Setup libomp for the Mac dependent on the llvm-omp environment

libomp-setup.sh

ROOT_DIR=${PWD}
BUILD_DIR=${ROOT_DIR}/omp-src
LLVM_SRC_DIR=${BUILD_DIR}/llvm
LLVM_BUILD_DIR=${BUILD_DIR}/llvm-build
LIBOMP_SRC_DIR=${BUILD_DIR}/libomp_oss

INTEL_OPENMP_LATEST_BUILD_LINK=https://www.openmprtl.org/sites/default/files/libomp_20131209_oss.tgz
OPENMP_INCLUDE=${LIBOMP_SRC_DIR}/exports/common/include
OPENMP_LIB=${LIBOMP_SRC_DIR}/exports/mac_32e/lib.thin

echo "Downloading OpenMP Runtime Library source code"
if [ ! -d "${LIBOMP_SRC_DIR}" ]; then
   mkdir -p ${LIBOMP_SRC_DIR}
   LIBOMP_TGZ=${BUILD_DIR}/libomp_oss_temp.tgz
   cd ${BUILD_DIR}
   curl ${INTEL_OPENMP_LATEST_BUILD_LINK} -o ${LIBOMP_TGZ}
   gunzip -c ${LIBOMP_TGZ} | tar --strip-components 2 -xopf - -C ${LIBOMP_SRC_DIR}
   rm -rf ${LIBOMP_TGZ}
fi

cd ${LIBOMP_SRC_DIR}
echo "If you do not have GCC installed, you must comment out lines 450-451 in libomp_oss/tools/check-tools.pl.  Have you done this or want to compile anyway?"
select yn in "Yes" "No"; do
    case $yn in
        Yes ) make compiler=clang; break;;
        No ) exit;;
    esac
done

echo "OpenMP Runtime Include Path : " ${OPENMP_INCLUDE}
echo "OpenMP Runtime Lib Path     : " ${OPENMP_LIB}

(echo 'export PATH='${CLANG_BIN}':$PATH';
    echo 'export C_INCLUDE_PATH='${OPENMP_INCLUDE}':${C_INCLUDE_PATH}'; 
    echo 'export CPLUS_INCLUDE_PATH='${OPENMP_INCLUDE}':${CPLUS_INCLUDE_PATH}';
    echo 'export LIBRARY_PATH='${OPENMP_LIB}':${LIBRARY_PATH}';
    echo 'export DYLD_LIBRARY_PATH='${OPENMP_LIB}':${DYLD_LIBRARY_PATH}') >> ${ROOT_DIR}/libomp_bash_profile