base/base_export.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BASE_BASE_EXPORT_H_
   6 #define BASE_BASE_EXPORT_H_
   7 #pragma once
   8
   9 #if defined(COMPONENT_BUILD)
  10 #if defined(WIN32)
  11
  12 #if defined(BASE_IMPLEMENTATION)
  13 #define BASE_EXPORT __declspec(dllexport)
  14 #else
  15 #define BASE_EXPORT __declspec(dllimport)
  16 #endif  // defined(BASE_IMPLEMENTATION)
  17
  18 #else  // defined(WIN32)
  19 #define BASE_EXPORT __attribute__((visibility("default")))
  20 #endif
  21
  22 #else  // defined(COMPONENT_BUILD)
  23 #define BASE_EXPORT
  24 #endif
  25
  26 #endif  // BASE_BASE_EXPORT_H_