grohne
Closes: #1112084
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1112084

We believe that the bug you reported is fixed in the latest version of
ros-common-msgs, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1112084@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Timo Röhling <roehling@debian.org> (supplier of updated ros-common-msgs package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Thu, 28 Aug 2025 10:06:20 +0200
Source: ros-common-msgs
Architecture: source
Version: 1.13.2-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
Changed-By: Timo Röhling <roehling@debian.org>
Closes: 1112084
Changes:
 ros-common-msgs (1.13.2-1) unstable; urgency=medium
 .
   * New upstream version 1.13.2
   * Wrap and sort Debian package files
   * Bump Standards-Version to 4.7.2
   * Add missing cross-build dependency.
     Thanks to Helmut Grohne (Closes: #1112084)
Checksums-Sha1:
 32f05a86b6cdf058cfcf50433e2ff5f83670b429 4844 ros-common-msgs_1.13.2-1.dsc
 5b432836098f91050ee740e129da5cac9b088a8a 69297 ros-common-msgs_1.13.2.orig.tar.gz
 d9a72ddfe568f2915552b6d697d109fdf8847e28 6436 ros-common-msgs_1.13.2-1.debian.tar.xz
Checksums-Sha256:
 a821424034029d241bc3f24aac7c7e377c10c2a5580881166c53f142eb591c53 4844 ros-common-msgs_1.13.2-1.dsc
 ac2501620ecb29b5c4125727ccad0be630e00001bdc3ee86ed84df2131044934 69297 ros-common-msgs_1.13.2.orig.tar.gz
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Files:
 b1bc1d4ae9a453850bef4f0738e7b38d 4844 libs optional ros-common-msgs_1.13.2-1.dsc
 817f2dd3f804d54267a9c7fbbe3f3728 69297 libs optional ros-common-msgs_1.13.2.orig.tar.gz
 3bf7b46673b9830edb3c2cfcb544af63 6436 libs optional ros-common-msgs_1.13.2-1.debian.tar.xz
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