6629bda6c730982c3e4602ec78ff3b0cbf701c61
braney
  Tue May 25 17:31:38 2021 -0700
implement cart editing.  Needs doc.  ;-)

diff --git src/hg/inc/hdb.h src/hg/inc/hdb.h
index d2863fc..c9515c8 100644
--- src/hg/inc/hdb.h
+++ src/hg/inc/hdb.h
@@ -1062,16 +1062,18 @@
 
 char *hdbDefaultKnownDb(char *db);
 /* Get the default knownGene database from the defaultKnown table. */
 
 char *hdbGetMasterGeneTrack(char *knownDb);
 /* Get the native gene track for a knownGene database. */
 
 boolean trackDataAccessibleHash(char *database, struct trackDb *tdb, struct hash *gbdbHash);
 /* Return TRUE if underlying data are accessible - meaning the track has either
  * a bigDataUrl with remote URL (http:// etc), a bigDataUrl with an existing local file,
  * or a database table with the same name.
  * Note: this returns FALSE for composite tracks; use this on subtracks or simple tracks. 
  *
  * if gbdbHash is not NULL, use it when looking for the file */
 
+unsigned hdbGetTrackCartVersion();
+/* Get the cart version that our current trackDb wants to use. */
 #endif /* HDB_H */