[Debian-astro-maintainers] Bug#1096858: iraf-st4gem: ftbfs with GCC-15

[Matthias Klose]

Package: src:iraf-st4gem
Version: 1.0+ds-3
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/iraf-st4gem_1.0+ds-3_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

[...]
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 iraf-st4gem
dpkg-buildpackage: info: source version 1.0+ds-3
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Ole Streicher <olebole 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/iraf-st4gem-1.0+ds'
/usr/lib/iraf/unix/bin/rmbin.e lib pkg
rm -rf bin
make[1]: Leaving directory '/build/reproducible-path/iraf-st4gem-1.0+ds'
   dh_clean
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/build/reproducible-path/iraf-st4gem-1.0+ds'
rm -rf bin
mkdir -p bin
make[1]: Leaving directory '/build/reproducible-path/iraf-st4gem-1.0+ds'
   debian/rules override_dh_auto_build
make[1]: Entering directory '/build/reproducible-path/iraf-st4gem-1.0+ds'
mkpkg -p st4gem -x
hlib$mkpkg.inc:5: warning: macro `IRAFARCH' not found
This software was prepared by Space Telescope Science Institute under
U.S. Government contract NAS5-26555. Users shall not, without prior
written permission of the U.S. Government, establish a claim to
statutory copyright.  The Government and others acting on its behalf,
shall have a royalty-free, non-exclusive, irrevocable, worldwide
license for Government purposes to publish, distribute, translate,
copy, exhibit, and perform such material.
!date
Sun Feb 16 03:20:29 UTC 2025
$call update
$call lib
===================== LIB =========================

$call update at lib
mkpkg[1]: Entering directory `/build/reproducible-path/iraf-st4gem-1.0+ds/lib/'
!date
Sun Feb 16 03:20:29 UTC 2025
------------------------  APPLIB  ---------------------------
$call libapplib.a
warning: library `libapplib_p.a' not found
mkpkg[2]: Entering directory `/build/reproducible-path/iraf-st4gem-1.0+ds/lib/applib/'
/usr/lib/iraf/unix/bin/xc.e -c -x -p st4gem  -x -x res_utils.x ncarfft.f
Warning on line 120 of res_utils.x: local variable rlist never used
Warning on line 120 of res_utils.x: local variable respt never used
Warning on line 120 of res_utils.x: local variable nullpt never used
ar r /build/reproducible-path/iraf-st4gem-1.0+ds/lib/libapplib_p.a res_utils.o ncarfft.o
ar: creating /build/reproducible-path/iraf-st4gem-1.0+ds/lib/libapplib_p.a
ar: res_utils.o: No such file or directory
lib/applib/mkpkg:12: error: Command 'ar r /build/reproducible-path/iraf-st4gem-1.0+ds/lib/libapplib_p.a res_utils.o ncarfft.o' returned error
mkpkg[2]: Leaving directory `/build/reproducible-path/iraf-st4gem-1.0+ds/lib/applib/'
make[1]: *** [debian/rules:14: override_dh_auto_build] Error 1
make[1]: Leaving directory '/build/reproducible-path/iraf-st4gem-1.0+ds'
make: *** [debian/rules:5: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2