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[77.11.142.233]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6fff9ab8sm168513125e9.2.2026.05.10.22.29.11 for <maintonly@bugs.debian.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2026 22:29:11 -0700 (PDT) Sender: Anton Gladky <gladky.anton@gmail.com> Received: by gladklaptop.localdomain (Postfix, from userid 1000) id 17934F200B5; Mon, 11 May 2026 07:29:11 +0200 (CEST) Subject: nanopolish: 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 07:29:11 +0200 Message-Id: <20260511052911.17934F200B5@gladklaptop.localdomain> Delivered-To: maintonly@bugs.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Package: src:nanopolish Version: 0.14.0-2 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 nanopolish FTBFS with libeigen3-dev 5.0.1. The full build log is available at: https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3759200/ Here is the most probably relevant part of the failing build log: =========================================== g++ -o src/common/nanopolish_variant.o -c -g -O2 -ffile-prefix-map=/build/reproducible-path/nanopolish-0.14.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -O3 -flto -std=c++11 -fopenmp -fsigned-char -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/hdf5/serial -I/usr/include/eigen3 -I/usr/include/minimap2 -I/usr/include/minimap2 -I./src -I./src/hmm -I./src/thirdparty -I./src/thirdparty/scrappie -I./src/common -I./src/alignment -I./src/pore_model -I./src/io -I./src/basemods -fPIC src/common/nanopolish_variant.cpp In file included from /usr/include/eigen3/Eigen/Core:22, from /usr/include/eigen3/Eigen/Dense:1, from src/nanopolish_methyltrain.cpp:48: /usr/include/eigen3/Eigen/src/Core/util/Macros.h:749:2: error: #error Eigen requires at least c++14 support. 749 | #error Eigen requires at least c++14 support. | ^~~~~ =========================================== 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/wYFAmoBaSYACgkQ0+Fzg8+n /wYqrg/6Aqpg6kIzLrrnslMHqvuXl3jRizrMm4gq8H7mydXz518eHiZSlTbBKvXp aZQ40aAVp6M8HcMf5ym68zpazJQnPKjoe7Lfye8p/GWzZFO/ptWZuin/E4lbj2u5 6db1DQACmesgsdALm077zpvmVfYJjLlO2qOKvZjXkA20A4UnXKteIzoNJf54ODIf Eludpw5qindpia7V5h7BjRCd9ZX/feJPDB0atm9BUvueHhB7IKtvXKtycFbWBRO9 wJOj7+r/ULXU9YxtxOsiCmNp2vYMtXp6rfhoJGACwsyF7u28lWH9+PM47yHDKjL1 EQqfPQLoSfTZqcNHGfl0kOo/oZHFFHNngcxO9i+wasMMsR5hSc78z054qwqarrJS l7HX26vJkp0iqvTb0370f5h3vu7p86TQ4uIVgZar8wdfDnLSQWAD353jarKy0LBb nDg9kArq38AvTEgocq8j/6TlvN+R685caMDpjoW5h0utiZownWCi6jGadUb4tm4Q 88kIX997GQmKkPmqPN4o5s+0iZbTSYgEI+cKa7JzsIyeXZ861aP9kWcy41969D+B KAxmcUrZTYpWwLRGy3/bU2x+34EXkn+KJcmyVrbOa9EXnsvHI8/gs9T56qdwsSeU MrWNulSIrM2iLoTjoMP8E1oBC5HNxwXT95PSTJJfBtUrvgi2mqo= =4AH2 -----END PGP SIGNATURE----- ]