--- uae/src/include/filesys.h	2018/04/24 16:40:12	1.1
+++ uae/src/include/filesys.h	2018/04/24 16:45:08	1.1.1.3
@@ -20,7 +20,10 @@ struct hardfiledata {
     int secspertrack;
     int surfaces;
     int reservedblocks;
+    int blocksize;
     FILE *fd;
 };
 
+struct uaedev_mount_info;
+
 extern struct hardfiledata *get_hardfile_data (int nr);