diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c02d742d719..ba2531268ba 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -37,6 +37,11 @@
 	* config/pdp11/pdp11.c (pdp11_asm_print_operand_punct_valid_p): Change
 	type to match target.def .
 
+	PR target/47114
+	* config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor): Add
+	ATTRIBUTE_UNUSED to declaration.
+	(rs6000_elf_asm_out_destructor): Likewise.
+
 2010-12-30  Mingjie Xing  <mingjie.xing@gmail.com>
 
 	* config/mips/mips.h (SHIFT_COUNT_TRUNCATED): Change
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index f26e37e8cd1..30f8b75dc4c 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -938,8 +938,8 @@ static rtx rs6000_function_value (const_tree, const_tree, bool);
 static void rs6000_file_start (void);
 #if TARGET_ELF
 static int rs6000_elf_reloc_rw_mask (void);
-static void rs6000_elf_asm_out_constructor (rtx, int);
-static void rs6000_elf_asm_out_destructor (rtx, int);
+static void rs6000_elf_asm_out_constructor (rtx, int) ATTRIBUTE_UNUSED;
+static void rs6000_elf_asm_out_destructor (rtx, int) ATTRIBUTE_UNUSED;
 static void rs6000_elf_end_indicate_exec_stack (void) ATTRIBUTE_UNUSED;
 static void rs6000_elf_asm_init_sections (void);
 static section *rs6000_elf_select_rtx_section (enum machine_mode, rtx,