text: // Copyright 2021 Mogi LLC
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #ifndef MOGI_STATECHART__VISIBILITY_CONTROL_H_
  #define MOGI_STATECHART__VISIBILITY_CONTROL_H_
  
  // This logic was borrowed (then namespaced) from the examples on the gcc wiki:
  //     https://gcc.gnu.org/wiki/Visibility
  
  #if defined _WIN32 || defined __CYGWIN__
    #ifdef __GNUC__
      #define MOGI_STATECHART_EXPORT __attribute__ ((dllexport))
      #define MOGI_STATECHART_IMPORT __attribute__ ((dllimport))
    #else
      #define MOGI_STATECHART_EXPORT __declspec(dllexport)
      #define MOGI_STATECHART_IMPORT __declspec(dllimport)
    #endif
    #ifdef MOGI_STATECHART_BUILDING_LIBRARY
      #define MOGI_STATECHART_PUBLIC MOGI_STATECHART_EXPORT
    #else
      #define MOGI_STATECHART_PUBLIC MOGI_STATECHART_IMPORT
    #endif
    #define MOGI_STATECHART_PUBLIC_TYPE MOGI_STATECHART_PUBLIC
    #define MOGI_STATECHART_LOCAL
  #else
    #define MOGI_STATECHART_EXPORT __attribute__ ((visibility("default")))
    #define MOGI_STATECHART_IMPORT
    #if __GNUC__ >= 4
      #define MOGI_STATECHART_PUBLIC __attribute__ ((visibility("default")))
      #define MOGI_STATECHART_LOCAL  __attribute__ ((visibility("hidden")))
    #else
      #define MOGI_STATECHART_PUBLIC
      #define MOGI_STATECHART_LOCAL
    #endif
    #define MOGI_STATECHART_PUBLIC_TYPE
  #endif
  
  #endif  // MOGI_STATECHART__VISIBILITY_CONTROL_H_
  