Source release 16.3.0

build.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/python3 -B
 # Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
 # source code may only be used and distributed under the Widevine Master
 # License Agreement.
@@ -247,6 +247,9 @@ def main(args):
                       'jobs will spawn without limit.')
   parser.add_argument('-D', action='append', default=[],
                       help='Pass variable definitions to gyp.')
+  parser.add_argument('-e', '--extra_gyp', action='append', default=[],
+                      help='External gyp file that are processed after the '
+                      'standard gyp files. (Maybe be specified multiple times)')
   parser.add_argument('-ft', '--fuzz_tests', default=False,
                       action='store_true',
                       help='Set this flag if you want to build fuzz tests.')
@@ -270,6 +273,9 @@ def main(args):
         os.path.join(OEMCRYPTO_FUZZTEST_DIR_PATH, 'oemcrypto_fuzztests.gyp'))
   else:
     gyp_args.append(os.path.join(CDM_TOP_PATH, 'cdm', 'cdm_unittests.gyp'))
+  for var in options.extra_gyp:
+    gyp_args.append(var)
+
   for var in options.D:
     gyp_args.append('-D' + var)