[Debichem-devel] Bug#1105320: elkcode: FTBFS with make --shuffle=reverse: Fatal Error: Cannot open module file ‘modmain.mod’ for reading at (1): No such file or directory

[Lucas Nussbaum]

Source: elkcode
Version: 10.4.9-1
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[3]: Entering directory '/build/reproducible-path/elkcode-10.4.9/src'
> Makefile:226: update target 'genidxthc.o' due to: target does not exist
> mpif90 `dpkg-buildflags --get FFLAGS` `dpkg-buildflags --get CPPFLAGS` -I/usr/include -Wall -ffast-math -funroll-loops -fopenmp -fallow-argument-mismatch `dpkg-buildflags --get LDFLAGS` -c genidxthc.f90
> genidxthc.f90:7:5:
> 
>     7 | use modmain
>       |     1
> Fatal Error: Cannot open module file ‘modmain.mod’ for reading at (1): No such file or directory
> compilation terminated.
> make[3]: *** [Makefile:226: genidxthc.o] Error 1 shuffle=reverse


The full build log is available from:
http://qa-logs.debian.net/2025/05/05/shuffle/reverse/elkcode_10.4.9-1_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