commit 1b88eda687913a3a355a010ed0483bfcfce28301
Author: Tassilo Horn <tsdh@gnu.org>
Date:   Fri May 17 22:07:10 2019 +0200

    Fix autoload generation code (bug#35758)
    
    * Makefile.in (AUTOLOAD,PREVIEW_AUTOLOAD): Use arg instead of
      generated-autoload-file (bug#35758).

diff --git a/Makefile.in b/Makefile.in
index 822eea9f..74659f7a 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -52,12 +52,15 @@ PACKAGE=auctex
 PACKAGE_INFO=auctex preview-latex
 EMACS=@EMACS@
 ELCC=$(EMACS) -batch -q -no-site-file -no-init-file -l lpath.el
-AUTOLOAD=--eval '(let ((generated-autoload-file (expand-file-name "$@"))) \
-  (mapcar (function update-file-autoloads) command-line-args-left) \
+AUTOLOAD=--eval '(let ((autoload-file (expand-file-name "$@"))) \
+  (mapcar (lambda (file) \
+            (update-file-autoloads file nil autoload-file)) \
+          command-line-args-left) \
   (save-buffers-kill-emacs t))'
 
-PREVIEW_AUTOLOAD=--eval '(let ((generated-autoload-file (expand-file-name "$@"))) \
-		(update-file-autoloads "preview.el")(save-buffers-kill-emacs t))'
+PREVIEW_AUTOLOAD=--eval '(let ((autoload-file (expand-file-name "$@"))) \
+  (update-file-autoloads "preview.el" nil autoload-file) \
+  (save-buffers-kill-emacs t))'
 
 # Files and directories excluded from distributed tar ball.
 EXCLUDEDFILES=autogen.sh .gitignore doc/.gitignore doc/tex-ref.log \