CURL() {
    if [[ "$1" = -where ]]; then
        exec echo "$C"
    else
        exec "$C" "$@"
    fi
}

C=$PREFIX/ELF/curl
if [[ -x $C ]]; then
    export LD_LIBRARY_PATH=$PREFIX/lib
    export CURL_CA_BUNDLE=$PREFIX/etc/tls/cacert.pem
    CURL "$@"
else
    PATH="$PATH0"
    C=`$which curl`
        if [[ -z "$C" ]]; then
           echo "curl 命令未找到！" 1>&2
           exit 127
        else
            CURL "$@"
        fi
fi