supernovas fails to cross build from source, because calceph support is
detected as absent via ldconfig, which gives results for the build
architecture rather than the host architecture. In order to maximize
build reproducibility, I suggest skipping detection and being explicit
about optional features are supposed to be enabled. Once doing so, the
cross build succeeds. I'm attaching a patch for your convenience.

Helmut

Thanks Helmut,


I applied the patch, and prepped an update package with it (1.4.2-3).
Hopefully, it will be uploaded soon.

We believe that the bug you reported is fixed in the latest version of
supernovas, 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 1112635@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Attila Kovacs <attipaci@gmail.com> (supplier of updated supernovas 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 16:33:23 +0200
Source: supernovas
Architecture: source
Version: 1.4.2-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Astro Team <debian-astro-maintainers@lists.alioth.debian.org>
Changed-By: Attila Kovacs <attipaci@gmail.com>
Closes: 1112635
Changes:
 supernovas (1.4.2-2) unstable; urgency=medium
 .
   [ Helmut Grohne ]
   * Fix FTCBFS: Don't autodetect calceph and cspice. (Closes: #1112635)
 .
   [ Attila Kovacs ]
   * Mark cio-data and doc subpackages as Multi-Arch: foreign
Checksums-Sha1:
 29d40b36b881c3089b78d83188b1364940a2f02c 2622 supernovas_1.4.2-2.dsc
 5d6a770c8dfc722f7dbd210a665c468ec45c4f75 6908 supernovas_1.4.2-2.debian.tar.xz
 cf732872d94150655653c5fedb6f6b0c556d921d 9153 supernovas_1.4.2-2_amd64.buildinfo
Checksums-Sha256:
 a4ecd2dae74eb3bb3e5be2f886c3ae0ddd881ddcbc8495f99f10aa7ddd69d2b4 2622 supernovas_1.4.2-2.dsc
 1d17c4dc98267470a92b51bbeb85dd8dbf6c4ea2d195f9045664e08b8ea8b67b 6908 supernovas_1.4.2-2.debian.tar.xz
 5d00e8f50676ae3b3c7799c20cffb672921c7a2d2561eb634390e392368b4426 9153 supernovas_1.4.2-2_amd64.buildinfo
Files:
 8aa802f557f1defade28f9b5fb34a705 2622 devel optional supernovas_1.4.2-2.dsc
 523ab7b3c0e529eb2a0e03d49c3dd661 6908 devel optional supernovas_1.4.2-2.debian.tar.xz
 17a48307e3f3e7163cf766dd3470c434 9153 devel optional supernovas_1.4.2-2_amd64.buildinfo
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