use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/aix.h b/libblkid/aix.h
new file mode 100644
index 0000000..f767c5a
--- /dev/null
+++ b/libblkid/aix.h
@@ -0,0 +1,7 @@
+#ifndef BLKID_PARTITIONS_AIX_H
+#define BLKID_PARTITIONS_AIX_H
+
+#define BLKID_AIX_MAGIC_STRING	"\xC9\xC2\xD4\xC1"
+#define BLKID_AIX_MAGIC_STRLEN	(sizeof(BLKID_AIX_MAGIC_STRING) - 1)
+
+#endif