[Debian-astro-maintainers] Bug#1105615: splash: FTBFS with make --shuffle=reverse: Fatal Error: Cannot open module file ‘readdata_sphng.mod’ for reading at (1): No such file or directory

[Lucas Nussbaum]

Source: splash
Version: 3.11.2-1
Severity: minor
Tags: trixie sid ftbfs
User: lucas at debian.org
Usertags: ftbfs-shuffle

Hi,

GNU Make now has a --shuffle option that simulates non-deterministic ordering
of target prerequisites. See
https://trofi.github.io/posts/238-new-make-shuffle-mode.html and also previous
work in Debian by Santiago Vila:
https://people.debian.org/~sanvila/make-shuffle/

This package fails to build with make --shuffle=reverse.
This is likely to be caused by a missing dependency in
debian/rules or an upstream Makefile.

More information about this mass bug filing is available at
https://wiki.debian.org/qa.debian.org/FTBFS/Shuffle

Relevant part (hopefully):
> make[2]: Entering directory '/build/reproducible-path/splash-3.11.2/build'
> Makefile:360: update target 'read_data.o' due to: target does not exist
> gfortran -DDP -g -O2 -ffile-prefix-map=/build/reproducible-path/splash-3.11.2=. -fstack-protector-strong -fstack-clash-protection -fcf-protection -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -fopenmp -fdefault-real-8 -fdefault-double-8 -c ../src/read_data.F90 -o read_data.o
> ../src/read_data.F90:31:6:
> 
>    31 |  use readdata_sphNG,        only:read_data_sphNG,        set_labels_sphNG,   file_format_is_sphNG
>       |      1
> Fatal Error: Cannot open module file ‘readdata_sphng.mod’ for reading at (1): No such file or directory
> compilation terminated.
> make[2]: *** [Makefile:360: read_data.o] Error 1 shuffle=reverse


The full build log is available from:
http://qa-logs.debian.net/2025/05/05/shuffle/reverse/splash_3.11.2-1_unstable_reverse.log

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects