Bug#1096393: briquolo: ftbfs with GCC-15

[Matthias Klose]

Package: src:briquolo
Version: 0.5.7-11
Severity: important
Tags: sid forky
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-15

[This bug is NOT targeted to the upcoming trixie release]

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-15/g++-15, but succeeds to build with gcc-14/g++-14. The
severity of this report will be raised before the forky release.

The full build log can be found at:
http://qa-logs.debian.net/2025/02/16/amd64exp/briquolo_0.5.7-11_unstable_gccexp.log.gz
The last lines of the build log are at the end of this report.

To build with GCC 15, either set CC=gcc-15 CXX=g++-15 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

GCC 15 now defaults to the C23/C++23 standards, exposing many FTBFS.
Other Common build failures are new warnings resulting in build failures
with -Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-15/porting_to.html

[...]
MOGL_Fenetre.h:53:12: note: there is 1 candidate
   53 |     struct CompareResolution
      |            ^~~~~~~~~~~~~~~~~
MOGL_Fenetre.h:55:14: note: candidate 1: ‘bool MOGL_Fenetre::CompareResolution::operator()(const MOGL_Fenetre::MOGL_Resolution&, const MOGL_Fenetre::MOGL_Resolution&)’ (near match)
   55 |         bool operator() (const MOGL_Resolution & x, const MOGL_Resolution & y)
      |              ^~~~~~~~
MOGL_Fenetre.h:55:14: note: passing ‘const MOGL_Fenetre::CompareResolution*’ as ‘this’ argument discards qualifiers
make[4]: *** [Makefile:482: MOGL_Fenetre.o] Error 1
make[4]: *** Waiting for unfinished jobs....
MOGL_FenetreKit.cpp: In member function ‘void MOGL_FenetreKit::Clavier(SDL_keysym*)’:
MOGL_FenetreKit.cpp:86:36: warning: ISO C++ forbids converting a string constant to ‘char*’ [-Wwrite-strings]
   86 |       _Fenetre.ScreenshotPrefixBMP("mogl");
      |                                    ^~~~~~
In file included from MOGL_GenerateurParticule.cpp:22:
MOGL_GenerateurParticule.h:55:20: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:20: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
      |                    -                  -
MOGL_GenerateurParticule.h:55:22: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:22: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
      |                      -               -
In file included from MOGL_GenPartFeu.h:25,
                 from MOGL_GenPartFeu.cpp:22:
MOGL_GenerateurParticule.h:55:20: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:20: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
      |                    -                  -
MOGL_GenerateurParticule.h:55:22: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:22: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
      |                      -               -
In file included from MOGL_GenPartFume.h:27,
                 from MOGL_GenPartFume.cpp:22:
MOGL_GenerateurParticule.h:55:20: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:20: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                    ^~~~~~~~~~~~~~~~~~~~
      |                    -                  -
MOGL_GenerateurParticule.h:55:22: warning: unnecessary parentheses in declaration of ‘_TabParticule’ [-Wparentheses]
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
MOGL_GenerateurParticule.h:55:22: note: remove parentheses
   55 |     MOGL_Particule (*(* _TabParticule));
      |                      ^~~~~~~~~~~~~~~~~
      |                      -               -
make[4]: Leaving directory '/build/reproducible-path/briquolo-0.5.7/src/MOGL'
make[3]: *** [Makefile:509: all-recursive] Error 1
make[3]: Leaving directory '/build/reproducible-path/briquolo-0.5.7/src'
make[2]: *** [Makefile:291: all-recursive] Error 1
make[2]: Leaving directory '/build/reproducible-path/briquolo-0.5.7'
make[1]: *** [Makefile:227: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/briquolo-0.5.7'
dh_auto_build: error: make -j8 returned exit code 2
make: *** [debian/rules:7: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2