--- a/compr_lzo.c
+++ b/compr_lzo.c
@@ -24,7 +24,6 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
-#include <asm/types.h>
 #include <linux/jffs2.h>
 #include <lzo/lzo1x.h>
 #include "compr.h"
--- a/compr_zlib.c
+++ b/compr_zlib.c
@@ -39,7 +39,6 @@
 #include <zlib.h>
 #undef crc32
 #include <stdio.h>
-#include <asm/types.h>
 #include <linux/jffs2.h>
 #include "common.h"
 #include "compr.h"
--- a/rbtree.h
+++ b/rbtree.h
@@ -94,8 +94,7 @@ static inline struct page * rb_insert_pa
 #ifndef	_LINUX_RBTREE_H
 #define	_LINUX_RBTREE_H
 
-#include <linux/kernel.h>
-#include <linux/stddef.h>
+#include <stddef.h>
 
 struct rb_node
 {
--- a/include/mtd/ubi-media.h
+++ b/include/mtd/ubi-media.h
@@ -30,7 +30,15 @@
 #ifndef __UBI_MEDIA_H__
 #define __UBI_MEDIA_H__
 
+#ifdef __linux__
 #include <asm/byteorder.h>
+#else
+#include <stdint.h>
+typedef uint8_t __u8;
+typedef uint16_t __be16;
+typedef uint32_t __be32;
+typedef uint64_t __be64;
+#endif
 
 /* The version of UBI images supported by this implementation */
 #define UBI_VERSION 1
--- a/mkfs.ubifs/mkfs.ubifs.h
+++ b/mkfs.ubifs/mkfs.ubifs.h
@@ -34,7 +34,14 @@
 #include <endian.h>
 #include <byteswap.h>
 #include <linux/types.h>
+#ifdef __linux__
 #include <linux/fs.h>
+#else
+# ifndef O_LARGEFILE
+#  define O_LARGEFILE 0
+# endif
+# define llseek lseek
+#endif
 
 #include <getopt.h>
 #include <sys/types.h>
--- a/mkfs.ubifs/mkfs.ubifs.c
+++ b/mkfs.ubifs/mkfs.ubifs.c
@@ -805,8 +805,8 @@ int write_leb(int lnum, int len, void *b
 		if (ubi_leb_change_start(ubi, out_fd, lnum, c->leb_size, dtype))
 			return sys_err_msg("ubi_leb_change_start failed");
 
-	if (lseek64(out_fd, pos, SEEK_SET) != pos)
-		return sys_err_msg("lseek64 failed seeking %lld",
+	if (llseek(out_fd, pos, SEEK_SET) != pos)
+		return sys_err_msg("llseek failed seeking %lld",
 				   (long long)pos);
 
 	if (write(out_fd, buf, c->leb_size) != c->leb_size)
@@ -1063,6 +1063,7 @@ static int add_inode_with_data(struct st
 
 	if (c->default_compr != UBIFS_COMPR_NONE)
 		use_flags |= UBIFS_COMPR_FL;
+#ifndef NO_NATIVE_SUPPORT
 	if (flags & FS_COMPR_FL)
 		use_flags |= UBIFS_COMPR_FL;
 	if (flags & FS_SYNC_FL)
@@ -1073,6 +1074,7 @@ static int add_inode_with_data(struct st
 		use_flags |= UBIFS_APPEND_FL;
 	if (flags & FS_DIRSYNC_FL && S_ISDIR(st->st_mode))
 		use_flags |= UBIFS_DIRSYNC_FL;
+#endif
 
 	memset(ino, 0, UBIFS_INO_NODE_SZ);
 
@@ -1142,7 +1144,9 @@ static int add_dir_inode(DIR *dir, ino_t
 		fd = dirfd(dir);
 		if (fd == -1)
 			return sys_err_msg("dirfd failed");
+#ifndef NO_NATIVE_SUPPORT
 		if (ioctl(fd, FS_IOC_GETFLAGS, &flags) == -1)
+#endif
 			flags = 0;
 	}
 
@@ -1327,10 +1331,12 @@ static int add_file(const char *path_nam
 		key_write(&key, &dn->key);
 		dn->size = cpu_to_le32(bytes_read);
 		out_len = NODE_BUFFER_SIZE - UBIFS_DATA_NODE_SZ;
+#ifndef NO_NATIVE_SUPPORT
 		if (c->default_compr == UBIFS_COMPR_NONE &&
 		    (flags & FS_COMPR_FL))
 			use_compr = UBIFS_COMPR_LZO;
 		else
+#endif
 			use_compr = c->default_compr;
 		compr_type = compress_data(buf, bytes_read, &dn->data,
 					   &out_len, use_compr);
@@ -1372,7 +1378,9 @@ static int add_non_dir(const char *path_
 		if (fd == -1)
 			return sys_err_msg("failed to open file '%s'",
 					   path_name);
+#ifndef NO_NATIVE_SUPPORT
 		if (ioctl(fd, FS_IOC_GETFLAGS, &flags) == -1)
+#endif
 			flags = 0;
 		if (close(fd) == -1)
 			return sys_err_msg("failed to close file '%s'",
--- a/mkfs.ubifs/devtable.c
+++ b/mkfs.ubifs/devtable.c
@@ -134,6 +134,7 @@ static int interpret_table_entry(const c
 	unsigned int mode = 0755, uid = 0, gid = 0, major = 0, minor = 0;
 	unsigned int start = 0, increment = 0, count = 0;
 
+	buf[1023] = 0;
 	if (sscanf(line, "%1023s %c %o %u %u %u %u %u %u %u",
 		   buf, &type, &mode, &uid, &gid, &major, &minor,
 		   &start, &increment, &count) < 0)
@@ -144,8 +145,8 @@ static int interpret_table_entry(const c
 		buf, type, mode, uid, gid, major, minor, start,
 		increment, count);
 
-	len = strnlen(buf, 1024);
-	if (len == 1024)
+	len = strlen(buf);
+	if (len == 1023)
 		return err_msg("too long path");
 
 	if (!strcmp(buf, "/"))