1 files changed, 43 insertions, 0 deletions
diff --git a/webrtc/rtc_base/system/rtc_export.h b/webrtc/rtc_base/system/rtc_export.h
new file mode 100644
index 0000000..d1eb60a
--- /dev/null
+++ b/webrtc/rtc_base/system/rtc_export.h
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2018 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_SYSTEM_RTC_EXPORT_H_
+#define RTC_BASE_SYSTEM_RTC_EXPORT_H_
+
+// RTC_EXPORT is used to mark symbols as exported or imported when WebRTC is
+// built or used as a shared library.
+// When WebRTC is built as a static library the RTC_EXPORT macro expands to
+// nothing.
+
+#ifdef WEBRTC_ENABLE_SYMBOL_EXPORT
+
+#ifdef WEBRTC_WIN
+
+#ifdef WEBRTC_LIBRARY_IMPL
+#define RTC_EXPORT __declspec(dllexport)
+#else
+#define RTC_EXPORT __declspec(dllimport)
+#endif
+
+#else  // WEBRTC_WIN
+
+#if __has_attribute(visibility) && defined(WEBRTC_LIBRARY_IMPL)
+#define RTC_EXPORT __attribute__((visibility("default")))
+#endif
+
+#endif  // WEBRTC_WIN
+
+#endif  // WEBRTC_ENABLE_SYMBOL_EXPORT
+
+#ifndef RTC_EXPORT
+#define RTC_EXPORT
+#endif
+
+#endif  // RTC_BASE_SYSTEM_RTC_EXPORT_H_