Add "-R" flag to "diff-tree", so that it will recursively traverse a tree of trees

as it diffs them.

This makes diff-tree usable again in the new world order.

1 files changed, 4 insertions, 4 deletions

diff --git a/cache.h b/cache.h
index 1e006bfa56..4b101188d7 100644
--- a/cache.h
+++ b/cache.h
@@ -87,15 +87,15 @@ extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
 #define DATA_CHANGED    0x0020
 
 /* Return a statically allocated filename matching the sha1 signature */
-extern char *sha1_file_name(unsigned char *sha1);
+extern char *sha1_file_name(const unsigned char *sha1);
 
 /* Write a memory buffer out to the sha file */
-extern int write_sha1_buffer(unsigned char *sha1, void *buf, unsigned int size);
+extern int write_sha1_buffer(const unsigned char *sha1, void *buf, unsigned int size);
 
 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
-extern void * map_sha1_file(unsigned char *sha1, unsigned long *size);
+extern void * map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
-extern void * read_sha1_file(unsigned char *sha1, char *type, unsigned long *size);
+extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
 extern int write_sha1_file(char *buf, unsigned len, unsigned char *return_sha1);
 extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size);