Bug#1096845: ipe-tools: ftbfs with GCC-15

[Matthias Klose]

Package: src:ipe-tools
Version: 1:7.2.29.1-1
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/ipe-tools_7.2.29.1-1_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

[...]

Sufficient free space for build

User Environment
----------------

APT_CONFIG=/var/lib/sbuild/apt.conf
HOME=/sbuild-nonexistent
LANG=C.UTF-8
LC_ALL=C.UTF-8
LOGNAME=user42
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
SHELL=/bin/sh
USER=user42

dpkg-buildpackage
-----------------

Command: dpkg-buildpackage --sanitize-env -us -uc -b
dpkg-buildpackage: info: source package ipe-tools
dpkg-buildpackage: info: source version 1:7.2.29.1-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Steve M. Robbins <smr at debian.org>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture amd64
 debian/rules clean
dh clean
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1'
/usr/bin/make -C figtoipe clean
make[2]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1/figtoipe'
rm -f figtoipe
make[2]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1/figtoipe'
/usr/bin/make -C ipe5toxml clean
make[2]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1/ipe5toxml'
make[2]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1/ipe5toxml'
/usr/bin/make -C pdftoipe clean
make[2]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1/pdftoipe'
make[2]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1/pdftoipe'
make[1]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1'
   dh_clean
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_build
make[1]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1'
dh_auto_build --sourcedirectory=figtoipe
	cd figtoipe && make -j8 "INSTALL=install --strip-program=true"
make[2]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1/figtoipe'
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-tools-7.2.29.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -O2 -Wall -W -o figtoipe figtoipe.cpp -Wl,-z,relro -Wl,-z,now -lz
make[2]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1/figtoipe'
dh_auto_build --sourcedirectory=ipe5toxml
	cd ipe5toxml && make -j8 "INSTALL=install --strip-program=true"
make[2]: Entering directory '/build/reproducible-path/ipe-tools-7.2.29.1/ipe5toxml'
cc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/ipe-tools-7.2.29.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -c -o ipe5toxml.o ipe5toxml.c
ipe5toxml.c:47:13: error: ‘bool’ cannot be defined via ‘typedef’
   47 | typedef int bool;
      |             ^~~~
ipe5toxml.c:47:13: note: ‘bool’ is a keyword with ‘-std=c23’ onwards
ipe5toxml.c:47:1: warning: useless type name in empty declaration
   47 | typedef int bool;
      | ^~~~~~~
make[2]: *** [<builtin>: ipe5toxml.o] Error 1
make[2]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1/ipe5toxml'
dh_auto_build: error: cd ipe5toxml && make -j8 "INSTALL=install --strip-program=true" returned exit code 2
make[1]: *** [debian/rules:10: override_dh_auto_build] Error 25
make[1]: Leaving directory '/build/reproducible-path/ipe-tools-7.2.29.1'
make: *** [debian/rules:6: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2