docs: def apply_postcompilers(root, src_list, dst, processors):
      """
      Postcompilers operate based on the destination filename. They operate on a collection
      of files, and are expected to take a list of 1+ inputs and generate a single output.
      """
      dst_file = os.path.join(root, dst)
  
      matches = [(pattern, cmds) for pattern, cmds in processors.iteritems() if fnmatch(dst, pattern)]
      if not matches:
          ensure_dirs(dst_file)
          logger.info('Combining [%s] into [%s]', ' '.join(src_list), dst_file)
          # We should just concatenate the files
          with open(dst_file, 'w') as dst_fp:
              for src in src_list:
                  with open(os.path.join(root, src)) as src_fp:
                      for chunk in src_fp:
                          dst_fp.write(chunk)
          return True
  
      params = get_format_params(dst)
  
      # TODO: probably doesnt play nice everywhere
      src_names = src_list
      for pattern, cmd_list in matches:
          for cmd in cmd_list:
              run_command(cmd, root=root, dst=dst, input=' '.join(src_names), params=params)
              src_names = [dst]
  
      return True