| .build:linux:base: | 
 |   stage: build | 
 |   image: ubuntu:18.04 | 
 |   before_script: | 
 |     - apt-get update -y | 
 |     - apt-get install -y --no-install-recommends software-properties-common | 
 |     - add-apt-repository -y  ppa:ubuntu-toolchain-r/test | 
 |     - apt-get update | 
 |     - apt-get install --no-install-recommends -y ${EIGEN_CI_CXX_COMPILER} | 
 |       ${EIGEN_CI_CC_COMPILER} cmake ninja-build | 
 |   script: | 
 |     - mkdir -p ${BUILDDIR} && cd ${BUILDDIR} | 
 |     - CXX=${EIGEN_CI_CXX_COMPILER} CC=${EIGEN_CI_CC_COMPILER} cmake -G | 
 |       ${EIGEN_CI_CMAKE_GENEATOR} -DEIGEN_TEST_CXX11=${EIGEN_TEST_CXX11} | 
 |       ${EIGEN_CI_ADDITIONAL_ARGS} .. | 
 |     - cmake --build . --target buildtests | 
 |   artifacts: | 
 |     name: "$CI_JOB_NAME-$CI_COMMIT_REF_NAME" | 
 |     paths: | 
 |       - ${BUILDDIR}/ | 
 |     expire_in: 5 days | 
 |   only: | 
 |     - schedules | 
 |  | 
 | ######## x86-64 ################################################################ | 
 | # # GCC-4.8 (the oldest compiler we support) | 
 | # build:x86-64:linux:gcc-4.8:cxx11-on: | 
 | #   extends: .build:linux:base | 
 | #   variables: | 
 | #     EIGEN_CI_CXX_COMPILER: "g++-4.8" | 
 | #     EIGEN_CI_CC_COMPILER: "gcc-4.8" | 
 | #     EIGEN_TEST_CXX11: "on" | 
 | #   tags: | 
 | #     - eigen-runner | 
 | #     - linux | 
 | #     - x86-64 | 
 |  | 
 | # GCC-9 | 
 | build:x86-64:linux:gcc-9:cxx11-on: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "g++-9" | 
 |     EIGEN_CI_CC_COMPILER: "gcc-9" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - x86-64 | 
 |  | 
 | # GCC-10 | 
 | build:x86-64:linux:gcc-10:cxx11-on: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "g++-10" | 
 |     EIGEN_CI_CC_COMPILER: "gcc-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - x86-64 | 
 |  | 
 | # Clang-10 | 
 | build:x86-64:linux:clang-10:cxx11-on: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "clang++-10" | 
 |     EIGEN_CI_CC_COMPILER: "clang-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - x86-64 | 
 |  | 
 | # Clang-10, AVX512 | 
 | build:x86-64:linux:clang-10:cxx11-on:avx512: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "clang++-10" | 
 |     EIGEN_CI_CC_COMPILER: "clang-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |     EIGEN_TEST_AVX512DQ: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - x86-64 | 
 |     - avx512 | 
 |  | 
 | ######## AArch64 ############################################################### | 
 | # GCC-10 | 
 | build:aarch64:linux:gcc-10:cxx11-on: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "g++-10" | 
 |     EIGEN_CI_CC_COMPILER: "gcc-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - aarch64 | 
 |  | 
 | # Clang-10 | 
 | build:aarch64:linux:clang-10:cxx11-on: | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "clang++-10" | 
 |     EIGEN_CI_CC_COMPILER: "clang-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - aarch64 | 
 |  | 
 | ######## ppc64le ############################################################### | 
 | # Currently all ppc64le jobs are allowed to fail | 
 |  | 
 | # GCC-10 | 
 | build:ppc64le:linux:gcc-10:cxx11-on: | 
 |   allow_failure: true | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "g++-10" | 
 |     EIGEN_CI_CC_COMPILER: "gcc-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |     EIGEN_CI_ADDITIONAL_ARGS: "-DCMAKE_CXX_FLAGS='-DEIGEN_ALTIVEC_DISABLE_MMA'" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - ppc64le | 
 |  | 
 | # Clang-10 | 
 | build:ppc64le:linux:clang-10:cxx11-on: | 
 |   allow_failure: true | 
 |   extends: .build:linux:base | 
 |   variables: | 
 |     EIGEN_CI_CXX_COMPILER: "clang++-10" | 
 |     EIGEN_CI_CC_COMPILER: "clang-10" | 
 |     EIGEN_TEST_CXX11: "on" | 
 |   tags: | 
 |     - eigen-runner | 
 |     - linux | 
 |     - ppc64le |