Base platform sdk selection on a variable.

build/common.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 799 matching lines @@
 
     # The desired version of Windows SDK can be set in ~/.gyp/include.gypi.
     'msbuild_toolset%': '',
 
     # Native Client is enabled by default.
     'disable_nacl%': 0,
 
     'sas_dll_exists': '<!(python <(DEPTH)/build/dir_exists.py <(sas_dll_path))',
     'wix_exists': '<!(python <(DEPTH)/build/dir_exists.py <(wix_path))',
 
+    'windows_sdk_path%': '<(DEPTH)/third_party/platformsdk_win8/files',
+
     'conditions': [
       ['os_posix==1 and OS!="mac" and OS!="ios"', {
         # This will set gcc_version to XY if you are running gcc X.Y.*.
         # This is used to tweak build flags for gcc 4.4.
         'gcc_version%': '<!(python <(DEPTH)/build/compiler_version.py)',
         # Figure out the python architecture to decide if we build pyauto.
         'python_arch%': '<!(<(DEPTH)/build/linux/python_arch.sh <(sysroot)/usr/<(system_libdir)/libpython<(python_ver).so.1.0)',
         'conditions': [
           ['branding=="Chrome"', {
             'linux_breakpad%': 1,
@@ skipping 845 matching lines @@
         },
         'msvs_configuration_platform': 'Win32',
       },
       'x64_Base': {
         'abstract': 1,
         'msvs_configuration_platform': 'x64',
         'msvs_settings': {
           'VCLinkerTool': {
             'TargetMachine': '17', # x86 - 64
             'AdditionalLibraryDirectories!':
-              ['<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x86'],
+              ['<(windows_sdk_path)/Lib/win8/um/x86'],
             'AdditionalLibraryDirectories':
-              ['<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x64'],
+              ['<(windows_sdk_path)/Lib/win8/um/x64'],
           },
           'VCLibrarianTool': {
             'AdditionalLibraryDirectories!':
-              ['<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x86'],
+              ['<(windows_sdk_path)/Lib/win8/um/x86'],
             'AdditionalLibraryDirectories':
-              ['<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x64'],
+              ['<(windows_sdk_path)/Lib/win8/um/x64'],
           },
         },
         'defines': [
           # Not sure if tcmalloc works on 64-bit Windows.
           'NO_TCMALLOC',
         ],
       },
       'Debug_Base': {
         'abstract': 1,
         'defines': [
@@ skipping 1295 matching lines @@
               '_HAS_TR1=0',
             ],
           }],
           ['secure_atl', {
             'defines': [
               '_SECURE_ATL',
             ],
           }],
         ],
         'msvs_system_include_dirs': [
-          '<(DEPTH)/third_party/platformsdk_win8/files/Include/shared',
-          '<(DEPTH)/third_party/platformsdk_win8/files/Include/um',
-          '<(DEPTH)/third_party/platformsdk_win8/files/Include/winrt',
+          '<(windows_sdk_path)/Include/shared',
+          '<(windows_sdk_path)/Include/um',
+          '<(windows_sdk_path)/Include/winrt',
           '<(DEPTH)/third_party/directxsdk/files/Include',
           '$(VSInstallDir)/VC/atlmfc/include',
         ],
         'msvs_cygwin_dirs': ['<(DEPTH)/third_party/cygwin'],
         'msvs_disabled_warnings': [4351, 4396, 4503, 4819,
           # TODO(maruel): These warnings are level 4. They will be slowly
           # removed as code is fixed.
           4100, 4121, 4125, 4127, 4130, 4131, 4189, 4201, 4238, 4244, 4245,
           4310, 4355, 4428, 4481, 4505, 4510, 4512, 4530, 4610, 4611, 4701,
           4702, 4706,
@@ skipping 18 matching lines @@
                 'ExceptionHandling': '1',  # /EHsc
               }, {
                 'ExceptionHandling': '0',
               }],
             ],
           },
           'VCLibrarianTool': {
             'AdditionalOptions': ['/ignore:4221'],
             'AdditionalLibraryDirectories': [
               '<(DEPTH)/third_party/directxsdk/files/Lib/x86',
-              '<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x86',
+              '<(windows_sdk_path)/Lib/win8/um/x86',
             ],
           },
           'VCLinkerTool': {
             'AdditionalDependencies': [
               'wininet.lib',
               'dnsapi.lib',
               'version.lib',
               'msimg32.lib',
               'ws2_32.lib',
               'usp10.lib',
@@ skipping 25 matching lines @@
                   'comdlg32.lib',
                   'ole32.lib',
                   'shell32.lib',
                   'user32.lib',
                   'winspool.lib',
                 ],
               }],
             ],
             'AdditionalLibraryDirectories': [
               '<(DEPTH)/third_party/directxsdk/files/Lib/x86',
-              '<(DEPTH)/third_party/platformsdk_win8/files/Lib/win8/um/x86',
+              '<(windows_sdk_path)/Lib/win8/um/x86',
             ],
             'GenerateDebugInformation': 'true',
             'MapFileName': '$(OutDir)\\$(TargetName).map',
             'ImportLibrary': '$(OutDir)\\lib\\$(TargetName).lib',
             'FixedBaseAddress': '1',
             # SubSystem values:
             #   0 == not set
             #   1 == /SUBSYSTEM:CONSOLE
             #   2 == /SUBSYSTEM:WINDOWS
             # Most of the executables we'll ever create are tests
@@ skipping 129 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }