lib: define NOTMUCH_DEPRECATED macro, document its use.

[notmuch] / lib / notmuch.h

diff --git a/lib/notmuch.h b/lib/notmuch.h
index 20c4e0190c5cdc2f9e5d5464e9ab67192d424534..9b5046b423c43963882d7af3c3cfb043786033e9 100644 (file)
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -59,6 +59,8 @@ NOTMUCH_BEGIN_DECLS
 #define LIBNOTMUCH_MINOR_VERSION       2
 #define LIBNOTMUCH_MICRO_VERSION       0
 
+#define NOTMUCH_DEPRECATED(major,minor) \
+    __attribute__ ((deprecated ("function deprecated as of libnotmuch " #major "." #minor)))
 #endif /* __DOXYGEN__ */
 
 /**
@@ -163,6 +165,11 @@ typedef enum _notmuch_status {
      * The operation requires a database upgrade.
      */
     NOTMUCH_STATUS_UPGRADE_REQUIRED,
+    /**
+     * There is a problem with the proposed path, e.g. a relative path
+     * passed to a function expecting an absolute path.
+     */
+    NOTMUCH_STATUS_PATH_ERROR,
     /**
      * Not an actual status value. Just a way to find out how many
      * valid status values there are.