Find library via checking gcc/ld search directories

gistfile1.txt

find_lib() {
    _lib="$1"
    _sysroot="$(gcc -print-sysroot)"
    _gcc_searchdirs=$(gcc -print-search-dirs|grep '^libraries'|sed -e 's/^libraries: //g' -e 's/:/ /g' -e "s/=/\$sysroot/g")
    _ld_searchdirs=$(ld --verbose|grep SEARCH_DIR|sed -e 's/SEARCH_DIR("//g' -e 's/");//g' -e "s/=/\$sysroot/g")
    for d in $_gcc_searchdirs $_ld_searchdirs; do
        if [ -f "$d/$_lib" ]; then
            echo -n "$d/$_lib"
            return
        fi
    done
}