ar/nm/ranlib wrapper for LTO

wrapper.sh

#!/bin/sh

DEBUG=0

[ "${DEBUG}" -eq 1 ] && set -x

CC=${CC:-"/usr/bin/gcc"}
lto_wrapper="$( $CC -v 2>&1 | /bin/awk -F= '/COLLECT_LTO_WRAPPER/{print $2}' )"
plugin_dir="${lto_wrapper%/*}"
util="${0##*/}"

# ar requires cmd to be before --plugin
cmd=""
if [ "x${util%ar}" != "x${util}" ]; then
    cmd="$1"
    shift
fi

run() {
    if [ "${DEBUG}" -eq 1 ] ;then
        for p in "${@}" ;do
            printf "'%s' " "$p" >> /tmp/lto_wrapper.log
        done
        echo "" >> /tmp/lto_wrapper.log
    fi

    "$@"
}

run /usr/bin/$util $cmd --plugin "${plugin_dir}/liblto_plugin.so" "$@"