def parse_config(filename, parse_section_names=False):
    config = collections.OrderedDict()
    section_num = 0
    section_comment = None
    with open(filename) as f:
        for line in f:
            m = re.match(r"#define (MICROPY_[A-Z0-9_]+) +(.+)", line)
            if m:
                if section_comment:
                    if parse_section_names:
                        config[f"_section{section_num}"] = section_comment
                    section_num += 1
                    section_comment = None
                config[m.group(1)] = m.group(2)
            else:
                m = re.match(r"/\* (.+) \*/", line)
                if m:
                    section_comment = m.group(1).strip()
                else:
                    m = re.match(r"// (Extended modules)", line)   
                    if m:
                        section_comment = m.group(1)

    return config