From: Richard M. Stallman <rms@gnu.org>
Date: Sun, 2 Jan 2005 22:52:23 +0000 (+0000)
Subject: (Fgarbage_collect): Don't truncate_undo_list on dead buffers.
X-Git-Tag: ttn-vms-21-2-B4~2959
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=303b04121058f35726d088c600a9a0e006235e91;p=emacs.git

(Fgarbage_collect): Don't truncate_undo_list on dead buffers.
---

diff --git a/src/alloc.c b/src/alloc.c
index 429cdb5246a..a1ba6dfc513 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -4683,7 +4683,7 @@ returns nil, because real GC can't be done.  */)
 	   turned off in that buffer.  Calling truncate_undo_list on
 	   Qt tends to return NULL, which effectively turns undo back on.
 	   So don't call truncate_undo_list if undo_list is Qt.  */
-	if (! EQ (nextb->undo_list, Qt))
+	if (! NILP (nextb->name) && ! EQ (nextb->undo_list, Qt))
 	  truncate_undo_list (nextb);
 
 	/* Shrink buffer gaps, but skip indirect and dead buffers.  */