--- src/test.c.bak	2023-03-13 13:08:10.000000000 -0500
+++ src/test.c	2023-03-14 17:33:36.000000000 -0500
@@ -119,7 +119,7 @@
  * beyond - call when we're beyond the end of the argument list (an
  *	error condition)
  */
-static void
+static _Noreturn void
 beyond (void)
 {
   test_syntax_error (_("missing argument after %s"), quote (argv[argc - 1]));
--- src/pr.c.bak	2023-03-13 13:08:10.000000000 -0500
+++ src/pr.c	2023-03-14 17:37:54.000000000 -0500
@@ -772,7 +772,7 @@
   {NULL, 0, NULL, 0}
 };
 
-static void
+static _Noreturn void
 integer_overflow (void)
 {
   die (EXIT_FAILURE, 0, _("integer overflow"));