Add aliases for recent Gnus nnselect changes

* lisp/org/ol-gnus.el (org-gnus-store-link): Change 'nnir to
'nnselect.
* lisp/gnus/gnus-group.el: Define obsolete function alias for
'gnus-group-make-nnir-group to
'gnus-group-read-ephemeral-search-group.
* lisp/gnus/gnus-sum.el: Define obsolete variable alias for
'gnus-refer-thread-use-nnir to 'gnus-refer-thread-use-search.
* lisp/gnus/nnselect.el: Define obsolete variable alias for
'nnir-retrieve-headers-override-function to
'nnselect-retrieve-headers-override-function.
* lisp/gnus/nnir.el: Restore definition of 'nnir-summary-line-format
and mark obsolete.

lisp/gnus/gnus-group.el

@@ -3185,6 +3185,9 @@ mail messages or news articles in files that have numeric names."
 	       (cons 'nnselect-args
 		     (nnir-make-specs nnir-extra-parms specs)))))))))
 
+(define-obsolete-function-alias 'gnus-group-make-nnir-group
+  'gnus-group-read-ephemeral-search-group "28.1")
+
 (defun gnus-group-read-ephemeral-search-group (nnir-extra-parms &optional specs)
   "Create an nnselect group based on a search.
 Prompt for a search query and determine the groups to search as

lisp/gnus/gnus-sum.el

@@ -144,11 +144,14 @@ If t, fetch all the available old headers."
   :type '(choice number
 		 (sexp :menu-tag "other" t)))
 
+(define-obsolete-variable-alias 'gnus-refer-thread-use-nnir
+  'gnus-refer-thread-use-search "28.1")
+
 (defcustom gnus-refer-thread-use-search nil
   "Search an entire server when referring threads.
 A nil value will only search for thread-related articles in the
 current group."
-  :version "24.1"
+  :version "28.1"
   :group 'gnus-thread
   :type 'boolean)
 

lisp/gnus/nnir.el

@@ -211,6 +211,26 @@ By default this is the name of an email header field.")
   "Search groups in Gnus with assorted search engines."
   :group 'gnus)
 
+(make-obsolete-variable 'nnir-summary-line-format "The formating
+specs previously unique to this variable may now be set in
+'gnus-summary-line-format." "28.1")
+
+(defcustom nnir-summary-line-format nil
+  "The format specification of the lines in an nnir summary buffer.
+
+All the items from `gnus-summary-line-format' are available, along
+with three items unique to nnir summary buffers:
+
+%Z    Search retrieval score value (integer)
+%G    Article original full group name (string)
+%g    Article original short group name (string)
+
+If nil this will use `gnus-summary-line-format'."
+  :version "24.1"
+  :type '(choice (const :tag "gnus-summary-line-format" nil) string)
+  :group 'nnir)
+
+
 (defcustom nnir-ignored-newsgroups ""
   "Newsgroups to skip when searching.
 Any newsgroup in the active file matching this regexp will be

lisp/gnus/nnselect.el

@@ -238,6 +238,9 @@ as `(keyfunc member)' and the corresponding element is just
   "Virtual groups in Gnus with arbitrary selection methods."
   :group 'gnus)
 
+(define-obsolete-variable-alias 'nnir-retrieve-headers-override-function
+  'nnselect-retrieve-headers-override-function "28.1")
+
 (defcustom nnselect-retrieve-headers-override-function nil
   "A function that retrieves article headers for ARTICLES from GROUP.
 The retrieved headers should populate the `nntp-server-buffer'.
@@ -245,8 +248,7 @@ Returns either the retrieved header format 'nov or 'headers.
 
 If this variable is nil, or if the provided function returns nil,
   `gnus-retrieve-headers' will be called instead."
-  :version "24.1" :type '(function) :group 'nnselect)
-
+  :version "28.1" :type '(function) :group 'nnselect)
 
 ;; Gnus backend interface functions.
 

lisp/org/ol-gnus.el

@@ -34,7 +34,7 @@
 (require 'gnus-sum)
 (require 'gnus-util)
 (require 'nnheader)
-(require 'nnir)
+(require 'nnselect)
 (require 'ol)
 
 
@@ -140,9 +140,9 @@ If `org-store-link' was called with a prefix arg the meaning of
 	       (`(nnvirtual . ,_)
 		(save-excursion
 		  (car (nnvirtual-map-article (gnus-summary-article-number)))))
-	       (`(nnir . ,_)
+	       (`(nnselect . ,_)
 		(save-excursion
-		  (nnir-article-group (gnus-summary-article-number))))
+		  (nnselect-article-group (gnus-summary-article-number))))
 	       (_ gnus-newsgroup-name)))
 	    (header (if (eq major-mode 'gnus-article-mode)
 			;; When in an article, first move to summary