Description of problem: eigen3-3.3.9-1.fc34 FTBFS, probably started with gcc-11.0.0-0.14.fc34 Version-Release number of selected component (if applicable): eigen3-3.3.9-1.fc34 with gcc-11.0.0-0.14.fc34 Actual results: Parent task https://koji.fedoraproject.org/koji/taskinfo?taskID=59956593 x86_64 task https://koji.fedoraproject.org/koji/taskinfo?taskID=59956632 ======================================================================= /builddir/build/BUILD/eigen-3.3.9/Eigen/src/Core/MathFunctions.h: In instantiation of 'static Scalar Eigen::internal::log1p_impl<Scalar>::run(const Scalar&) [with Scalar = float]': /builddir/build/BUILD/eigen-3.3.9/Eigen/src/Core/MathFunctions.h:943:49: required from 'typename Eigen::internal::log1p_retval<typename Eigen::internal::global_math_functions_filtering_base<Scalar>::type>::type Eigen::numext ::log1p(const Scalar&) [with Scalar = float; typename Eigen::internal::log1p_retval<typename Eigen::internal::global_math_functions_filtering_base<Scalar>::type>::type = float; typename Eigen::internal::global_math_functions_f iltering_base<Scalar>::type = float]' /builddir/build/BUILD/eigen-3.3.9/Eigen/src/Core/arch/CUDA/Half.h:466:37: required from here /builddir/build/BUILD/eigen-3.3.9/Eigen/src/Core/MathFunctions.h:489:25: error: 'Scalar Eigen::internal::std_fallback::log1p(const Scalar&)' conflicts with a previous declaration 489 | using std_fallback::log1p; | ^~~~~ In file included from /usr/include/c++/11/complex:44, from /builddir/build/BUILD/eigen-3.3.9/Eigen/Core:96, from /builddir/build/BUILD/eigen-3.3.9/doc/examples/nullary_indexing.cpp:1: /usr/include/c++/11/cmath:1563:5: note: previous declaration 'namespace std { }::log1p' 1563 | log1p(_Tp __x) | ^~~~~ ======================================================================= Additional info: Probably the following must be backported: https://gitlab.com/libeigen/eigen/-/commit/d55d392e7b1136655b4223bea8e99cb2fe0a8afd
Oops... actually this report is against eigen3, but blender fails to build due to the same reason...
Thanks for the report. Seems like blender have a technical debt with respect to unbundling... Once blender uses a fixed system version, it will be fine.
Building: https://koji.fedoraproject.org/koji/taskinfo?taskID=60030227