#ifdef __cplusplus
#define EXTC extern "C"
#define START_EXTC_GRP extern "C" {
#define END_EXTC_GRP }
#else
#define EXTC
#define START_EXTC_GRP
#define END_EXTC_GRP
#endif // _CPLUSPLUS

#ifdef __cplusplus
#  define _FFI_PLUGIN extern "C" __attribute__((visibility("default"))) __attribute__((used))
#else
#  define _FFI_PLUGIN __attribute__((visibility("default"))) __attribute__((used))
#endif // __cplusplus