diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 11e5565584..8bb7943aae 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2014-01-07  Yao Qi  <yao@codesourcery.com>
+
+	* spu-linux-nat.c (_initialize_spu_nat): Declare.
+
 2014-01-07  Joel Brobecker  <brobecker@adacore.com>
 
 	* ada-valprint.c (print_field_values): Add "language" parameter.
diff --git a/gdb/spu-linux-nat.c b/gdb/spu-linux-nat.c
index e9b155bbb7..9441e02a5e 100644
--- a/gdb/spu-linux-nat.c
+++ b/gdb/spu-linux-nat.c
@@ -610,6 +610,8 @@ spu_can_use_hw_breakpoint (int type, int cnt, int othertype)
   return 0;
 }
 
+/* -Wmissing-prototypes */
+extern initialize_file_ftype _initialize_spu_nat;
 
 /* Initialize SPU native target.  */
 void