Bug#1098093: widelands: ftbfs with GCC-15

[Matthias Klose]

Package: src:widelands
Version: 2:1.2.1-2
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/widelands_1.2.1-2_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

[...]
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/br/LC_MESSAGES/widelands.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/br_widelands.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/tribes.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_tribes.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES/widelands_console.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_widelands_console.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/br_win_conditions.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES/widelands_editor.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_widelands_editor.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/br/LC_MESSAGES/world.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/br_world.tmp.po
[  8%] Generating translations for locale ca category tribes_encyclopedia
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_widelands_editor.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_widelands_console.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/br_world.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/tribes_encyclopedia/ca.po /build/reproducible-path/widelands-1.2.1/po/tribes_encyclopedia/tribes_encyclopedia.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_tribes_encyclopedia.tmp.po
[  8%] Generating translations for locale ca category widelands
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
[  8%] Generating translations for locale ar category win_conditions
[  8%] Generating translations for locale ar category world
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/br_widelands.tmp.po
[  8%] Generating translations for locale ca category widelands_console
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_tribes.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/widelands/ca.po /build/reproducible-path/widelands-1.2.1/po/widelands/widelands.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/win_conditions/ar.po /build/reproducible-path/widelands-1.2.1/po/win_conditions/win_conditions.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_win_conditions.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/world/ar.po /build/reproducible-path/widelands-1.2.1/po/world/world.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_world.tmp.po
make[3]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/widelands_console/ca.po /build/reproducible-path/widelands-1.2.1/po/widelands_console/widelands_console.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_console.tmp.po
[  8%] Built target translang_br
[  8%] Generating translations for locale ca category widelands_editor
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES/win_conditions.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_win_conditions.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ar/LC_MESSAGES/world.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_world.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/widelands_console.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_console.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_win_conditions.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_console.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ar_world.tmp.po
[  8%] Generating translations for locale ca category win_conditions
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/widelands_editor/ca.po /build/reproducible-path/widelands-1.2.1/po/widelands_editor/widelands_editor.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_editor.tmp.po
make[3]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/win_conditions/ca.po /build/reproducible-path/widelands-1.2.1/po/win_conditions/win_conditions.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_win_conditions.tmp.po
[  8%] Linking CXX static library libthird_party_libmd.a
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/widelands_editor.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_editor.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/src/third_party && /usr/bin/cmake -P CMakeFiles/third_party_libmd.dir/cmake_clean_target.cmake
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands_editor.tmp.po
[  8%] Generating translations for locale ca category world
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E make_directory /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES
[  8%] Built target translang_ar
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/src/third_party && /usr/bin/cmake -E cmake_link_script CMakeFiles/third_party_libmd.dir/link.txt --verbose=1
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/win_conditions.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_win_conditions.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgmerge -q --no-wrap /build/reproducible-path/widelands-1.2.1/po/world/ca.po /build/reproducible-path/widelands-1.2.1/po/world/world.pot -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_world.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_win_conditions.tmp.po
/usr/bin/ar qc libthird_party_libmd.a CMakeFiles/third_party_libmd.dir/libmd/src/helper_md5.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha1.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha224.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha256.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha384.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha512_256.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/helper_sha512.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/md5.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/sha1.cc.o CMakeFiles/third_party_libmd.dir/libmd/src/sha2.cc.o
/usr/bin/ranlib libthird_party_libmd.a
make[3]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/world.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_world.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_world.tmp.po
[  8%] Built target third_party_libmd
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/widelands.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_widelands.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && /usr/bin/msgfmt -o /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/locale/ca/LC_MESSAGES/tribes_encyclopedia.mo /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_tribes_encyclopedia.tmp.po
cd /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po && cmake -E remove /build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu/po/ca_tribes_encyclopedia.tmp.po
make[3]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
[  8%] Built target translang_ca
make[2]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
make[1]: *** [Makefile:149: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/widelands-1.2.1/obj-x86_64-linux-gnu'
dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j8 "INSTALL=install --strip-program=true" VERBOSE=1 returned exit code 2
make: *** [debian/rules:10: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2