-extern void diff_setup(int detect_rename, int minimum_score,
- char *pickaxe,
- int reverse, int raw_output,
- const char **spec, int cnt);
+#define DIFF_SETUP_REVERSE 1
+#define DIFF_SETUP_USE_CACHE 2
+#define DIFF_SETUP_USE_SIZE_CACHE 4
+extern void diff_setup(int flags);
+
+#define DIFF_DETECT_RENAME 1
+#define DIFF_DETECT_COPY 2
+
+extern void diffcore_rename(int rename_copy, int minimum_score);
+
+#define DIFF_PICKAXE_ALL 1
+extern void diffcore_pickaxe(const char *needle, int opts);
+
+extern void diffcore_pathspec(const char **pathspec);
+
+extern void diffcore_order(const char *orderfile);
+
+extern void diffcore_break(int max_score);
+
+extern void diffcore_std(const char **paths,
+ int detect_rename, int rename_score,
+ const char *pickaxe, int pickaxe_opts,
+ int break_opt,
+ const char *orderfile);
+
+extern int diff_queue_is_empty(void);
+
+#define DIFF_FORMAT_HUMAN 0
+#define DIFF_FORMAT_MACHINE 1
+#define DIFF_FORMAT_PATCH 2
+#define DIFF_FORMAT_NO_OUTPUT 3