extern int parse_get_pair(char **orig_string, char **left, char **right);
extern int unlink_secure(const char *filename);
extern int file_map(const char *filename, char **buf, size_t *bufsize);
-extern void file_unmap(char *buf, size_t bufsize);
+extern void file_unmap(void *buf, size_t bufsize);
extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
extern void remove_trailing_char(char *path, char c);
extern void replace_untrusted_chars(char *string);