unsigned old_mode, unsigned new_mode,
                 const unsigned char *old_sha1,
                 const unsigned char *new_sha1,
-                const char *fullpath);
+                const char *fullpath,
+                unsigned old_dirty_submodule, unsigned new_dirty_submodule);
 
 typedef void (*add_remove_fn_t)(struct diff_options *options,
                    int addremove, unsigned mode,
                    const unsigned char *sha1,
-                   const char *fullpath);
+                   const char *fullpath, unsigned dirty_submodule);
 
 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
                struct diff_options *options, void *data);
                           int addremove,
                           unsigned mode,
                           const unsigned char *sha1,
-                          const char *fullpath);
+                          const char *fullpath, unsigned dirty_submodule);
 
 extern void diff_change(struct diff_options *,
                        unsigned mode1, unsigned mode2,
                        const unsigned char *sha1,
                        const unsigned char *sha2,
-                       const char *fullpath);
+                       const char *fullpath,
+                       unsigned dirty_submodule1, unsigned dirty_submodule2);
 
 extern void diff_unmerge(struct diff_options *,
                         const char *path,
 #define DIFF_PICKAXE_REGEX     2
 
 extern void diffcore_std(struct diff_options *);
+extern void diffcore_fix_diff_index(struct diff_options *);
 
 #define COMMON_DIFF_OPTIONS_HELP \
 "\ncommon diff options:\n" \