Fixes and enhancements...

build/internal/essential.scons

 # Copyright (c) 2006-2008 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.
 
 __doc__ = """
 Essential settings for Chromium builds.
 """
 
 Import("env")
 
 env.Append(
     CPPPATH = [
         '$CHROME_SRC_DIR',
     ],
     CCFLAGS = [
         '$CHROMIUM_CC_OPT_FLAGS',
     ],
     LINKFLAGS = [
         '$CHROMIUM_LINK_OPT_FLAGS',
+        '$CHROMIUM_INCREMENTAL_FLAGS',
     ],
 )
 
 if env['PLATFORM'] == 'win32':
+  incremental = env.get('INCREMENTAL')
+  if incremental is not None:
+    if incremental:
+      env['CHROMIUM_INCREMENTAL_FLAGS'] = '/INCREMENTAL'
+    else:
+      env['CHROMIUM_INCREMENTAL_FLAGS'] = '/INCREMENTAL:NO'
   env.Append(
       ARFLAGS = [
           '/ignore:4221',
       ],
       CPPDEFINES = [
           ('_WIN32_WINNT', '0x0600'),
           ('WINVER', '0x0600'),
           'WIN32',
           '_WINDOWS',
           ('_HAS_EXCEPTIONS', 0),
@@ skipping 66 matching lines @@
   env.FilterOut(
       CCFLAGS = [
           '/GM',    # VCCLCompilerTool.MinimalRebuild="false"
           '/EH',    # VCCLCompilerTool.ExceptionHandling="0"
       ],
   )
 elif env['PLATFORM'] == 'posix':
   pass
 elif env['PLATFORM'] == 'mac':
   pass