travis-ci: record and skip successfully built trees

diff --git a/commit.h b/commit.h
index 3488a285b1ddace67c0a36925268fcb62f8cc5e3..4127c298cb1370a9ab56ca9d003e853b3e26b67e 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -17,7 +17,7 @@ struct commit {
        struct object object;
        void *util;
        unsigned int index;
-       unsigned long date;
+       timestamp_t date;
        struct commit_list *parents;
        struct tree *tree;
 };