|  | # Copyright 2020 The Tint Authors. | 
|  | # | 
|  | # Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | # you may not use this file except in compliance with the License. | 
|  | # You may obtain a copy of the License at | 
|  | # | 
|  | #     http://www.apache.org/licenses/LICENSE-2.0 | 
|  | # | 
|  | # Unless required by applicable law or agreed to in writing, software | 
|  | # distributed under the License is distributed on an "AS IS" BASIS, | 
|  | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | # See the License for the specific language governing permissions and | 
|  | # limitations under the License. | 
|  |  | 
|  | declare_args() { | 
|  | # Tell Tint and dependencies to not do Chromium-specific things | 
|  | build_with_chromium = false | 
|  |  | 
|  | # In standalone Tint builds, don't try to use the hermetic install of Xcode | 
|  | # that Chromium uses | 
|  | use_system_xcode = "" | 
|  |  | 
|  | # Android 32-bit non-component, non-clang builds cannot have symbol_level=2 | 
|  | # due to 4GiB file size limit, see https://crbug.com/648948. | 
|  | ignore_elf32_limitations = false | 
|  | } | 
|  |  | 
|  | # Detect whether we can use the hermetic XCode like in Chromium and do so if | 
|  | # possible. | 
|  | if (host_os == "mac" && use_system_xcode == "") { | 
|  | _result = exec_script("//build/mac/should_use_hermetic_xcode.py", | 
|  | [ target_os ], | 
|  | "value") | 
|  |  | 
|  | assert(_result != 2, | 
|  | "Do not allow building targets with the default" + | 
|  | "hermetic toolchain if the minimum OS version is not met.") | 
|  | assert(_result != 3, | 
|  | "iOS does not support building with a hermetic toolchain. " + | 
|  | "Please install Xcode.") | 
|  |  | 
|  | use_system_xcode = _result != 1 | 
|  | } |