#ifdef WIN32
    #ifdef BASEFUN_LIB
        #define BASEFUN_EXPORT __declspec(dllexport)
        #define BASEFUN_EXPORT_C __declspec(dllexport)
    #else
        #define BASEFUN_EXPORT __declspec(dllimport)
        #define BASEFUN_EXPORT_C __declspec(dllexport)
    #endif
#else
    #define BASEFUN_EXPORT
    #define BASEFUN_EXPORT_C
#endif