Bug#1105272: blockout2: FTBFS with make --shuffle=reverse: ImageLib/src/png/hpng.c:199:1: fatal error: opening dependency file obj/il/src/png/hpng.d: No such file or directory

[Lucas Nussbaum]

Source: blockout2
Version: 2.5+dfsg1-2
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):
> g++ -Wdate-time -D_FORTIFY_SOURCE=2 -MMD -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/blockout2-2.5+dfsg1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -I/usr/include/SDL -I./ImageLib/src -Dlinux -DLOCALTIME64 -c BlockOut/Pit.cpp -o obj/bo/Pit.o
> cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++
> cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++
> cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++
> ImageLib/src/png/hpng.c:199:1: fatal error: opening dependency file obj/il/src/png/hpng.d: No such file or directory
>   199 | }
>       | ^
> compilation terminated.
> make[2]: *** [debian/Makefile:28: obj/il/src/png/hpng.o] Error 1 shuffle=reverse


The full build log is available from:
http://qa-logs.debian.net/2025/05/05/shuffle/reverse/blockout2_2.5+dfsg1-2_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