🎫 Fail write_build_config.py if current_toolchain != default_toolchain

build/android/gyp/write_build_config.py

Index: build/android/gyp/write_build_config.py
diff --git a/build/android/gyp/write_build_config.py b/build/android/gyp/write_build_config.py
index 70bc6d08104a0a6e08165a6b5daa52ce3be97fcb..18d76348f0e353383c11070c89e65d4f0ee9dee9 100755
--- a/build/android/gyp/write_build_config.py
+++ b/build/android/gyp/write_build_config.py
@@ -279,11 +279,15 @@ def main(argv):
       help='Path to the proguard .info output for this apk.')
   parser.add_option('--has-alternative-locale-resource', action='store_true',
       help='Whether there is alternative-locale-resource in direct deps')
+  parser.add_option('--fail',
+      help='GYP-list of error message lines to fail with.')
 
   options, args = parser.parse_args(argv)
 
   if args:
     parser.error('No positional arguments should be given.')
+  if options.fail:
+    parser.error('\n'.join(build_utils.ParseGypList(options.fail)))
 
   required_options_map = {
       'java_binary': ['build_config', 'jar_path'],