macros.h

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/*
 * Copyright (C) 2008, Willow Garage, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the names of Stanford University or Willow Garage, Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef ROSPACK_MACROS_H_
#define ROSPACK_MACROS_H_

/*
 * Windows macros for dll exports
 *
 * This replicates what ros has in roscpp_core/cpp_common/macros.h
 * so rospack can be standalone.
 *
 * See also http://gcc.gnu.org/wiki/Visibility
 */

#if defined(_MSC_VER)
    #define ROS_HELPER_IMPORT __declspec(dllimport)
    #define ROS_HELPER_EXPORT __declspec(dllexport)
    #define ROS_HELPER_LOCAL
#elif __GNUC__ >= 4
    #define ROS_HELPER_IMPORT __attribute__ ((visibility("default")))
    #define ROS_HELPER_EXPORT __attribute__ ((visibility("default")))
    #define ROS_HELPER_LOCAL  __attribute__ ((visibility("hidden")))
#else
    #define ROS_HELPER_IMPORT
    #define ROS_HELPER_EXPORT
    #define ROS_HELPER_LOCAL
#endif

// Ignore warnings about import/exports when deriving from std classes.
#ifdef _MSC_VER
  #pragma warning(disable:4251)
  #pragma warning(disable:4275)
  #pragma warning(disable:4514) // unreferenced inline function has been removed
  #pragma warning(disable:4668) // warnings about used, but not defined macros, replacing with 0
  #pragma warning(disable:4710) // function not inlined
  #pragma warning(disable:4738) // storing floats, memory splitting, possible loss in performance
  #pragma warning(disable:4820) // structs and padding
#endif

#ifdef ROS_BUILD_STATIC_LIBS // ros is being built around shared libraries
  #define ROSPACK_DECL
#else // ros is being built around shared libraries
  #ifdef rospack_EXPORTS // we are building a shared lib/dll
    #define ROSPACK_DECL ROS_HELPER_EXPORT
  #else // we are using shared lib/dll
    #define ROSPACK_DECL ROS_HELPER_IMPORT
  #endif
#endif

#endif /* ROSPACK_MACROS_H_ */