tools: ifwitool: Define __packed when it is not defined
Some compilers may provide __packed define for us.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/ifwitool.c b/tools/ifwitool.c
index 2e020a8..543e9d4 100644
--- a/tools/ifwitool.c
+++ b/tools/ifwitool.c
@@ -10,7 +10,9 @@
#include <getopt.h>
#include "os_support.h"
+#ifndef __packed
#define __packed __attribute__((packed))
+#endif
#define KiB 1024
#define ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a) - 1)
#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))