old_contents: """SCons.Tool.latex
  
  Tool-specific initialization for LaTeX.
  
  There normally shouldn't be any need to import this module directly.
  It will usually be imported through the generic SCons.Tool.Tool()
  selection method.
  
  """
  
  #
  # __COPYRIGHT__
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  #
  
  __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  
  import SCons.Action
  import SCons.Defaults
  import SCons.Scanner.LaTeX
  import SCons.Util
  import SCons.Tool
  import SCons.Tool.tex
  
  LaTeXAction = None
  
  def LaTeXAuxFunction(target = None, source= None, env=None):
      result = SCons.Tool.tex.InternalLaTeXAuxAction( LaTeXAction, target, source, env )
      return result
  
  LaTeXAuxAction = SCons.Action.Action(LaTeXAuxFunction,
                                strfunction=SCons.Tool.tex.TeXLaTeXStrFunction)
  
  def generate(env):
      """Add Builders and construction variables for LaTeX to an Environment."""
      global LaTeXAction
      if LaTeXAction is None:
          LaTeXAction = SCons.Action.Action('$LATEXCOM', '$LATEXCOMSTR')
  
      import dvi
      dvi.generate(env)
  
      bld = env['BUILDERS']['DVI']
      bld.add_action('.ltx', LaTeXAuxAction)
      bld.add_action('.latex', LaTeXAuxAction)
      bld.add_emitter('.ltx', SCons.Tool.tex.tex_emitter)
      bld.add_emitter('.latex', SCons.Tool.tex.tex_emitter)
  
      env['LATEX']        = 'latex'
      env['LATEXFLAGS']   = SCons.Util.CLVar('-interaction=nonstopmode')
      env['LATEXCOM']     = 'cd ${TARGET.dir} && $LATEX $LATEXFLAGS ${SOURCE.file}'
      env['LATEXRETRIES'] = 3
  
  def exists(env):
      return env.Detect('latex')
  
new_contents: """SCons.Tool.latex
  
  Tool-specific initialization for LaTeX.
  
  There normally shouldn't be any need to import this module directly.
  It will usually be imported through the generic SCons.Tool.Tool()
  selection method.
  
  """
  
  #
  # __COPYRIGHT__
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  #
  
  __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  
  import SCons.Action
  import SCons.Defaults
  import SCons.Scanner.LaTeX
  import SCons.Util
  import SCons.Tool
  import SCons.Tool.tex
  
  LaTeXAction = None
  
  def LaTeXAuxFunction(target = None, source= None, env=None):
      result = SCons.Tool.tex.InternalLaTeXAuxAction( LaTeXAction, target, source, env )
      return result
  
  LaTeXAuxAction = SCons.Action.Action(LaTeXAuxFunction,
                                strfunction=SCons.Tool.tex.TeXLaTeXStrFunction)
  
  def generate(env):
      """Add Builders and construction variables for LaTeX to an Environment."""
      global LaTeXAction
      if LaTeXAction is None:
          LaTeXAction = SCons.Action.Action('$LATEXCOM', '$LATEXCOMSTR')
  
      import dvi
      dvi.generate(env)
  
      import pdf
      pdf.generate(env)
  
      bld = env['BUILDERS']['DVI']
      bld.add_action('.ltx', LaTeXAuxAction)
      bld.add_action('.latex', LaTeXAuxAction)
      bld.add_emitter('.ltx', SCons.Tool.tex.tex_emitter)
      bld.add_emitter('.latex', SCons.Tool.tex.tex_emitter)
  
      env['LATEX']        = 'latex'
      env['LATEXFLAGS']   = SCons.Util.CLVar('-interaction=nonstopmode')
      env['LATEXCOM']     = 'cd ${TARGET.dir} && $LATEX $LATEXFLAGS ${SOURCE.file}'
      env['LATEXRETRIES'] = 3
  
  def exists(env):
      return env.Detect('latex')
  
subject: Make the test/TEX/LATEX*py scripts work even on systems that don't have all the right tools installed.