Pass address va to va_stack_arg_builtin for ppc64 in interp.
@@ -1657,7 +1657,7 @@ static void interp (MIR_context_t ctx, MIR_item_t func_item, va_list va, MIR_val
case MIR_T_LD: arg_vals[i].ld = va_arg (va, long double); break;
case MIR_T_P: arg_vals[i].a = va_arg (va, void *); break;
case MIR_T_BLK:
-#if VA_LIST_IS_ARRAY_P
+#if defined(__PPC64__)
arg_vals[i].a = va_stack_arg_builtin (&va, arg_vars[i].size);
#else
arg_vals[i].a = va_stack_arg_builtin (va, arg_vars[i].size);
