Fix bug #16099 with failed out-of-tree builds on MS-Windows.

 lisp/Makefile.in (autoloads): Run $(srcdir)/loaddefs.el through
 unmsys--file-name.

2 files changed, 6 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index f61812f7e1a..59ffe0ea5c4 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2013-12-10  Eli Zaretskii  <eliz@gnu.org>
+
+        * Makefile.in (autoloads): Run $(srcdir)/loaddefs.el through
+        unmsys--file-name.  (Bug#16099)
+
 2013-12-10  Teodor Zlatanov  <tzz@lifelogs.com>
 
         * emacs-lisp/package.el (package-keyword-button-action): Remove
diff --git a/lisp/Makefile.in b/lisp/Makefile.in
index 9c9eacfd386..3675cd90e46 100644
--- a/lisp/Makefile.in
+++ b/lisp/Makefile.in
@@ -183,7 +183,7 @@ autoloads: $(LOADDEFS) doit
         echo Directories: $$wins; \
         $(emacs) -l autoload \
             --eval '(setq autoload-builtin-package-versions t)' \
-            --eval '(setq generated-autoload-file (expand-file-name "$(srcdir)/loaddefs.el"))' \
+            --eval '(setq generated-autoload-file (expand-file-name (unmsys--file-name "$(srcdir)/loaddefs.el")))' \
             -f batch-update-autoloads $$wins
 
 # This is required by the bootstrap-emacs target in ../src/Makefile, so