bear

67 |         void *from;                                                            \
68 |         TYPE_ to;                                                              \
69 |     } cast;                                                                    \
70 |     if (0 == (cast.from = dlsym(RTLD_NEXT, SYMBOL_))) {                        \
71 |         perror("bear: dlsym");                                                 \
72 |         exit(EXIT_FAILURE);                                                    \
73 |     }                                                                          \