Plugin function export attempt (SA-MP forums).

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
    #undef PLUGIN_EXPORT
    #ifdef __cplusplus
        #define PLUGIN_EXPORT extern "C" __declspec(dllexport)
    #else
        #define PLUGIN_EXPORT __declspec(dllexport)
    #endif
#endif