patch 7.4.2015
Problem:    When a file gets a name when writing it 'acd' is not effective.
            (Dan Church)
Solution:   Invoke DO_AUTOCHDIR after writing the file. (Allen Haim, closes
            #777, closes #803)  Add test_autochdir() to enable 'acd' before
            "starting" is reset.
diff --git a/src/globals.h b/src/globals.h
index 68bf36f..879255c 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -635,6 +635,9 @@
 EXTERN int	really_exiting INIT(= FALSE);
 				/* TRUE when we are sure to exit, e.g., after
 				 * a deadly signal */
+#if defined(FEAT_AUTOCHDIR)
+EXTERN int	test_autochdir INIT(= FALSE);
+#endif
 #if defined(EXITFREE)
 EXTERN int	entered_free_all_mem INIT(= FALSE);
 				/* TRUE when in or after free_all_mem() */