Update SCons to latest checkpoint release, 1.2.0.d20090113....

third_party/scons/scons-local/SCons/Variables/PackageVariable.py

 """engine.SCons.Variables.PackageVariable
 
 This file defines the option type for SCons implementing 'package
 activation'.
 
 To be used whenever a 'package' may be enabled/disabled and the
 package path may be specified.
 
 Usage example:
 
@@ skipping 10 matching lines @@
                          'yes'))
   ...
   if env['x11'] == True:
       dir = ... search X11 in some standard places ...
       env['x11'] = dir 
   if env['x11']:
       ... build with x11 ...
 """
 
 #
-# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
+# 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/engine/SCons/Variables/PackageVariable.py 3842 2008/12/20 22:59:52 scons"
+__revision__ = "src/engine/SCons/Variables/PackageVariable.py 3897 2009/01/13 06:45:54 scons"
 
 __all__ = ['PackageVariable',]
 
 import string
 
 import SCons.Errors
 
 __enable_strings  = ('1', 'yes', 'true',  'on', 'enable', 'search')
 __disable_strings = ('0', 'no',  'false', 'off', 'disable')
 
@@ skipping 30 matching lines @@
 
     A 'package list' option may either be 'all', 'none' or a list of
     package names (seperated by space).
     """
     help = string.join(
         (help, '( yes | no | /path/to/%s )' % key),
         '\n    ')
     return (key, help, default,
             lambda k, v, e, f=searchfunc: _validator(k,v,e,f),
             _converter)