Merge branch 'jc/maint-co-track'

* jc/maint-co-track:
  Enhance hold_lock_file_for_{update,append}() API
  demonstrate breakage of detached checkout with symbolic link HEAD
  Fix "checkout --track -b newbranch" on detached HEAD

Conflicts:
	builtin-commit.c

1 files changed, 2 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index ae6647e22..cdbeb48c6 100644
--- a/cache.h
+++ b/cache.h
@@ -423,6 +423,8 @@ struct lock_file {
 	char on_list;
 	char filename[PATH_MAX];
 };
+#define LOCK_DIE_ON_ERROR 1
+#define LOCK_NODEREF 2
 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
 extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
 extern int commit_lock_file(struct lock_file *);