win: Add support for VS2015

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 441 matching lines @@
     cl('ExceptionHandling', map={'1': 'sc','2': 'a'}, prefix='/EH')
     cl('DefaultCharIsUnsigned', map={'true': '/J'})
     cl('TreatWChar_tAsBuiltInType',
         map={'false': '-', 'true': ''}, prefix='/Zc:wchar_t')
     cl('EnablePREfast', map={'true': '/analyze'})
     cl('AdditionalOptions', prefix='')
     cl('EnableEnhancedInstructionSet',
        map={'1': 'SSE', '2': 'SSE2', '3': 'AVX', '4': 'IA32'}, prefix='/arch:')
     cflags.extend(['/FI' + f for f in self._Setting(
         ('VCCLCompilerTool', 'ForcedIncludeFiles'), config, default=[])])
-    if self.vs_version.short_name in ('2013', '2013e'):
+    if self.vs_version.short_name in ('2013', '2013e', '2015'):
       # New flag required in 2013 to maintain previous PDB behavior.
       cflags.append('/FS')

[Shezan Baig (Bloomberg), 2014/12/09 20:30:00]

I wonder if we should change the pdb path we pass to cl.exe to be unique for
each source file, that way we don't need to synchronize writing to it.  Just
wondering if you have experimented with that?

     # ninja handles parallelism by itself, don't have the compiler do it too.
     cflags = filter(lambda x: not x.startswith('/MP'), cflags)
     return cflags
 
   def _GetPchFlags(self, config, extension):
     """Get the flags to be added to the cflags for precompiled header support.
     """
     config = self._TargetConfig(config)
     # The PCH is only built once by a particular source file. Usage of PCH must
     # only be for the same language (i.e. C vs. C++), so only include the pch
@@ skipping 578 matching lines @@
 
   # To determine processor word size on Windows, in addition to checking
   # PROCESSOR_ARCHITECTURE (which reflects the word size of the current
   # process), it is also necessary to check PROCESSOR_ARCHITEW6432 (which
   # contains the actual word size of the system when running thru WOW64).
   if ('64' in os.environ.get('PROCESSOR_ARCHITECTURE', '') or
       '64' in os.environ.get('PROCESSOR_ARCHITEW6432', '')):
     default_variables['MSVS_OS_BITS'] = 64
   else:
     default_variables['MSVS_OS_BITS'] = 32