[Debian-astro-maintainers] Bug#1105412: iraf: FTBFS with make --shuffle=reverse: xwsne.c:1:10: fatal error: f2c.h: No such file or directory

[Lucas Nussbaum]

Source: iraf
Version: 2.18.1-2
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):
> cc -c -DSkip_f2c_Undefs -O -w -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/iraf-2.18.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -I/build/reproducible-path/iraf-2.18.1/unix/hlib/libc -D_GNU_SOURCE -DNOVOS wsne.c
> xwsne.c:1:10: fatal error: f2c.h: No such file or directory
>     1 | #include "f2c.h"
>       |          ^~~~~~~
> compilation terminated.
> make[5]: *** [makefile.u:23: xwsne.o] Error 1 shuffle=reverse


The full build log is available from:
http://qa-logs.debian.net/2025/05/05/shuffle/reverse/iraf_2.18.1-2_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