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Date: Tue, 13 May 2025 20:51:00 +0200
From: Lucas Nussbaum &lt;lucas@debian.org&gt;
To: submit@bugs.debian.org
Subject: alfa: FTBFS with make =?utf-8?Q?--shuffle?=
 =?utf-8?Q?=3Dreverse=3A_Fatal_Error=3A_Cannot_open_module_file_=E2=80=98m?=
 =?utf-8?Q?od=5Freadfiles=2Emod?= =?utf-8?B?4oCZ?= for reading at (1): No
 such file or directory
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Source: alfa
Version: 2.2-1
Severity: minor
Tags: trixie sid ftbfs
User: lucas@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):
&gt; make[1]: Entering directory '/build/reproducible-path/alfa-2.2'
&gt; Makefile:78: update target 'source/alfa.o' due to: target does not exist
&gt; gfortran -g -O2 -ffile-prefix-map=/build/reproducible-path/alfa-2.2=. -fstack-protector-strong -fstack-clash-protection -fcf-protection -cpp -DPREFIX=\&quot;/usr\&quot; -DVERSION=\&quot;2.2-1\&quot; -ffree-line-length-0 -Jsource/ -fopenmp -O3 -fno-backtrace source/alfa.f90 -c -o source/alfa.o
&gt; source/alfa.f90:18:5:
&gt; 
&gt;    18 | use mod_readfiles
&gt;       |     1
&gt; Fatal Error: Cannot open module file ‘mod_readfiles.mod’ for reading at (1): No such file or directory
&gt; compilation terminated.
&gt; make[1]: *** [Makefile:78: source/alfa.o] Error 1 shuffle=reverse


The full build log is available from:
http://qa-logs.debian.net/2025/05/05/shuffle/reverse/alfa_2.2-1_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
]