/* Magic text to check for eyesdn-ness of file */
static const unsigned char eyesdn_hdr_magic[] =
{ 'E', 'y', 'e', 'S', 'D', 'N'};
-#define EYESDN_HDR_MAGIC_SIZE (sizeof(eyesdn_hdr_magic) / sizeof(eyesdn_hdr_magic[0]))
+#define EYESDN_HDR_MAGIC_SIZE sizeof(eyesdn_hdr_magic)
/* Size of a record header */
#define EYESDN_HDR_LENGTH 12