-char *xstrdup_lower PARAMS ((const char *));
-
-char *strdupdelim PARAMS ((const char *, const char *));
-char **sepstring PARAMS ((const char *));
-int frontcmp PARAMS ((const char *, const char *));
-void fork_to_background PARAMS ((void));
-
-#ifdef WGET_USE_STDARG
-char *aprintf PARAMS ((const char *, ...))
- GCC_FORMAT_ATTR (1, 2);
-char *concat_strings PARAMS ((const char *, ...));
-#else /* not WGET_USE_STDARG */
-char *aprintf ();
-char *concat_strings ();
-#endif /* not WGET_USE_STDARG */
-
-void touch PARAMS ((const char *, time_t));
-int remove_link PARAMS ((const char *));
-int file_exists_p PARAMS ((const char *));
-int file_non_directory_p PARAMS ((const char *));
-wgint file_size PARAMS ((const char *));
-int make_directory PARAMS ((const char *));
-char *unique_name PARAMS ((const char *, int));
-FILE *unique_create PARAMS ((const char *, int, char **));
-FILE *fopen_excl PARAMS ((const char *, int));
-char *file_merge PARAMS ((const char *, const char *));
-
-int acceptable PARAMS ((const char *));
-int accdir PARAMS ((const char *s, enum accd));
-char *suffix PARAMS ((const char *s));
-int match_tail PARAMS ((const char *, const char *, int));
-int has_wildcards_p PARAMS ((const char *));
-
-int has_html_suffix_p PARAMS ((const char *));
-
-char *read_whole_line PARAMS ((FILE *));
-struct file_memory *read_file PARAMS ((const char *));
-void read_file_free PARAMS ((struct file_memory *));
-
-void free_vec PARAMS ((char **));
-char **merge_vecs PARAMS ((char **, char **));
-
-void string_set_add PARAMS ((struct hash_table *, const char *));
-int string_set_contains PARAMS ((struct hash_table *, const char *));
-void string_set_to_array PARAMS ((struct hash_table *, char **));
-void string_set_free PARAMS ((struct hash_table *));
-void free_keys_and_values PARAMS ((struct hash_table *));
-
-char *with_thousand_seps PARAMS ((wgint));
-char *with_thousand_seps_large PARAMS ((LARGE_INT));
-char *human_readable PARAMS ((wgint));
-int numdigit PARAMS ((wgint));
-char *number_to_string PARAMS ((char *, wgint));
-char *number_to_static_string PARAMS ((wgint));
-
-int determine_screen_width PARAMS ((void));
-int random_number PARAMS ((int));
-double random_float PARAMS ((void));
-
-int run_with_timeout PARAMS ((double, void (*) (void *), void *));
-void xsleep PARAMS ((double));