commit-graph: define GIT_TEST_COMMIT_GRAPH

diff --git a/commit-graph.h b/commit-graph.h
index eea62f8c0ee53b56630a1a2b0c2c716b4cd63670..5fd8ded7c68fadf086e9f2cb59664ac08e850f98 100644 (file)
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -6,6 +6,8 @@
 #include "string-list.h"
 #include "cache.h"
 
+#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
+
 struct commit;
 
 char *get_commit_graph_filename(const char *obj_dir);