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

third_party/scons/scons-local/SCons/Tool/m4.py

 """SCons.Tool.m4
 
 Tool-specific initialization for m4.
 
 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 (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/Tool/m4.py 3842 2008/12/20 22:59:52 scons"
+__revision__ = "src/engine/SCons/Tool/m4.py 3897 2009/01/13 06:45:54 scons"
 
 import SCons.Action
 import SCons.Builder
 import SCons.Util
 
 def generate(env):
     """Add Builders and construction variables for m4 to an Environment."""
     M4Action = SCons.Action.Action('$M4COM', '$M4COMSTR')
     bld = SCons.Builder.Builder(action = M4Action, src_suffix = '.m4')
 
     env['BUILDERS']['M4'] = bld
 
     # .m4 files might include other files, and it would be pretty hard
     # to write a scanner for it, so let's just cd to the dir of the m4
     # file and run from there.
     # The src_suffix setup is like so: file.c.m4 -> file.c,
     # file.cpp.m4 -> file.cpp etc.
     env['M4']      = 'm4'
     env['M4FLAGS'] = SCons.Util.CLVar('-E')
     env['M4COM']   = 'cd ${SOURCE.rsrcdir} && $M4 $M4FLAGS < ${SOURCE.file} > ${TARGET.abspath}'
 
 def exists(env):
     return env.Detect('m4')