1 // Copyright (c) 2012 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 
8 #if defined(COMPONENT_BUILD)
9 #if defined(WIN32)
10 
11 #if defined(BASE_IMPLEMENTATION)
12 #define BASE_EXPORT __declspec(dllexport)
13 #else
14 #define BASE_EXPORT __declspec(dllimport)
15 #endif  // defined(BASE_IMPLEMENTATION)
16 
17 #else  // defined(WIN32)
18 #if defined(BASE_IMPLEMENTATION)
19 #define BASE_EXPORT __attribute__((visibility("default")))
20 #else
21 #define BASE_EXPORT
22 #endif  // defined(BASE_IMPLEMENTATION)
23 #endif
24 
25 #else  // defined(COMPONENT_BUILD)
26 #define BASE_EXPORT
27 #endif
28 
29 #endif  // BASE_BASE_EXPORT_H_
30