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Date: Mon, 13 Apr 2026 15:10:32 +0200
From: Emanuele Rocca &lt;ema@debian.org&gt;
To: maintonly@bugs.debian.org
Subject: rheolef: ftbfs with GCC-16
Message-ID: &lt;adzrSCqjMPEUbRrA@ariel.home&gt;
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Package: src:rheolef
Version: 7.2-7
Severity: important
Tags: sid forky ftbfs
User: debian-gcc@lists.debian.org
Usertags: ftbfs-gcc-16

Hi,

rheolef fails to build in a test rebuild on at least amd64 and arm64 with
gcc-16/g++-16, but builds properly with gcc-15/g++-15. The severity of this
report will be raised before the forky release.

The full build log can be found at:
https://people.debian.org/~ema/gcc-16-rebuilds/output-1/rheolef_arm64.build.xz

The last lines of the build log are at the end of this report.

To build with GCC 16, either set CC=gcc-16 CXX=g++-16 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

Common build failures include unused (but set) variables, array subscripts
partly outside array bounds, and new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-16/porting_to.html

Please only close this issue after double-checking that the package can be
built correctly with GCC 16.

Please do not reassign this bug to another package. If a fix in another package
is required, then file a bug for the other package (or clone), and mark this
bug as blocked by the bug in the other package.

[...]


pdfdir='${docdir}'
pkglibdir='${prefix}/lib/aarch64-linux-gnu/rheolef'
prefix='/usr'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='/etc'
target_alias=''

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME &quot;rheolef&quot;
#define PACKAGE_TARNAME &quot;rheolef&quot;
#define PACKAGE_VERSION &quot;7.2&quot;
#define PACKAGE_STRING &quot;rheolef 7.2&quot;
#define PACKAGE_BUGREPORT &quot;&quot;
#define PACKAGE_URL &quot;&quot;
#define PACKAGE &quot;rheolef&quot;
#define VERSION &quot;7.2&quot;
#define PKGDATADIR &quot;/usr/share/rheolef&quot;
#define RHEOLEF_LIBDIR &quot;/usr/lib/aarch64-linux-gnu&quot;
#define HAVE_STDIO_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_STRINGS_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define STDC_HEADERS 1
#define HAVE_DLFCN_H 1
#define LT_OBJDIR &quot;.libs/&quot;
#define HAVE_CXX_STD_2017 1
#define MAJOR_VERSION 7
#define MINOR_VERSION 2
#define HAVE_UNISTD_H 1
#define HAVE_ALLOCA_H 1
#define HAVE_ALLOCA 1
#define HAVE_GETTIMEOFDAY 1
#define HAVE_CLOCK_GETTIME 1
#define HAVE_ISINF_DOUBLE 1
#define HAVE_ABS_DOUBLE 1
#define PARAVIEW_VERSION_MAJOR 5
#define PARAVIEW_VERSION_MINOR 7
#define HAVE_LONG_LONG_INT 1
#define HAVE_UNSIGNED_LONG_LONG_INT 1
#define HAVE_BOOST 1
#define HAVE_EIGEN 1
#define HAVE_BLAS 1
#define HAVE_SCALAPACK 1
#define HAVE_MUMPS_WITH_METIS 1
#define MUMPS_VERSION_MAJOR 5
#define MUMPS_VERSION_MINOR 8
#define HAVE_CHOLMOD 1
#define HAVE_UMFPACK 1
#define HAVE_SUITESPARSE_AMD_H 1
#define HAVE_SUITESPARSE_AMD 1
#define ABS_TOP_SRCDIR &quot;/build/reproducible-path/rheolef-7.2&quot;

configure: exit 1
dh_auto_configure: error: ./configure --build=aarch64-linux-gnu --prefix=/usr --includedir=\${prefix}/include --mandir=\${prefix}/share/man --infodir=\${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules --libdir=\${prefix}/lib/aarch64-linux-gnu --runstatedir=/run --disable-maintainer-mode --disable-dependency-tracking --disable-optim --enable-debian-packaging --enable-fast-install --disable-ginac --without-trilinos-libdir --enable-permissive returned exit code 1
make[1]: *** [debian/rules:45: override_dh_auto_configure] Error 25
make[1]: Leaving directory '/build/reproducible-path/rheolef-7.2'
make: *** [debian/rules:30: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
]