system_util.hh
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1 /*
2  * Copyright 2013 Open Source Robotics Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16 */
17 #ifndef SDF_VISIBLE_HH_
18 #define SDF_VISIBLE_HH_
19 
28 #if defined _WIN32 || defined __CYGWIN__
29  #ifdef BUILDING_SDFORMAT_SHARED
30  #define SDFORMAT_VISIBLE __declspec(dllexport)
31  #elif !defined SDFORMAT_STATIC_DEFINE
32  #define SDFORMAT_VISIBLE __declspec(dllimport)
33  #else
34  #define SDFORMAT_VISIBLE
35  #endif
36 #else
37  #if __GNUC__ >= 4 && !defined SDFORMAT_STATIC_DEFINE
38  #define SDFORMAT_VISIBLE __attribute__ ((visibility ("default")))
39  #define SDFORMAT_HIDDEN __attribute__ ((visibility ("hidden")))
40  #else
41  #define SDFORMAT_VISIBLE
42  #define SDFORMAT_HIDDEN
43  #endif
44 #endif
45 
46 // SDF_VISIBLE_HH_
47 #endif