Your message dated Wed, 10 Jun 2026 15:43:23 +0200
with message-id <[email protected]>
and subject line Closing manually (specified wrong bug number in changelog)
has caused the Debian Bug report #1136240,
regarding iqtree: FTBFS with libeigen3-dev 5.0 (major version transition)
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1136240: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1136240
Debian Bug Tracking System
Contact [email protected] with problems
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Hash: SHA512
Package: src:iqtree
Version: 2.4.0+dfsg-1
Severity: important
Tags: sid forky ftbfs
User: [email protected]
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
iqtree FTBFS with libeigen3-dev 5.0.1. The full build log is available at:
https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3756381/
Here is the most probably relevant part of the failing build log:
===========================================
- -- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:88 (message):
Eigen3 library not found. Either install it or rerun cmake with
-DEIGEN3_INCLUDE_DIR=<installed_eigen3_dir>
- -- Configuring incomplete, errors occurred!
cd build.omp && tail -v -n \+0 CMakeCache.txt
==> CMakeCache.txt <==
===========================================
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
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