Index: gcc/config/avr/avr.h
===================================================================
--- gcc/config/avr/avr.h        (revision 171911)
+++ gcc/config/avr/avr.h        (working copy)
@@ -474,8 +474,8 @@
      fprintf ((STREAM), ",%lu,1\n", (unsigned long)(SIZE));               \
 } while (0)
 
-#define ASM_OUTPUT_BSS(FILE, DECL, NAME, SIZE, ROUNDED)                        \
-  asm_output_bss ((FILE), (DECL), (NAME), (SIZE), (ROUNDED))
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+  asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 
 #define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED)                  \
 do {                                                                   \