X-Git-Url: http://rtime.felk.cvut.cz/gitweb/notmuch.git/blobdiff_plain/f5db7ad7d243785c274a99734c681e69d13313d0..bc9c50602d20ce712188ea2cc3c5d30647d4d3f5:/lib/notmuch.h

diff --git a/lib/notmuch.h b/lib/notmuch.h
index dae04164..92594b9d 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -1221,7 +1221,14 @@ notmuch_message_get_filenames (notmuch_message_t *message);
  */
 typedef enum _notmuch_message_flag {
     NOTMUCH_MESSAGE_FLAG_MATCH,
-    NOTMUCH_MESSAGE_FLAG_EXCLUDED
+    NOTMUCH_MESSAGE_FLAG_EXCLUDED,
+
+    /* This message is a "ghost message", meaning it has no filenames
+     * or content, but we know it exists because it was referenced by
+     * some other message.  A ghost message has only a message ID and
+     * thread ID.
+     */
+    NOTMUCH_MESSAGE_FLAG_GHOST,
 } notmuch_message_flag_t;
 
 /**