[PATCH 2/5] commit-graph: add missing forward declaration

[Jonathan Tan <jonathantanmy@xxxxxxxxxx>]

Signed-off-by: Jonathan Tan <jonathantanmy@xxxxxxxxxx>
---
 commit-graph.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/commit-graph.h b/commit-graph.h
index 260a468e73..7004dfdca9 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -3,6 +3,8 @@
 
 #include "git-compat-util.h"
 
+struct commit;
+
 char *get_commit_graph_filename(const char *obj_dir);
 
 /*
-- 
2.18.0.rc2.347.g0da03f3a46.dirty