[From nobody Wed Apr 22 03:47:07 2026 Received: (at maintonly) by bugs.debian.org; 13 Apr 2026 13:11:56 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-116.6 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,FOURLA,FROMDEVELOPER,FVGT_m_MULTI_ODD, HAS_PACKAGE,SPF_HELO_NONE,SPF_NONE,UNPARSEABLE_RELAY, USER_IN_DKIM_WELCOMELIST autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 38; hammy, 150; neutral, 209; spammy, 0. spammytokens: hammytokens:0.000-+--Hx-spam-relays-external:sk:stravin, 0.000-+--H*RT:sk:stravin, 0.000-+--Hx-spam-relays-external:311, 0.000-+--H*RT:311, 0.000-+--H*RT:108 Return-path: <ema@debian.org> Received: from stravinsky.debian.org ([2001:41b8:202:deb::311:108]:38480) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCH52-002nAI-2v for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:11:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Content-Transfer-Encoding:Content-Type :MIME-Version:Message-ID:Subject:To:From:Date:Reply-To:Cc:Content-ID: Content-Description:In-Reply-To:References; bh=TrPix1QzN0HJSbDEPsLewc7FwhewkNKdbGcm/3dItAA=; b=cxBdLVyKFC5R9fNoXsgSnaQXGI QajpuHZmUmFOJAQR0uzKsPfDdrUs1pFjuX/s0zO++vKlWDe4zLr59oZNKpKWU4tpOGSpCI44HELuq ralp5dOhZPu900zIlzrPJhmcn6k/jYM0l1qUNoEXiCMuXVKndIMQ2fcHShx+xb01W6mhafefoxgei iIJUYb9QcS2tGLoqpEQEAh6OhrZabxiBHw1JHbFN6aTsOzhKQFb0fnAzWZHIeh6+au1bRNW0yYqnO RIrkp/qkor1cv+qRTPm9abFMumd5pcQfgrhrnjAcfQAtoE68pDvixRSmcgB+u/F+LjBV9RHmOKd/O x7rSOAmA==; Received: from authenticated user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCH51-00CJk4-0l for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:11:55 +0000 Date: Mon, 13 Apr 2026 15:11:54 +0200 From: Emanuele Rocca <ema@debian.org> To: maintonly@bugs.debian.org Subject: theseus: ftbfs with GCC-16 Message-ID: <adzrmjzdo7DsYEvq@ariel.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Debian-User: ema Delivered-To: maintonly@bugs.debian.org Package: src:theseus Version: 3.3.0-14 Severity: important Tags: sid forky ftbfs User: debian-gcc@lists.debian.org Usertags: ftbfs-gcc-16 Hi, theseus 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/theseus_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. [...] APT_CONFIG=/var/lib/sbuild/apt.conf HOME=/sbuild-nonexistent LANG=en_GB.UTF-8 LC_ALL=C.UTF-8 LOGNAME=sbuild OLDPWD=/work/ema/archive-rebuild PARALLEL_JOBSLOT0=2 PARALLEL_JOBSLOT=3 PARALLEL_PID=1532054 PARALLEL_REMOTE_TMPDIR=/tmp PARALLEL_RSYNC_OPTS=-rlDzR PARALLEL_SEQ=8273 PARALLEL_SSHHOST=: PARALLEL_SSHLOGIN=: PARALLEL_TMP=/tmp/parXROYd PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games SHELL=/bin/sh SSHPASS= USER=sbuild XDG_SESSION_CLASS=user dpkg-buildpackage ----------------- Command: dpkg-buildpackage --sanitize-env -us -uc -b dpkg-buildpackage: info: source package theseus dpkg-buildpackage: info: source version 3.3.0-14 dpkg-buildpackage: info: source distribution unstable dpkg-buildpackage: info: source changed by Pierre Gruet <pgt@debian.org> dpkg-source --before-build . dpkg-buildpackage: info: host architecture arm64 debian/rules clean dh clean dh_auto_clean make -j128 clean make[1]: Entering directory '/build/reproducible-path/theseus-3.3.0' find . -name '*.[oa]' -exec rm -f {} \; rm -f theseus distfit make[1]: Leaving directory '/build/reproducible-path/theseus-3.3.0' dh_clean debian/rules binary dh binary dh_update_autotools_config dh_autoreconf dh_auto_configure debian/rules override_dh_auto_build make[1]: Entering directory '/build/reproducible-path/theseus-3.3.0' dh_auto_build --no-parallel make -j1 INSTALL="install --strip-program=true" make[2]: Entering directory '/build/reproducible-path/theseus-3.3.0' mkdir -p lib ( cd libdistfit; make && cp libdistfit.a ../lib ) make[3]: Entering directory '/build/reproducible-path/theseus-3.3.0/libdistfit' /usr/bin/gcc -O3 -ffast-math -fstrict-aliasing -funroll-loops -fomit-frame-pointer -Wall -Werror -pedantic -std=c99 -Wno-unused-result -Wformat-truncation=0 -pthread -c statistics.c /usr/bin/gcc -O3 -ffast-math -fstrict-aliasing -funroll-loops -fomit-frame-pointer -Wall -Werror -pedantic -std=c99 -Wno-unused-result -Wformat-truncation=0 -pthread -c beta_dist.c /usr/bin/gcc -O3 -ffast-math -fstrict-aliasing -funroll-loops -fomit-frame-pointer -Wall -Werror -pedantic -std=c99 -Wno-unused-result -Wformat-truncation=0 -pthread -c betaprime_dist.c /usr/bin/gcc -O3 -ffast-math -fstrict-aliasing -funroll-loops -fomit-frame-pointer -Wall -Werror -pedantic -std=c99 -Wno-unused-result -Wformat-truncation=0 -pthread -c betasym_dist.c betasym_dist.c: In function ‘betasym_fit’: betasym_dist.c:181:25: error: variable ‘ave’ set but not used [-Werror=unused-but-set-variable=] 181 | double a, ave, var, fx, dfx, tmp; | ^~~ cc1: all warnings being treated as errors make[3]: *** [Makefile:29: betasym_dist.o] Error 1 make[3]: Leaving directory '/build/reproducible-path/theseus-3.3.0/libdistfit' make[2]: *** [Makefile:30: ldistfit] Error 2 make[2]: Leaving directory '/build/reproducible-path/theseus-3.3.0' dh_auto_build: error: make -j1 INSTALL="install --strip-program=true" returned exit code 2 make[1]: *** [debian/rules:11: override_dh_auto_build] Error 25 make[1]: Leaving directory '/build/reproducible-path/theseus-3.3.0' make: *** [debian/rules:8: binary] Error 2 dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2 ]