text: #!/usr/bin/env python
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  __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  
  """
  Verify that two different environments can be used for the same target,
  so long as the actions have the same signature; a warning is generated.
  """
  
  import TestSCons
  
  test = TestSCons.TestSCons(match=TestSCons.match_re)
  
  test.write('SConstruct', """\
  def build(env, target, source):
      file = open(str(target[0]), 'wb')
      for s in source:
          file.write(open(str(s), 'rb').read())
  
  B = Builder(action=build, multi=1)
  env = Environment(BUILDERS = { 'B' : B })
  env2 = env.Clone(DIFFERENT_VARIABLE = 'true')
  env.B(target = 'file5.out', source = 'file5a.in')
  env2.B(target = 'file5.out', source = 'file5b.in')
  """)
  
  test.write('file5a.in', 'file5a.in\n')
  test.write('file5b.in', 'file5b.in\n')
  
  expect = TestSCons.re_escape("""
  scons: warning: Two different environments were specified for target file5.out,
  \tbut they appear to have the same action: build(target, source, env)
  """) + TestSCons.file_expr
  
  test.run(arguments='file5.out', stderr=expect)
  
  test.must_match('file5.out', "file5a.in\nfile5b.in\n")
  
  test.pass_test()
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  