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Diffstat (limited to 'webrtc/rtc_base/ignore_wundef.h')
| -rw-r--r-- | webrtc/rtc_base/ignore_wundef.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/webrtc/rtc_base/ignore_wundef.h b/webrtc/rtc_base/ignore_wundef.h new file mode 100644 index 0000000..1564096 --- /dev/null +++ b/webrtc/rtc_base/ignore_wundef.h @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef RTC_BASE_IGNORE_WUNDEF_H_ +#define RTC_BASE_IGNORE_WUNDEF_H_ + +// If a header file uses #if on possibly undefined macros (and it's for some +// reason not possible to just fix the header file), include it like this: +// +// RTC_PUSH_IGNORING_WUNDEF() +// #include "misbehaving_header.h" +// RTC_POP_IGNORING_WUNDEF() +// +// This will cause the compiler to not emit -Wundef warnings for that file. + +#ifdef __clang__ +#define RTC_PUSH_IGNORING_WUNDEF() \ + _Pragma("clang diagnostic push") \ + _Pragma("clang diagnostic ignored \"-Wundef\"") +#define RTC_POP_IGNORING_WUNDEF() _Pragma("clang diagnostic pop") +#else +#define RTC_PUSH_IGNORING_WUNDEF() +#define RTC_POP_IGNORING_WUNDEF() +#endif // __clang__ + +#endif // RTC_BASE_IGNORE_WUNDEF_H_ |