1 files changed, 0 insertions, 1 deletions
diff --git a/cache.h b/cache.h
index 2696e8e0e9..765438d8f8 100644
--- a/cache.h
+++ b/cache.h
@@ -162,7 +162,6 @@ extern char *sha1_file_name(const unsigned char *sha1);
 extern void * map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern int unpack_sha1_header(z_stream *stream, void *map, unsigned long mapsize, void *buffer, unsigned long size);
 extern int parse_sha1_header(char *hdr, char *type, unsigned long *sizep);
-extern int sha1_delta_base(const unsigned char *, unsigned char *);
 extern int sha1_file_size(const unsigned char *, unsigned long *);
 extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);