update packages

lisp/org/oc-natbib.el

@@ -1,6 +1,6 @@
 ;;; oc-natbib.el --- Citation processor using natbib LaTeX package  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2021-2023 Free Software Foundation, Inc.
+;; Copyright (C) 2021-2025 Free Software Foundation, Inc.
 
 ;; Author: Nicolas Goaziou <mail@nicolasgoaziou.fr>
 
@@ -48,7 +48,7 @@
 
 (require 'oc)
 
-(declare-function org-element-property "org-element" (property element))
+(declare-function org-element-property "org-element-ast" (property node))
 
 (declare-function org-export-data "org-export" (data info))
 
@@ -77,6 +77,15 @@ If \"natbib\" package is already required in the document, e.g., through
     (const :tag "redefine \\thebibliography to issue \\section* instead of \\chapter*" sectionbib)
     (const :tag "keep all the authors' names in a citation on one line" nonamebreak)))
 
+(defcustom org-cite-natbib-bibliography-style 'unsrtnat
+  "Default bibliography style."
+  :group 'org-cite
+  :package-version '(Org . "9.7")
+  :type
+  '(choice
+    (const unsrtnat)
+    (symbol :tag "Other")))
+
 
 ;;; Internal functions
 (defun org-cite-natbib--style-to-command (style)
@@ -143,11 +152,13 @@ CITATION is the citation object.  INFO is the export state, as a property list."
   "Print references from bibliography FILES.
 FILES is a list of absolute file names.  STYLE is the bibliography style, as
 a string or nil."
-  (concat (and style (format "\\bibliographystyle{%s}\n" style))
-          (format "\\bibliography{%s}"
-                  (mapconcat #'file-name-sans-extension
-                             files
-                             ","))))
+  (concat
+   (format "\\bibliographystyle{%s}\n"
+           (or style org-cite-natbib-bibliography-style))
+   (format "\\bibliography{%s}"
+           (mapconcat #'file-name-sans-extension
+                      files
+                      ","))))
 
 (defun org-cite-natbib-export-citation (citation style _ info)
   "Export CITATION object.