diff --git a/src/ntfs_dir.c b/src/ntfs_dir.c
index c7b6d3ad..08a2c970 100644
--- a/src/ntfs_dir.c
+++ b/src/ntfs_dir.c
@@ -259,12 +259,14 @@ static int ntfs_td_list_entry(  struct ntfs_dir_struct *ls, const ntfschar *name
 #ifdef DJGPP
       new_file->file_size=filesize;
 #endif
+#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
       new_file->stat.st_blksize=DEFAULT_SECTOR_SIZE;
 #ifdef HAVE_STRUCT_STAT_ST_BLOCKS
       if(new_file->stat.st_blksize!=0)
       {
 	new_file->stat.st_blocks=(filesize + new_file->stat.st_blksize - 1) / new_file->stat.st_blksize;
       }
+#endif
 #endif
       new_file->stat.st_atime=td_ntfs2utc(sle64_to_cpu(si->last_access_time));
       new_file->stat.st_mtime=td_ntfs2utc(sle64_to_cpu(si->last_data_change_time));
diff --git a/src/ntfs_io.c b/src/ntfs_io.c
index 96f30af6..ce4cefc4 100644
--- a/src/ntfs_io.c
+++ b/src/ntfs_io.c
@@ -147,7 +147,9 @@ static int ntfs_device_testdisk_io_sync(struct ntfs_device *dev)
 static int ntfs_device_testdisk_io_stat(struct ntfs_device *dev, struct stat *buf)
 {
 	log_warning("ntfs_device_testdisk_io_stat() unimplemented\n");
+#ifdef ENOTSUP
 	errno = ENOTSUP;
+#endif
 	return -1;
 }
 
@@ -155,7 +157,9 @@ static int ntfs_device_testdisk_io_ioctl(struct ntfs_device *dev, int request,
 		void *argp)
 {
 	log_warning( "ntfs_device_testdisk_io_ioctl() unimplemented\n");
+#ifdef ENOTSUP
 	errno = ENOTSUP;
+#endif
 	return -1;
 }