Fix generators to make sure changes to rule inputs trigger correct rebuilds....

pylib/gyp/generator/make.py

 #!/usr/bin/python
 
 # Copyright (c) 2009 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Notes:
 #
 # This is all roughly based on the Makefile system used by the Linux
 # kernel, but is a non-recursive make -- we put the entire dependency
@@ skipping 28 matching lines @@
   'SHARED_LIB_PREFIX': 'lib',
   'STATIC_LIB_SUFFIX': '.a',
   'SHARED_LIB_SUFFIX': '.so',
   'INTERMEDIATE_DIR': '$(obj).$(TOOLSET)/geni',
   'SHARED_INTERMEDIATE_DIR': '$(obj)/gen',
   'PRODUCT_DIR': '$(builddir)',
   'SHARED_LIB_DIR': '$(builddir)/lib.$(TOOLSET)',
   'LIB_DIR': '$(obj).$(TOOLSET)',
   'RULE_INPUT_ROOT': '%(INPUT_ROOT)s',  # This gets expanded by Python.
   'RULE_INPUT_PATH': '$(abspath $<)',
+  'RULE_INPUT_EXT': '$(suffix $<)',
+  'RULE_INPUT_NAME': '$(notdir $<)',
 
-  # These appear unused -- ???
-  'RULE_INPUT_EXT': 'XXXEXT$(suffix $^)',
-  'RULE_INPUT_NAME': 'XXXNAME$(notdir $(basename $^)0',
+  # This appears unused --- ?
   'CONFIGURATION_NAME': '$(BUILDTYPE)',
 }
 
 # Make supports multiple toolsets
 generator_supports_multiple_toolsets = True
 
 def ensure_directory_exists(path):
   dir = os.path.dirname(path)
   if dir and not os.path.exists(dir):
     os.makedirs(dir)
@@ skipping 1062 matching lines @@
         ' '.join(map(Sourceify, build_files)),
         gyp.common.EncodePOSIXShellList(
             [gyp.common.FixIfRelativePath(params['gyp_binary'], options.depth),
              '-fmake'] +
             gyp.RegenerateFlags(options) +
             build_files_args)))
 
   root_makefile.write(SHARED_FOOTER)
 
   root_makefile.close()