[Debian-med-packaging] Bug#1074947: fastdnaml: ftbfs with GCC-14

[Matthias Klose]

Package: src:fastdnaml
Version: 1.2.2-16
Severity: important
Tags: sid trixie
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-14

[This bug is 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-14/g++-14, but succeeds to build with gcc-13/g++-13. The
severity of this report will be raised before the trixie release.

The full build log can be found at:
http://qa-logs.debian.net/2024/07/01/fastdnaml_1.2.2-16_unstable_gccexp.log
The last lines of the build log are at the end of this report.

To build with GCC 14, either set CC=gcc-14 CXX=g++-14 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

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-14/porting_to.html

[...]
dpkg-source: info: applying hardening.patch
dpkg-source: info: applying cross.patch
dpkg-source: info: applying fixup-implicit-function-declaration.patch

Check disk space
----------------

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
SCHROOT_ALIAS_NAME=unstable
SCHROOT_CHROOT_NAME=sid-amd64-sbuild
SCHROOT_COMMAND=env
SCHROOT_GID=1001
SCHROOT_GROUP=user42
SCHROOT_SESSION_ID=sid-amd64-sbuild-50941bc7-7286-4b9a-b3c7-d696772a0d2a
SCHROOT_UID=1001
SCHROOT_USER=user42
SHELL=/bin/sh
USER=user42

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

Command: dpkg-buildpackage --sanitize-env -us -uc -b -rfakeroot
dpkg-buildpackage: info: source package fastdnaml
dpkg-buildpackage: info: source version 1.2.2-16
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Nilesh Patra <nilesh at iki.fi>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture amd64
 debian/rules clean
dh clean
   dh_auto_clean
	make -j8 clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
(cd source; rm -f *.o fastDNAml)
rm -rf tests
rm -f checkpoint.*
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   debian/rules override_dh_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_clean
rm -fr source/fastDNAml
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   dh_auto_configure
   dh_auto_build
	make -j8 "INSTALL=install --strip-program=true"
make[1]: Entering directory '/<<PKGBUILDDIR>>'
cd source && cc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection fastDNAml.c  -o fastDNAml -lm -Wl,-z,relro -Wl,-z,now
fastDNAml.c:4751:3: error: return type defaults to ‘int’ [-Wimplicit-int]
 4751 |   main ()
      |   ^~~~
make[1]: *** [Makefile:4: fastDNAml] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_build: error: make -j8 "INSTALL=install --strip-program=true" returned exit code 2
make: *** [debian/rules:8: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2