+#include "macros.h"
+
+/* Some packages define ARGMATCH_DIE and ARGMATCH_DIE_DECL in <config.h>, and
+ thus must link with a definition of that function. Provide it here. */
+#ifdef ARGMATCH_DIE_DECL
+
+_Noreturn ARGMATCH_DIE_DECL;
+ARGMATCH_DIE_DECL { exit (1); }