
if [ "$(uname)" == "Darwin" ]; then

    ## Intel compilers
    ## * link against conda Clang for icpc
    #ALLOPTS="-clang-name=${CLANG} -msse4.1 -axCORE-AVX2"
    #ALLOPTSCXX="-clang-name=${CLANG} -clangxx-name=${CLANGXX} -stdlib=libc++ -I${PREFIX}/include/c++/v1 -msse4.1 -axCORE-AVX2 -mmacosx-version-min=10.9"
    #    -DCMAKE_C_COMPILER=icc \
    #    -DCMAKE_CXX_COMPILER=icpc \
    #    -DBUILDNAME="LAB-OSX-clang4.0.1-intel18.0.2-mkl-py${CONDA_PY}-release-conda" \
    #    -DCMAKE_C_FLAGS="${ALLOPTS}" \
    #    -DCMAKE_CXX_FLAGS="${ALLOPTSCXX}" \
    #    -DCMAKE_Fortran_FLAGS="${ALLOPTS}" \

# for omp detection
#rm -rf objdir-clang/ && cmake -H. -Bobjdir-clang -DCMAKE_CXX_COMPILER=${CLANGXX} -DCMAKE_C_COMPILER=${CLANG} -DOpenMP_CXX_FLAG="-fopenmp=libiomp5" -DPYTHON_EXECUTABLE=/Users/github/toolchainconda/envs/tools/bin/python -DLAPACK_LIBRARIES="/Users/github/toolchainconda/envs/tools/lib/libmkl_rt.dylib;/Users/github/toolchainconda/envs/tools/lib/libiomp5.dylib" -DLAPACK_INCLUDE_DIRS=/Users/github/toolchainconda/envs/tools//include/
#need llvm-openmp and intel-openmp

    # configure
    ${BUILD_PREFIX}/bin/cmake \
        -H${SRC_DIR} \
        -Bbuild \
        -DCMAKE_INSTALL_PREFIX=${PREFIX} \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_C_COMPILER=${CLANG} \
        -DCMAKE_CXX_COMPILER=${CLANGXX} \
        -DCMAKE_Fortran_COMPILER=${GFORTRAN} \
        -DCMAKE_C_FLAGS="${CFLAGS} ${OPTS}" \
        -DCMAKE_CXX_FLAGS="${CXXFLAGS} ${OPTS}" \
        -DCMAKE_Fortran_FLAGS="${FFLAGS} ${OPTS}" \
        -DCMAKE_INSTALL_LIBDIR=lib \
        -DPYMOD_INSTALL_LIBDIR="/python${PY_VER}/site-packages" \
        -DMAX_AM_ERI=${MAX_AM_ERI} \
        -DPYTHON_EXECUTABLE=${PYTHON} \
        -DPYTHON_LIBRARY="${PREFIX}/lib/libpython${PY_VER}m${SHLIB_EXT}" \
        -DPYTHON_INCLUDE_DIR="${PREFIX}/include/python${PY_VER}m" \
        -DCMAKE_PREFIX_PATH="${PREFIX}" \
        -DCMAKE_INSIST_FIND_PACKAGE_gau2grid=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_Libint2=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_pybind11=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_Libxc=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_qcelemental=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_qcengine=ON \
        -DENABLE_CheMPS2=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_CheMPS2=ON \
        -DENABLE_dkh=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_dkh=ON \
        -DENABLE_gdma=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_gdma=ON \
        -DENABLE_PCMSolver=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_PCMSolver=ON \
        -DENABLE_simint=ON \
        -DSIMINT_VECTOR="${SIMINT_VECTOR}" \
        -DCMAKE_INSIST_FIND_PACKAGE_simint=ON \
        -DENABLE_OPENMP=ON \
        -DOpenMP_C_FLAG="-fopenmp=libiomp5" \
        -DOpenMP_CXX_FLAG="-fopenmp=libiomp5" \
        -DENABLE_XHOST=OFF \
        -DCMAKE_OSX_DEPLOYMENT_TARGET=''

# nofortran
#        -DENABLE_dkh=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_dkh=ON \
#        -DENABLE_gdma=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_gdma=ON \
#        -DENABLE_PCMSolver=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_PCMSolver=ON \

#        -DBUILD_SHARED_LIBS=ON \
#        -DENABLE_erd=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_erd=ON \

    # build
    cd build
    #make -j${CPU_COUNT}
    make -j4

    # install
    make install

    # test (full suite too stressful for macpsinet)
    #ctest -j${CPU_COUNT} -L quick --test-timeout 3600
    ctest -j4 -L smoke --test-timeout 3600

    # remove conda-build-bound Cache file, to be replaced by psi4-dev
    rm ${PREFIX}/share/cmake/psi4/psi4PluginCache.cmake

    # generalize Targets.cmake files
    sed -i '' "s|/usr/lib/libpthread.dylib|-lpthread|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i '' "s|/usr/lib/libdl.dylib|-ldl|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i '' "s|/usr/lib/libm.dylib|-lm|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
fi

if [ "$(uname)" == "Linux" ]; then

    # GNU compilers
    # LAPACK_INTERJECT="${PREFIX}/lib/libmkl_rt${SHLIB_EXT}"
    #     -DCMAKE_C_COMPILER=${GCC} \
    #     -DCMAKE_CXX_COMPILER=${GXX} \
    #     -DCMAKE_Fortran_COMPILER=${GFORTRAN} \
    #     -DCMAKE_C_FLAGS="${CFLAGS}" \
    #     -DCMAKE_CXX_FLAGS="${CXXFLAGS}" \
    #     -DCMAKE_Fortran_FLAGS="${FFLAGS}" \

    # load Intel compilers
    set +x
    source /psi/gits/software/intel/oneapi/setvars.sh intel64
    set -x

    # link against conda MKL & GCC
    # * static svml fixes "undefined symbol: __svml_pow4_mask_e9" for multiarch
    if [ "$blas_impl" = "mkl" ]; then
        LAPACK_INTERJECT="${PREFIX}/lib/libmkl_rt${SHLIB_EXT};-Wl,-Bstatic;-lsvml;-Wl,-Bdynamic"
    else
        LAPACK_INTERJECT="${PREFIX}/lib/libopenblas${SHLIB_EXT}"
    fi
    ALLOPTS="-gnu-prefix=${HOST}- ${OPTS}"

    # configure
    ${BUILD_PREFIX}/bin/cmake \
        -H${SRC_DIR} \
        -Bbuild \
        -DCMAKE_INSTALL_PREFIX=${PREFIX} \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_C_COMPILER=icc \
        -DCMAKE_CXX_COMPILER=icpc \
        -DCMAKE_Fortran_COMPILER=ifort \
        -DCMAKE_C_FLAGS="${ALLOPTS}" \
        -DCMAKE_CXX_FLAGS="${ALLOPTS}" \
        -DCMAKE_Fortran_FLAGS="${ALLOPTS}" \
        -DCMAKE_INSTALL_LIBDIR=lib \
        -DPYMOD_INSTALL_LIBDIR="/python${PY_VER}/site-packages" \
        -DMAX_AM_ERI=${MAX_AM_ERI} \
        -DPYTHON_EXECUTABLE=${PYTHON} \
        -DPYTHON_LIBRARY="${PREFIX}/lib/libpython${PY_VER}m${SHLIB_EXT}" \
        -DPYTHON_INCLUDE_DIR="${PREFIX}/include/python${PY_VER}m" \
        -DCMAKE_PREFIX_PATH="${PREFIX}" \
        -DCMAKE_INSIST_FIND_PACKAGE_gau2grid=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_Libint2=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_pybind11=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_Libxc=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_qcelemental=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_qcengine=ON \
        -DENABLE_ambit=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_ambit=ON \
        -DENABLE_CheMPS2=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_CheMPS2=ON \
        -DENABLE_dkh=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_dkh=ON \
        -DENABLE_gdma=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_ecpint=ON \
        -DENABLE_ecpint=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_gdma=ON \
        -DENABLE_PCMSolver=ON \
        -DCMAKE_INSIST_FIND_PACKAGE_PCMSolver=ON \
        -DENABLE_simint=ON \
        -DSIMINT_VECTOR=sse \
        -DCMAKE_INSIST_FIND_PACKAGE_simint=ON \
        -DENABLE_OPENMP=ON \
        -DENABLE_XHOST=OFF \
        -DENABLE_GENERIC=OFF \
        -DLAPACK_LIBRARIES="${LAPACK_INTERJECT}" \
        -DSPHINX_ROOT=${PREFIX}

        #-DENABLE_erd=ON \
        #-DCMAKE_INSIST_FIND_PACKAGE_erd=ON \
        #-DCMAKE_INSIST_FIND_PACKAGE_GTFock=ON \

    # build
    cd build
    make -j${CPU_COUNT}

    # install
    make install

    # remove conda-build-bound Cache file, to be replaced by psi4-dev
    rm ${PREFIX}/share/cmake/psi4/psi4PluginCache.cmake

    # generalize Targets.cmake files
    sed -i "s|${BUILD_PREFIX}/${HOST}/sysroot/usr/lib/librt.so|-lrt|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i "s|${BUILD_PREFIX}/${HOST}/sysroot/usr/lib/libpthread.so|-lpthread|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i "s|${BUILD_PREFIX}/${HOST}/sysroot/usr/lib/libdl.so|-ldl|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i "s|${BUILD_PREFIX}/${HOST}/sysroot/usr/lib/libm.so|-lm|g" ${PREFIX}/share/cmake/TargetHDF5/TargetHDF5Targets.cmake
    sed -i "s|;-Wl,-Bstatic;-lsvml;-Wl,-Bdynamic||g" ${PREFIX}/share/cmake/TargetLAPACK/TargetLAPACKTargets.cmake
fi

# NOTES
# -----

# * old full ctests
#    # test
#    # * full PREFIX is too long for shebang (in bin/psi4 tests), so use env python just for tests
#    # * this doesn't work for DDD, so comment psi4_reserve, inclusive
#    mv stage/bin/psi4 stage/bin/psi4_reserve
#    echo "#! /usr/bin/env python" > stage/bin/psi4
#    cat stage/bin/psi4_reserve >> stage/bin/psi4
#    chmod u+x stage/bin/psi4
#    stage/bin/psi4 ../tests/tu1-h2o-energy/input.dat
#    MKL_CBWR=AVX ctest -j${CPU_COUNT}  --test-timeout 3600 #-L quick
#    mv -f stage/bin/psi4_reserve stage/bin/psi4

# * old dashboard upload
#   MKL_CBWR=AVX ctest -M Nightly -T Test -T Submit -j${CPU_COUNT} #-L quick
#        -DBUILDNAME="LAB-RHEL7-gcc7.3-intel18.0.3-mkl-py${CONDA_PY}-release-conda" \
#        -DSITE="gatech-conda" \
#        -DBUILDNAME="LAB-OSX-clang4.0.1-omp-mkl-py${CONDA_PY}-release-conda" \
#        -DSITE=gatech-mac-conda \
# * source /theoryfs2/common/software/intel2019/bin/compilervars.sh intel64

# * seems to slow down tests  #export PSI_SCRATCH=/scratch/psilocaluser/

# RIP c-side EFP
#        -DENABLE_libefp=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_libefp=ON \
#        -DCMAKE_INSIST_FIND_PACKAGE_pylibefp=ON \

    #sed -i "s|/opt/anaconda1anaconda2anaconda3|${PREFIX}|g" ${PREFIX}/share/psi4/python/pcm_placeholder.py
    #LD_LIBRARY_PATH=${PREFIX}/lib:$LD_LIBRARY_PATH \
    #     PYTHONPATH=${PREFIX}/bin:${PREFIX}/lib${PYMOD_INSTALL_LIBDIR}:$PYTHONPATH \
    #           PATH=${PREFIX}/bin:$PATH \

    # * HOST=x86_64-conda_cos6-linux-gnu
    #OPTS="-gnu-prefix=x86_64-conda_cos6-linux-gnu- -msse2 -axCORE-AVX2,AVX"

    #sed -i.bak "s|/opt/anaconda1anaconda2anaconda3|${PREFIX}|g" ${PREFIX}/share/psi4/python/pcm_placeholder.py
    #DYLD_LIBRARY_PATH=${PREFIX}/lib:$DYLD_LIBRARY_PATH \
    #       PYTHONPATH=${PREFIX}/bin:${PREFIX}/lib/python2.7/site-packages:$PYTHONPATH \
    #             PATH=${PREFIX}/bin:$PATH \

# * -DENABLE_PLUGIN_TESTING=ON \ is a casualty of the really long prefix

# * downstream (v2, sns) are built and tested downstream
# * downstream py (sns) won't register properly anyways w/o psi4 and CM config time

# * cythonize #cy
#   -DENABLE_CYTHONIZE=ON \

