[Debian-astro-maintainers] Bug#1096855: iraf-rvsao: ftbfs with GCC-15

[Matthias Klose]

Package: src:iraf-rvsao
Version: 2.8.5-2
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/iraf-rvsao_2.8.5-2_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

[...]
dpkg-source: info: applying Add-NOAO-into-build-search-path.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
SHELL=/bin/sh
USER=user42

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

Command: dpkg-buildpackage --sanitize-env -us -uc -b
dpkg-buildpackage: info: source package iraf-rvsao
dpkg-buildpackage: info: source version 2.8.5-2
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-rvsao-2.8.5'
/usr/lib/iraf/unix/bin/rmbin.e lib
rm -rf bin
make[1]: Leaving directory '/build/reproducible-path/iraf-rvsao-2.8.5'
   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-rvsao-2.8.5'
rm -rf bin
mkdir bin
make[1]: Leaving directory '/build/reproducible-path/iraf-rvsao-2.8.5'
   debian/rules override_dh_auto_build
make[1]: Entering directory '/build/reproducible-path/iraf-rvsao-2.8.5'
mkpkg -p rvsao -x
hlib$mkpkg.inc:5: warning: macro `IRAFARCH' not found
$call relink
!mkpkg -p noao nrelink
hlib$mkpkg.inc:5: warning: macro `IRAFARCH' not found
check out file `librv.a = bin/librv.a'
$call librv.a
warning: library `librv.a' not found
mkpkg[1]: Entering directory `/build/reproducible-path/iraf-rvsao-2.8.5/Util/'
/usr/lib/iraf/unix/bin/xc.e -c -x -p noao t_bcvcorr.x compbcv.x ranges.x juldate.x getimage.x clsimage.x t_listspec.x t_pix2wl.x t_wl2pix.x gettemp.x getspec.x putspec.x getsky.x imgpar.x plotspec.x plotsum.x vcombine.x vhead.x writetemp.x replot.x legendre.x invert.x icsubcon.x contpars.x contsum.x apodize.x arc_w2p.x fourm.x smooth.x gsmooth.x matinv.x polfit.x bcv.f t_velset.x velsubs.x t_wlrange.x wlrange.x rebin.x wlcon.x loghead.x plotutil.x logtime.x fill.x zero.x median.x
Warning on line 240 of t_bcvcorr.x: statement cannot be reached
ar r /build/reproducible-path/iraf-rvsao-2.8.5/bin/librv.a t_bcvcorr.o compbcv.o ranges.o juldate.o getimage.o clsimage.o t_listspec.o t_pix2wl.o t_wl2pix.o gettemp.o getspec.o putspec.o getsky.o imgpar.o plotspec.o plotsum.o vcombine.o vhead.o writetemp.o replot.o legendre.o invert.o icsubcon.o contpars.o contsum.o apodize.o arc_w2p.o fourm.o smooth.o gsmooth.o matinv.o polfit.o bcv.o t_velset.o velsubs.o t_wlrange.o wlrange.o rebin.o wlcon.o loghead.o plotutil.o logtime.o fill.o zero.o median.o
ar: creating /build/reproducible-path/iraf-rvsao-2.8.5/bin/librv.a
ar: t_bcvcorr.o: No such file or directory
Util/mkpkg:56: error: Command 'ar r /build/reproducible-path/iraf-rvsao-2.8.5/bin/librv.a t_bcvcorr.o compbcv.o ranges.o juldate.o getimage.o clsimage.o t_listspec.o t_pix2wl.o t_wl2pix.o gettemp.o getspec.o putspec.o getsky.o imgpar.o plotspec.o plotsum.o vcombine.o vhead.o writetemp.o replot.o legendre.o invert.o icsubcon.o contpars.o contsum.o apodize.o arc_w2p.o fourm.o smooth.o gsmooth.o matinv.o polfit.o bcv.o t_velset.o velsubs.o t_wlrange.o wlrange.o rebin.o wlcon.o loghead.o plotutil.o logtime.o fill.o zero.o median.o' returned error
mkpkg[1]: Leaving directory `/build/reproducible-path/iraf-rvsao-2.8.5/Util/'
mkpkg:18: error: Command 'mkpkg -p noao nrelink' returned error
mkpkg[0]: Leaving directory `/build/reproducible-path/iraf-rvsao-2.8.5/'
make[1]: *** [debian/rules:14: override_dh_auto_build] Error 1
make[1]: Leaving directory '/build/reproducible-path/iraf-rvsao-2.8.5'
make: *** [debian/rules:5: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2