ninja windows: fix program path normalization

pylib/gyp/msvs_emulation.py

 # Copyright (c) 2012 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.
 
 """
 This module helps emulate Visual Studio 2008 behavior on top of other
 build systems, primarily ninja.
 """
 
 import os
@@ skipping 41 matching lines @@
 
 
 def EncodeRspFileList(args):
   """Process a list of arguments using QuoteCmdExeArgument."""
   # Note that the first argument is assumed to be the command. Don't add
   # quotes around it because then commands like 'call x.bat' or shell
   # built-ins like 'echo', etc. won't work. Also, don't bother special casing
   # to get quotes around the remainder (after 'call') since other generators
   # and gyp in general don't really support spaces in paths.
   if not args: return ''
-  program = args[0]
+  program = os.path.normpath(args[0])
   return program + ' ' + ' '.join(QuoteForRspFile(arg) for arg in args[1:])
 
 
 def _GenericRetrieve(root, default, path):
   """Given a list of dictionary keys |path| and a tree of dicts |root|, find
   value at path, or return |default| if any of the path doesn't exist."""
   if not root:
     return default
   if not path:
     return root
@@ skipping 390 matching lines @@
   return vs.SetupScript()
 
 def ExpandMacros(string, expansions):
   """Expand $(Variable) per expansions dict. See MsvsSettings.GetVSMacroEnv
   for the canonical way to retrieve a suitable dict."""
   if '$' in string:
     for old, new in expansions.iteritems():
       assert '$(' not in new, new
       string = string.replace(old, new)
   return string