class_docstr: Abstract base class to define the interface that must be implemented
  by real compiler classes.  Also has some utility methods used by
  several compiler classes.
  
  The basic idea behind a compiler abstraction class is that each
  instance can be used for all the compile/link steps in building a
  single project.  Thus, attributes common to all of those compile and
  link steps -- include directories, macros to define, libraries to link
  against, etc. -- are attributes of the compiler instance.  To allow for
  variability in how individual files are treated, most of those
  attributes may be varied on a per-compilation or per-link basis.
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docstr: Return true if we need to relink the files listed in 'objects'
  to recreate 'output_file'.
code: def _need_link(self, objects, output_file):
      """Return true if we need to relink the files listed in 'objects'
      to recreate 'output_file'.
      """
      if self.force:
          return True
      else:
          if self.dry_run:
              newer = newer_group(objects, output_file, missing="newer")
          else:
              newer = newer_group(objects, output_file)
          return newer
  
imports: import sys, os, re
  from distutils.errors import *
  from distutils.spawn import spawn
  from distutils.file_util import move_file
  from distutils.dir_util import mkpath
  from distutils.dep_util import newer_group
  from distutils.util import split_quoted, execute
  from distutils import log
label_desc: Use image node_id 24 for calling the CCompiler obj's underlying member method code with example usage: obj._need_link(objects, output_file) and returns: True, newer