n3 (found suitable version "3.12.2", minimum required is "3.6") 
-- Found PythonLibs: /usr/lib64/libpython3.12.so
-- Performing Test HAS_FLTO
-- Performing Test HAS_FLTO - Success
-- Found pybind11: /usr/include (found version "2.11.1")
-- Found pybind11: /usr/include;/usr/include/python3.12/pybind11
CMake Warning (dev) at cmake/FindNumPy.cmake:43 (find_package):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.
Call Stack (most recent call first):
  CMakeLists.txt:58 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.
-- Found PythonInterp: /usr/bin/python3 (found version "3.12.2") 
-- Found NumPy: version "1.26.0" /usr/lib64/python3.12/site-packages/numpy/core/include
-- Found numpy: /usr/lib64/python3.12/site-packages/numpy/core/include
CMake Deprecation Warning at test/CMakeLists.txt:10 (cmake_minimum_required):
  Compatibility with CMake < 3.5 will be removed from a future version of
  CMake.
  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.
-- Forcing tests build type to Release
-- Performing Test HAS_CPP14_FLAG
-- Performing Test HAS_CPP14_FLAG - Failed
CMake Error at test/CMakeLists.txt:39 (message):
  Unsupported compiler -- xtensor requires C++14 support!
-- Configuring incomplete, errors occurred!
error: Bad exit status from /var/tmp/rpm-tmp.FqegYN (%build)
    Bad exit status from /var/tmp/rpm-tmp.FqegYN (%build)
RPM build errors:
Child return code was: 1
EXCEPTION: [Error('Command failed: \n # /usr/bin/systemd-nspawn -q -M 51412db5ab8e400780be94ea23029b39 -D /var/lib/mock/f40-build-799951-142610/root -a -u mockbuild --capability=cap_ipc_lock --bind=/tmp/mock-resolv.b9t816o_:/etc/resolv.conf --bind=/dev/btrfs-control --bind=/dev/mapper/control --bind=/dev/fuse --bind=/dev/loop-control --bind=/dev/loop0 --bind=/dev/loop1 --bind=/dev/loop2 --bind=/dev/loop3 --bind=/dev/loop4 --bind=/dev/loop5 --bind=/dev/loop6 --bind=/dev/loop7 --bind=/dev/loop8 --bind=/dev/loop9 --bind=/dev/loop10 --bind=/dev/loop11 --console=pipe --setenv=TERM=vt100 --setenv=SHELL=/bin/bash --setenv=HOME=/builddir --setenv=HOSTNAME=mock --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin --setenv=PROMPT_COMMAND=printf "\\033]0;<mock-chroot>\\007" --setenv=PS1=<mock-chroot> \\s-\\v\\$  --setenv=LANG=C.UTF-8 --resolv-conf=off bash --login -c /usr/bin/rpmbuild -bb --noclean --target riscv64 --nodeps /builddir/build/SPECS/xtensor-python.spec\n', 1)]
Traceback (most recent call last):
  File "/usr/lib/python3.11/site-packages/mockbuild/trace_decorator.py", line 93, in trace
    result = func(*args, **kw)
             ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/mockbuild/util.py", line 597, in do_with_status
    raise exception.Error("Command failed: \n # %s\n%s" % (command, output), child.returncode)
mockbuild.exception.Error: Command failed: 
 # /usr/bin/systemd-nspawn -q -M 51412db5ab8e400780be94ea23029b39 -D /var/lib/mock/f40-build-799951-142610/root -a -u mockbuild --capability=cap_ipc_lock --bind=/tmp/mock-resolv.b9t816o_:/etc/resolv.conf --bind=/dev/btrfs-control --bind=/dev/mapper/control --bind=/dev/fuse --bind=/dev/loop-control --bind=/dev/loop0 --bind=/dev/loop1 --bind=/dev/loop2 --bind=/dev/loop3 --bind=/dev/loop4 --bind=/dev/loop5 --bind=/dev/loop6 --bind=/dev/loop7 --bind=/dev/loop8 --bind=/dev/loop9 --bind=/dev/loop10 --bind=/dev/loop11 --console=pipe --setenv=TERM=vt100 --setenv=SHELL=/bin/bash --setenv=HOME=/builddir --setenv=HOSTNAME=mock --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin --setenv=PROMPT_COMMAND=printf "\033]0;<mock-chroot>\007" --setenv=PS1=<mock-chroot> \s-\v\$  --setenv=LANG=C.UTF-8 --resolv-conf=off bash --login -c /usr/bin/rpmbuild -bb --noclean --target riscv64 --nodeps /builddir/build/SPECS/xtensor-python.spec