+#include <stdio.h> +#include "auparse.h" +#include <stdlib.h> +#include <malloc.h> int main() { auparse_state_t *au; au = auparse_init(AUSOURCE_LOGS, NULL); if (au == NULL) exit(1); if (!ausearch_set_param(au, "auid", "=", "500", AUSEARCH_STOP_EVENT)) exit(1); while (ausearch_next_event(au)) { if (auparse_find_field(au, "auid")) { printf("auid=%s\n", auparse_interpret_field(au)); } } auparse_destroy(au); } I tried the above program for but after compilation its giving following linking error. /tmp/ccMo3ClJ.o: In function `main': parselib.c:(.text+0x21): undefined reference to `auparse_init' parselib.c:(.text+0x61): undefined reference to `ausearch_set_param' parselib.c:(.text+0x84): undefined reference to `auparse_find_field' parselib.c:(.text+0x93): undefined reference to `auparse_interpret_field' parselib.c:(.text+0xae): undefined reference to `ausearch_next_event' parselib.c:(.text+0xbd): undefined reference to `auparse_destroy' collect2: ld returned 1 exit status Do help.......