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[77.11.142.233]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-454922715b9sm23980838f8f.36.2026.05.10.21.56.20 for <maintonly@bugs.debian.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2026 21:56:21 -0700 (PDT) Sender: Anton Gladky <gladky.anton@gmail.com> Received: by gladklaptop.localdomain (Postfix, from userid 1000) id 3FA84F200B5; Mon, 11 May 2026 06:56:20 +0200 (CEST) Subject: ceres-solver: FTBFS with libeigen3-dev 5.0 (major version transition) From: Anton Gladky <gladk@debian.org> To: <maintonly@bugs.debian.org> User-Agent: mail (GNU Mailutils 3.20) Date: Mon, 11 May 2026 06:56:20 +0200 Message-Id: <20260511045620.3FA84F200B5@gladklaptop.localdomain> Delivered-To: maintonly@bugs.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Package: src:ceres-solver Version: 2.2.0+dfsg-4.1 Severity: important Tags: sid forky ftbfs User: debian-devel@lists.debian.org Usertags: eigen3-5.0 Dear Maintainer, your package depends on libeigen3-dev. The upstream released a new major version of this mathematical library, 5.0.0. Some basic information about new features and changes in this version can be found here: https://libeigen.gitlab.io/releases/5.0/ This is a major version change and may require code changes in packages depending on eigen3. The key breaking changes include: - Minimum required C++ standard is now C++14 - Changes in the build system integration - Some API name changes ceres-solver FTBFS with libeigen3-dev 5.0.1. The full build log is available at: https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3754806/ Here is the most probably relevant part of the failing build log: =========================================== - -- Looking for pow in m - found - -- Detected Ceres version: 2.2.0 from /build/reproducible-path/ceres-solver-2.2.0+dfsg/include/ceres/version.h CMake Error at CMakeLists.txt:185 (find_package): Could not find a configuration file for package "Eigen3" that is compatible with requested version "3.3". The following configuration files were considered but not accepted: /usr/share/eigen3/cmake/Eigen3Config.cmake, version: 5.0.1 The version found is not compatible with the version requested. =========================================== libeigen3-dev_5.0.1-1 is available in experimental. When this package version lands into unstable (probably at the beginning of June 2026), this bug will be increased in severity to serious. Thanks, Anton -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEu71F6oGKuG/2fnKF0+Fzg8+n/wYFAmoBYXMACgkQ0+Fzg8+n /wbwLQ//XC3tAtMKeeF85AUPjmNL8q0K88ZX/kjTiwDnaUe3GzIvhI8rSA2Jq8qt aYc4QAXj21DewySxxJqSnP/yLo9G43xXhuNUXoPwr6a2bPH+5NT9k+4UgBR2nJBu OspS6GgcMLtnz6+63zxfnIwl9Sh5/LSotdY+Ae4iVo3K5EXhChSZ8VtBrwj/mAqP n3fFnJhMzlz4T9lcBIzLgx/+WpYbCwBo4LvueEX3igG0O3og9rjEK/RT68EllGWt 6youZQZx9HBSO+mUevtPZEWj4OONjCduqByucKA02Ze+Dacx6B5VfSRRIEKWL2ij eDrcvwmjL/WPLK7KvACWp09C6ar6uTVrlTLXpTFjmN9aMOWMFqshTbB/sAonSknh l22kmZlIJJcQO6Dn/QjSCN5DQI6aQ3JDf24U8IJuZSlUO0JWsNEfoBuT13Ipfn0G NGmF5NqHRH3V0+Q2W1lc0KsK/gLl6PdaKq/sIeY7ykRYpIRJupV001DubRtHxYPK yffRTnv7mq5AhsSCiZ2E5JJgJpOJtLx5meG6GgZbcWgrwzkTrl3zp2fZnndW1Jbc Rgk7m9aSo/91hTAhFg/aPFGea8nDoGjs9fW7xYee3WrDTBg0cpPKLDOxIcLDO8pu ojJ4Ggasjxb3rrfLhLmWZRiQl7OeOB87RDrEh0UALT0DQ/T/ODI= =wSJf -----END PGP SIGNATURE----- ]