1*d9f75844SAndroid Build Coastguard Worker /* 2*d9f75844SAndroid Build Coastguard Worker * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. 3*d9f75844SAndroid Build Coastguard Worker * 4*d9f75844SAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 5*d9f75844SAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 6*d9f75844SAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 7*d9f75844SAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 8*d9f75844SAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 9*d9f75844SAndroid Build Coastguard Worker */ 10*d9f75844SAndroid Build Coastguard Worker 11*d9f75844SAndroid Build Coastguard Worker #ifndef RTC_BASE_IGNORE_WUNDEF_H_ 12*d9f75844SAndroid Build Coastguard Worker #define RTC_BASE_IGNORE_WUNDEF_H_ 13*d9f75844SAndroid Build Coastguard Worker 14*d9f75844SAndroid Build Coastguard Worker // If a header file uses #if on possibly undefined macros (and it's for some 15*d9f75844SAndroid Build Coastguard Worker // reason not possible to just fix the header file), include it like this: 16*d9f75844SAndroid Build Coastguard Worker // 17*d9f75844SAndroid Build Coastguard Worker // RTC_PUSH_IGNORING_WUNDEF() 18*d9f75844SAndroid Build Coastguard Worker // #include "misbehaving_header.h" 19*d9f75844SAndroid Build Coastguard Worker // RTC_POP_IGNORING_WUNDEF() 20*d9f75844SAndroid Build Coastguard Worker // 21*d9f75844SAndroid Build Coastguard Worker // This will cause the compiler to not emit -Wundef warnings for that file. 22*d9f75844SAndroid Build Coastguard Worker 23*d9f75844SAndroid Build Coastguard Worker #ifdef __clang__ 24*d9f75844SAndroid Build Coastguard Worker #define RTC_PUSH_IGNORING_WUNDEF() \ 25*d9f75844SAndroid Build Coastguard Worker _Pragma("clang diagnostic push") \ 26*d9f75844SAndroid Build Coastguard Worker _Pragma("clang diagnostic ignored \"-Wundef\"") 27*d9f75844SAndroid Build Coastguard Worker #define RTC_POP_IGNORING_WUNDEF() _Pragma("clang diagnostic pop") 28*d9f75844SAndroid Build Coastguard Worker #else 29*d9f75844SAndroid Build Coastguard Worker #define RTC_PUSH_IGNORING_WUNDEF() 30*d9f75844SAndroid Build Coastguard Worker #define RTC_POP_IGNORING_WUNDEF() 31*d9f75844SAndroid Build Coastguard Worker #endif // __clang__ 32*d9f75844SAndroid Build Coastguard Worker 33*d9f75844SAndroid Build Coastguard Worker #endif // RTC_BASE_IGNORE_WUNDEF_H_ 34