diff.c: don't silently ignore unknown state changes in diffs.

diff --git a/commit.h b/commit.h
index d61d084c89c72f4fe79c654db721df31c4f04224..620e936bbc70d713ac351af3a2950400579841dc 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -19,6 +19,9 @@ struct commit {
 extern const char *commit_type;
 
 struct commit *lookup_commit(unsigned char *sha1);
+struct commit *lookup_commit_reference(unsigned char *sha1);
+
+int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
 
 int parse_commit(struct commit *item);