cherry-pick: handle root commits with external strategies

diff --git a/diff.h b/diff.h
index 007a0554d4b252e83e98f5578758d51ec0c6e120..42b49d8f228fd2cc680ab9a2e332819d46f2f875 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -208,10 +208,7 @@ extern void diff_change(struct diff_options *,
                        const char *fullpath,
                        unsigned dirty_submodule1, unsigned dirty_submodule2);
 
-extern void diff_unmerge(struct diff_options *,
-                        const char *path,
-                        unsigned mode,
-                        const unsigned char *sha1);
+extern struct diff_filepair *diff_unmerge(struct diff_options *, const char *path);
 
 #define DIFF_SETUP_REVERSE             1
 #define DIFF_SETUP_USE_CACHE           2