travis-ci: switch to Xcode 10.1 macOS image

diff --git a/reachable.h b/reachable.h
index 141fe308790eddfda3e731453dd92e2eb8ef0c01..18b0f9f2f0df0b6cceb67bc0eee81244e3c8a114 100644 (file)
--- a/reachable.h
+++ b/reachable.h
@@ -2,7 +2,11 @@
 #define REACHEABLE_H
 
 struct progress;
+struct rev_info;
+
+extern int add_unseen_recent_objects_to_traversal(struct rev_info *revs,
+                                                 timestamp_t timestamp);
 extern void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
-                                  unsigned long mark_recent, struct progress *);
+                                  timestamp_t mark_recent, struct progress *);
 
 #endif