--- a/xmalloc.c
+++ b/xmalloc.c
@@ -68,12 +68,6 @@
    The caller may set it to some other value.  */
 int xmalloc_exit_failure = EXIT_FAILURE;
 
-#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT)
-void error (int, int, const char *, ...);
-#else
-void error ();
-#endif
-
 static VOID *
 fixup_null_alloc (n)
      size_t n;