Mark IDLWAVE as obsolete

* lisp/obsolete/idlw-complete-structtag.el:
* lisp/obsolete/idlw-help.el:
* lisp/obsolete/idlw-shell.el:
* lisp/obsolete/idlw-toolbar.el:
* lisp/obsolete/idlwave.el: Mark as obsolete.  (Bug#71157)

* lisp/files.el (auto-mode-alist): Remove IDLWAVE entry.
* doc/emacs/programs.texi (Program Modes): Remove IDLWAVE from
list of supported languages.

doc/emacs/programs.texi

@@ -84,7 +84,6 @@ mode for the C programming language is @code{c-mode}.
 @cindex Javascript mode
 @cindex Awk mode
 @cindex C# mode
-@cindex IDLWAVE mode
 @cindex JSON mode
 @cindex SQL mode
 @cindex TypeScript mode
@@ -94,7 +93,7 @@ mode for the C programming language is @code{c-mode}.
 @cindex TOML mode
   Emacs has programming language modes for Lisp, Scheme, the
 Scheme-based DSSSL expression language, Ada, ASM, AWK, C, C++, C#,
-Elixir, Fortran, Icon, IDL (CORBA), HEEx, IDLWAVE, Java, Javascript,
+Elixir, Fortran, Icon, IDL (CORBA), HEEx, Java, Javascript,
 Lua, M4, Makefiles, Metafont (@TeX{}'s companion for font creation),
 Modula2, Object Pascal, Objective-C, Octave, Pascal, Perl, PHP, Pike,
 PostScript, Prolog, Python, Ruby, Simula, SQL, Tcl, TypeScript, Verilog,
@@ -141,10 +140,9 @@ For instance, entering C mode runs the hooks @code{prog-mode-hook} and
 @code{c-mode-hook}.  @xref{Hooks}, for information about hooks.
 
 @ifnottex
-  Separate manuals are available for the modes for Ada (@pxref{Top,,
+  Separate manuals are available for the modes for Ada (@pxref{Top,, Ada
-Ada Mode, ada-mode, Ada Mode}), C/C++/Objective C/Java/Corba
+Mode, ada-mode, Ada Mode}), C/C++/Objective C/Java/Corba IDL/Pike/AWK
-IDL/Pike/AWK (@pxref{Top, , CC Mode, ccmode, CC Mode}), Octave, VHDL,
+(@pxref{Top, , CC Mode, ccmode, CC Mode}), Octave, and VHDL.
-and IDLWAVE (@pxref{Top,, IDLWAVE, idlwave, IDLWAVE User Manual}).
 @end ifnottex
 @iftex
   The Emacs distribution contains Info manuals for the major modes for

etc/NEWS

@@ -149,6 +149,11 @@ Killed buffers stored in a register using 'buffer-to-register' are
 automatically converted to a file-query value if the buffer was visiting
 a file.
 
+** IDLWAVE has been moved to GNU ELPA.
+The version bundled with Emacs is out-of-date, and is now marked as
+obsolete.  Use 'M-x list-packages' to install the 'idlwave' package from
+GNU ELPA instead.
+
 
 * Editing Changes in Emacs 31.1
 

lisp/files.el

@@ -3052,8 +3052,6 @@ since only a single case-insensitive search through the alist is made."
      ;; Anyway, the following extensions are supported by gfortran.
      ("\\.f9[05]\\'" . f90-mode)
      ("\\.f0[38]\\'" . f90-mode)
-     ("\\.indent\\.pro\\'" . fundamental-mode) ; to avoid idlwave-mode
-     ("\\.\\(pro\\|PRO\\)\\'" . idlwave-mode)
      ("\\.srt\\'" . srecode-template-mode)
      ("\\.prolog\\'" . prolog-mode)
      ("\\.tar\\'" . tar-mode)

lisp/obsolete/idlw-complete-structtag.el

@@ -7,6 +7,7 @@
 ;; Old-Version: 1.2
 ;; Keywords: languages
 ;; Package: idlwave
+;; Obsolete-since: 31.1
 
 ;; This file is part of GNU Emacs.
 
@@ -25,6 +26,11 @@
 
 ;;; Commentary:
 
+;; NOTE: IDLWAVE has been moved to GNU ELPA.  The version bundled with
+;;       Emacs is out-of-date, marked as obsolete, and will be removed
+;;       in a future release.  Please use `M-x package-list' to install
+;;       IDLWAVE from GNU ELPA instead of using this version.
+
 ;; Completion of structure tags can be done automatically in the
 ;; shell, since the list of tags can be determined dynamically through
 ;; interaction with IDL.

lisp/obsolete/idlw-help.el

@@ -6,6 +6,7 @@
 ;;          Carsten Dominik <dominik@science.uva.nl>
 ;; Maintainer: emacs-devel@gnu.org
 ;; Package: idlwave
+;; Obsolete-since: 31.1
 
 ;; This file is part of GNU Emacs.
 
@@ -24,6 +25,11 @@
 
 ;;; Commentary:
 
+;; NOTE: IDLWAVE has been moved to GNU ELPA.  The version bundled with
+;;       Emacs is out-of-date, marked as obsolete, and will be removed
+;;       in a future release.  Please use `M-x package-list' to install
+;;       IDLWAVE from GNU ELPA instead of using this version.
+
 ;; The help link information for IDLWAVE's online help feature for
 ;; system routines is extracted automatically from the IDL
 ;; documentation, and is available, along with general routine

lisp/obsolete/idlw-shell.el

@@ -8,6 +8,7 @@
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: processes
 ;; Package: idlwave
+;; Obsolete-since: 31.1
 
 ;; This file is part of GNU Emacs.
 
@@ -25,7 +26,12 @@
 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
-;;
+
+;; NOTE: IDLWAVE has been moved to GNU ELPA.  The version bundled with
+;;       Emacs is out-of-date, marked as obsolete, and will be removed
+;;       in a future release.  Please use `M-x package-list' to install
+;;       IDLWAVE from GNU ELPA instead of using this version.
+
 ;; This mode is for IDL version 5 or later.
 ;;
 ;; Runs IDL as an inferior process of Emacs, much like the Emacs

lisp/obsolete/idlw-toolbar.el

@@ -6,6 +6,7 @@
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: processes
 ;; Package: idlwave
+;; Obsolete-since: 31.1
 
 ;; This file is part of GNU Emacs.
 
@@ -24,6 +25,11 @@
 
 ;;; Commentary:
 
+;; NOTE: IDLWAVE has been moved to GNU ELPA.  The version bundled with
+;;       Emacs is out-of-date, marked as obsolete, and will be removed
+;;       in a future release.  Please use `M-x package-list' to install
+;;       IDLWAVE from GNU ELPA instead of using this version.
+
 ;; This file implements a debugging toolbar for IDLWAVE.
 ;; It requires toolbar and xpm support.
 

lisp/obsolete/idlwave.el

@@ -8,6 +8,7 @@
 ;; Maintainer: emacs-devel@gnu.org
 ;; Version: 6.1.22
 ;; Keywords: languages
+;; Obsolete-since: 31.1
 
 ;; This file is part of GNU Emacs.
 
@@ -26,6 +27,11 @@
 
 ;;; Commentary:
 
+;; NOTE: IDLWAVE has been moved to GNU ELPA.  The version bundled with
+;;       Emacs is out-of-date, marked as obsolete, and will be removed
+;;       in a future release.  Please use `M-x package-list' to install
+;;       IDLWAVE from GNU ELPA instead of using this version.
+
 ;; IDLWAVE enables feature-rich development and interaction with IDL,
 ;; the Interactive Data Language.  It provides a compelling,
 ;; full-featured alternative to the IDLDE development environment