diff --git a/gcc/expr.c b/gcc/expr.c
index a88cc61e..fea930c6 100755
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -123,7 +123,7 @@ static rtx enqueue_insn         (rtx, rtx);
 static int queued_subexp_p      (rtx);
 static void init_queue          (void);
 static int move_by_pieces_ninsns (unsigned int, int);
-static void move_by_pieces_1    (rtx (*)(rtx, ...), enum machine_mode,
+static void move_by_pieces_1    (rtx (*)(rtx, rtx), enum machine_mode,
                                  struct move_by_pieces *);
 static void clear_by_pieces     (rtx, int, int);
 static void clear_by_pieces_1   (rtx (*)(rtx, rtx), enum machine_mode,
@@ -1093,7 +1093,7 @@ move_by_pieces_ninsns(unsigned int l, int align)
    to make a move insn for that mode.  DATA has all the other info.  */
 
 static void
-move_by_pieces_1(rtx (*genfun) (rtx, ...), enum machine_mode mode, struct move_by_pieces *data)
+move_by_pieces_1(rtx (*genfun) (rtx, rtx), enum machine_mode mode, struct move_by_pieces *data)
 {
     register int size = GET_MODE_SIZE(mode);
     register rtx to1, from1;
diff --git a/gcc_arm/expr.c b/gcc_arm/expr.c
index 0adbb33c..8f6a0527 100755
--- a/gcc_arm/expr.c
+++ b/gcc_arm/expr.c
@@ -156,7 +156,7 @@ static rtx enqueue_insn		PROTO((rtx, rtx));
 static int queued_subexp_p	PROTO((rtx));
 static void init_queue		PROTO((void));
 static int move_by_pieces_ninsns PROTO((unsigned int, int));
-static void move_by_pieces_1	PROTO((rtx (*) (rtx, ...), enum machine_mode,
+static void move_by_pieces_1	PROTO((rtx (*) (rtx, rtx), enum machine_mode,
 				       struct move_by_pieces *));
 static void clear_by_pieces	PROTO((rtx, int, int));
 static void clear_by_pieces_1	PROTO((rtx (*) (rtx, rtx), enum machine_mode,
@@ -1589,7 +1589,7 @@ move_by_pieces_ninsns (l, align)
 
 static void
 move_by_pieces_1 (genfun, mode, data)
-     rtx (*genfun) PROTO ((rtx, ...));
+     rtx (*genfun) PROTO ((rtx, rtx));
      enum machine_mode mode;
      struct move_by_pieces *data;
 {