diff --git a/exfat/libexfat/exfat.h b/exfat/libexfat/exfat.h
index ff58e84..5beba7c 100644
--- a/exfat/libexfat/exfat.h
+++ b/exfat/libexfat/exfat.h
@@ -4,7 +4,7 @@
 	implementation.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	This program is free software; you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
@@ -24,15 +24,19 @@
 #ifndef EXFAT_H_INCLUDED
 #define EXFAT_H_INCLUDED
 
+#if defined(__ANDROID__)
+#include "android_config.h"
+#else
+#include "config.h"
+#endif
+#include "compiler.h"
+#include "exfatfs.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
 #include <stdbool.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include "compiler.h"
-#include "exfatfs.h"
-#include "version.h"
 
 #define EXFAT_NAME_MAX 256
 #define EXFAT_ATTRIB_CONTIGUOUS 0x10000
@@ -51,7 +55,6 @@
 #define ROUND_UP(x, d) (DIV_ROUND_UP(x, d) * (d))
 #define UTF8_BYTES(c) ((c) * 6) /* UTF-8 character can occupy up to 6 bytes */
 
-typedef size_t bitmap_t;
 #define BMAP_SIZE(count) (ROUND_UP(count, sizeof(bitmap_t) * 8) / 8)
 #define BMAP_BLOCK(index) ((index) / sizeof(bitmap_t) / 8)
 #define BMAP_MASK(index) ((bitmap_t) 1 << ((index) % (sizeof(bitmap_t) * 8)))
@@ -62,6 +65,10 @@
 #define BMAP_CLR(bitmap, index) \
 	((bitmap)[BMAP_BLOCK(index)] &= ~BMAP_MASK(index))
 
+/* The size of off_t type must be 64 bits. File systems larger than 2 GB will
+   be corrupted with 32-bit off_t. */
+STATIC_ASSERT(sizeof(off_t) == 8);
+
 struct exfat_node
 {
 	struct exfat_node* parent;
@@ -73,7 +80,7 @@
 	uint32_t fptr_index;
 	cluster_t fptr_cluster;
 	cluster_t entry_cluster;
-	off64_t entry_offset;
+	off_t entry_offset;
 	cluster_t start_cluster;
 	int flags;
 	uint64_t size;
@@ -139,18 +146,18 @@
 int exfat_close(struct exfat_dev* dev);
 int exfat_fsync(struct exfat_dev* dev);
 enum exfat_mode exfat_get_mode(const struct exfat_dev* dev);
-off64_t exfat_get_size(const struct exfat_dev* dev);
-off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence);
+off_t exfat_get_size(const struct exfat_dev* dev);
+off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence);
 ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size);
 ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size);
 ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
-		off64_t offset);
+		off_t offset);
 ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
-		off64_t offset);
+		off_t offset);
 ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
-		void* buffer, size_t size, off64_t offset);
+		void* buffer, size_t size, off_t offset);
 ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
-		const void* buffer, size_t size, off64_t offset);
+		const void* buffer, size_t size, off_t offset);
 
 int exfat_opendir(struct exfat* ef, struct exfat_node* dir,
 		struct exfat_iterator* it);
@@ -161,16 +168,17 @@
 int exfat_split(struct exfat* ef, struct exfat_node** parent,
 		struct exfat_node** node, le16_t* name, const char* path);
 
-off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
+off_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
 cluster_t exfat_next_cluster(const struct exfat* ef,
 		const struct exfat_node* node, cluster_t cluster);
 cluster_t exfat_advance_cluster(const struct exfat* ef,
 		struct exfat_node* node, uint32_t count);
+int exfat_flush_nodes(struct exfat* ef);
 int exfat_flush(struct exfat* ef);
 int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size,
 		bool erase);
 uint32_t exfat_count_free_clusters(const struct exfat* ef);
-int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b);
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b);
 
 void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
 		struct stat* stbuf);
@@ -194,6 +202,7 @@
 
 struct exfat_node* exfat_get_node(struct exfat_node* node);
 void exfat_put_node(struct exfat* ef, struct exfat_node* node);
+int exfat_cleanup_node(struct exfat* ef, struct exfat_node* node);
 int exfat_cache_directory(struct exfat* ef, struct exfat_node* dir);
 void exfat_reset_cache(struct exfat* ef);
 int exfat_flush_node(struct exfat* ef, struct exfat_node* node);