text: #! /usr/bin/env python
  #
  # SCons - a Software Constructor
  #
  # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The SCons Foundation
  #
  # 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__ = "src/script/scons.py 4369 2009/09/19 16:58:54 scons"
  
  __version__ = "1.2.0.d20090919"
  
  __build__ = "r4369[MODIFIED]"
  
  __buildsys__ = "scons-dev"
  
  __date__ = "2009/09/19 16:58:54"
  
  __developer__ = "scons"
  
  import os
  import os.path
  import sys
  
  ##############################################################################
  # BEGIN STANDARD SCons SCRIPT HEADER
  #
  # This is the cut-and-paste logic so that a self-contained script can
  # interoperate correctly with different SCons versions and installation
  # locations for the engine.  If you modify anything in this section, you
  # should also change other scripts that use this same header.
  ##############################################################################
  
  # Strip the script directory from sys.path() so on case-insensitive
  # (WIN32) systems Python doesn't think that the "scons" script is the
  # "SCons" package.  Replace it with our own library directories
  # (version-specific first, in case they installed by hand there,
  # followed by generic) so we pick up the right version of the build
  # engine modules if they're in either directory.
  
  script_dir = sys.path[0]
  
  if script_dir in sys.path:
      sys.path.remove(script_dir)
  
  libs = []
  
  if os.environ.has_key("SCONS_LIB_DIR"):
      libs.append(os.environ["SCONS_LIB_DIR"])
  
  local_version = 'scons-local-' + __version__
  local = 'scons-local'
  if script_dir:
      local_version = os.path.join(script_dir, local_version)
      local = os.path.join(script_dir, local)
  libs.append(os.path.abspath(local_version))
  libs.append(os.path.abspath(local))
  
  scons_version = 'scons-%s' % __version__
  
  prefs = []
  
  if sys.platform == 'win32':
      # sys.prefix is (likely) C:\Python*;
      # check only C:\Python*.
      prefs.append(sys.prefix)
      prefs.append(os.path.join(sys.prefix, 'Lib', 'site-packages'))
  else:
      # On other (POSIX) platforms, things are more complicated due to
      # the variety of path names and library locations.  Try to be smart
      # about it.
      if script_dir == 'bin':
          # script_dir is `pwd`/bin;
          # check `pwd`/lib/scons*.
          prefs.append(os.getcwd())
      else:
          if script_dir == '.' or script_dir == '':
              script_dir = os.getcwd()
          head, tail = os.path.split(script_dir)
          if tail == "bin":
              # script_dir is /foo/bin;
              # check /foo/lib/scons*.
              prefs.append(head)
  
      head, tail = os.path.split(sys.prefix)
      if tail == "usr":
          # sys.prefix is /foo/usr;
          # check /foo/usr/lib/scons* first,
          # then /foo/usr/local/lib/scons*.
          prefs.append(sys.prefix)
          prefs.append(os.path.join(sys.prefix, "local"))
      elif tail == "local":
          h, t = os.path.split(head)
          if t == "usr":
              # sys.prefix is /foo/usr/local;
              # check /foo/usr/local/lib/scons* first,
              # then /foo/usr/lib/scons*.
              prefs.append(sys.prefix)
              prefs.append(head)
          else:
              # sys.prefix is /foo/local;
              # check only /foo/local/lib/scons*.
              prefs.append(sys.prefix)
      else:
          # sys.prefix is /foo (ends in neither /usr or /local);
          # check only /foo/lib/scons*.
          prefs.append(sys.prefix)
  
      temp = map(lambda x: os.path.join(x, 'lib'), prefs)
      temp.extend(map(lambda x: os.path.join(x,
                                             'lib',
                                             'python' + sys.version[:3],
                                             'site-packages'),
                             prefs))
      prefs = temp
  
      # Add the parent directory of the current python's library to the
      # preferences.  On SuSE-91/AMD64, for example, this is /usr/lib64,
      # not /usr/lib.
      try:
          libpath = os.__file__
      except AttributeError:
          pass
      else:
          # Split /usr/libfoo/python*/os.py to /usr/libfoo/python*.
          libpath, tail = os.path.split(libpath)
          # Split /usr/libfoo/python* to /usr/libfoo
          libpath, tail = os.path.split(libpath)
          # Check /usr/libfoo/scons*.
          prefs.append(libpath)
  
  # Look first for 'scons-__version__' in all of our preference libs,
  # then for 'scons'.
  libs.extend(map(lambda x: os.path.join(x, scons_version), prefs))
  libs.extend(map(lambda x: os.path.join(x, 'scons'), prefs))
  
  sys.path = libs + sys.path
  
  ##############################################################################
  # END STANDARD SCons SCRIPT HEADER
  ##############################################################################
  
  if __name__ == "__main__":
      import SCons.Script
      # this does all the work, and calls sys.exit
      # with the proper exit status when done.
      SCons.Script.main()
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  