>>> eigen 3.4.0 Downloading
wget --passive-ftp -nd -t 3 -O '/home/autobuild/autobuild/instance-7/output-1/build/.eigen-3.4.0.tar.bz2.KkUAfq/output' 'https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.bz2' 
--2023-02-08 17:39:53--  https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.bz2
Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt'
Resolving gitlab.com (gitlab.com)... 172.65.251.78, 2606:4700:90:0:f22e:fbec:5bed:a9b9
Connecting to gitlab.com (gitlab.com)|172.65.251.78|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/octet-stream]
Saving to: '/home/autobuild/autobuild/instance-7/output-1/build/.eigen-3.4.0.tar.bz2.KkUAfq/output'

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2023-02-08 17:39:53 (16.0 MB/s) - '/home/autobuild/autobuild/instance-7/output-1/build/.eigen-3.4.0.tar.bz2.KkUAfq/output' saved [2143091]

eigen-3.4.0.tar.bz2: OK (sha256: b4c198460eba6f28d34894e3a5710998818515104d6e74e5cc331ce31e46e626)
>>> eigen 3.4.0 Extracting
bzcat /home/autobuild/autobuild/instance-7/dl/eigen/eigen-3.4.0.tar.bz2 | /home/autobuild/autobuild/instance-7/output-1/host/bin/tar --strip-components=1 -C /home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0   -xf -
>>> eigen 3.4.0 Patching

Applying 0001-Adds-new-CMake-Options-for-controlling-build-components.patch using patch: 
patching file CMakeLists.txt
Hunk #1 succeeded at 495 (offset 18 lines).
Hunk #2 succeeded at 615 (offset 1 line).
Hunk #3 succeeded at 652 (offset -8 lines).
patching file blas/CMakeLists.txt
patching file lapack/CMakeLists.txt
Hunk #1 succeeded at 2 with fuzz 1 (offset 1 line).
Hunk #2 succeeded at 452 (offset -7 lines).
>>> eigen 3.4.0 Configuring
(mkdir -p /home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0//buildroot-build && cd /home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0//buildroot-build && rm -f CMakeCache.txt && PATH="/home/autobuild/autobuild/instance-7/output-1/host/bin:/home/autobuild/autobuild/instance-7/output-1/host/sbin:/home/autobuild/make:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl"  /home/autobuild/autobuild/instance-7/output-1/host/bin/cmake /home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0/ -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/autobuild/autobuild/instance-7/output-1/host/share/buildroot/toolchainfile.cmake" -DCMAKE_INSTALL_PREFIX="/usr" -DCMAKE_INSTALL_RUNSTATEDIR="/run" -DCMAKE_COLOR_MAKEFILE=OFF -DBUILD_DOC=OFF -DBUILD_DOCS=OFF -DBUILD_EXAMPLE=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TEST=OFF -DBUILD_TESTS=OFF -DBUILD_TESTING=OFF -DBUILD_SHARED_LIBS=OFF  -DPKGCONFIG_INSTALL_DIR=/usr/lib/pkgconfig -DEIGEN_BUILD_BLAS=OFF -DEIGEN_BUILD_LAPACK=OFF )
-- The C compiler identification is GNU 10.4.0
-- The CXX compiler identification is GNU 10.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /home/autobuild/autobuild/instance-7/output-1/host/bin/riscv64-buildroot-linux-uclibc-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Check for working CXX compiler: /home/autobuild/autobuild/instance-7/output-1/host/bin/riscv64-buildroot-linux-uclibc-g++
-- Check for working CXX compiler: /home/autobuild/autobuild/instance-7/output-1/host/bin/riscv64-buildroot-linux-uclibc-g++ - works
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test EIGEN_COMPILER_SUPPORT_CPP11
-- Performing Test EIGEN_COMPILER_SUPPORT_CPP11 - Success
-- Performing Test COMPILER_SUPPORT_std=cpp03
-- Performing Test COMPILER_SUPPORT_std=cpp03 - Success
-- Performing Test standard_math_library_linked_to_automatically
-- Performing Test standard_math_library_linked_to_automatically - Failed
-- Performing Test standard_math_library_linked_to_as_m
-- Performing Test standard_math_library_linked_to_as_m - Failed
CMake Error at CMakeLists.txt:108 (message):
  Can't link to the standard math library.  Please report to the Eigen
  developers, telling them about your platform.


-- Configuring incomplete, errors occurred!
See also "/home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0/buildroot-build/CMakeFiles/CMakeOutput.log".
See also "/home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0/buildroot-build/CMakeFiles/CMakeError.log".
make: *** [package/pkg-generic.mk:283: /home/autobuild/autobuild/instance-7/output-1/build/eigen-3.4.0/.stamp_configured] Error 1
make: Leaving directory '/home/autobuild/autobuild/instance-7/buildroot'