suppress warnings about easch <applet>_main() having

no preceding prototype

debianutils/pipe_progress.c

@@ -18,6 +18,7 @@
 /* Read a block of data from stdin, write it to stdout.
  * Activity is indicated by a '.' to stderr
  */
+int pipe_progress_main(int argc, char **argv);
 int pipe_progress_main(int argc, char **argv)
 {
 	RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE);