+(defcustom notmuch-search-oldest-first t
+ "Show the oldest mail first when searching."
+ :type 'boolean
+ :group 'notmuch)
+
+;;
+
+(defun notmuch-version ()
+ "Return a string with the notmuch version number."
+ (let ((long-string
+ ;; Trim off the trailing newline.
+ (substring (shell-command-to-string
+ (concat notmuch-command " --version"))
+ 0 -1)))
+ (if (string-match "^notmuch\\( version\\)? \\(.*\\)$"
+ long-string)
+ (match-string 2 long-string)
+ "unknown")))
+
+;;
+