diff -Naur autoconf-2.57.old/lib/autoconf/status.m4 autoconf-2.57/lib/autoconf/status.m4
--- autoconf-2.57.old/lib/autoconf/status.m4	2003-01-06 23:36:47.000000000 +0100
+++ autoconf-2.57/lib/autoconf/status.m4	2003-01-06 23:37:13.000000000 +0100
@@ -882,7 +882,7 @@
 m4_ifdef([_AC_SUBST_FILES],
          [AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_FILES]),
 [/@AC_Var@/r $AC_Var
-s,@AC_Var@,,;t t
+/@AC_Var@/d;t t
 ])])dnl
 CEOF