X-Git-Url: https://git.notmuchmail.org/git?a=blobdiff_plain;f=lib%2Fnotmuch.h;h=220839b732a94ee95a37e3958d8acffb9d59162e;hb=b0b5ced82b0a8cca2bbbe7b8b8c887c68b5afff0;hp=dae041640fdb2abb9d0a53e4d69540d2bdbf6054;hpb=f5db7ad7d243785c274a99734c681e69d13313d0;p=notmuch

diff --git a/lib/notmuch.h b/lib/notmuch.h
index dae04164..220839b7 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -55,7 +55,7 @@ NOTMUCH_BEGIN_DECLS
  * The library version number.  This must agree with the soname
  * version in Makefile.local.
  */
-#define LIBNOTMUCH_MAJOR_VERSION	3
+#define LIBNOTMUCH_MAJOR_VERSION	4
 #define LIBNOTMUCH_MINOR_VERSION	1
 #define LIBNOTMUCH_MICRO_VERSION	0
 
@@ -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;
 
 /**