--- gforth/backtrac.fs	2003/01/04 08:26:57	1.6
+++ gforth/backtrac.fs	2004/11/28 20:35:06	1.10
@@ -1,6 +1,6 @@
 \ backtrace handling
 
-\ Copyright (C) 1999,2000 Free Software Foundation, Inc.
+\ Copyright (C) 1999,2000,2003 Free Software Foundation, Inc.
 
 \ This file is part of Gforth.
 
@@ -43,7 +43,8 @@ end-struct buffer%
 
 \ backtrace stuff
 
-create backtrace-rs-buffer buffer% %allot \ copy of the return stack at throw
+create backtrace-rs-buffer buffer% %allot drop
+\ copy of the return stack at throw
 
 : init-backtrace ( -- )
     backtrace-rs-buffer init-buffer ;
@@ -80,7 +81,7 @@ IS store-backtrace
 : print-bt-entry ( return-stack-item -- )
     cell - dup in-dictionary? over dup aligned = and
     if
-	@ dup threaded>name if
+	@ dup threaded>name dup if
 	    .name drop
 	else
 	    drop dup look if
@@ -110,3 +111,7 @@ IS store-backtrace
 :noname ( -- )
     backtrace-rs-buffer 2@ over + print-backtrace ;
 IS dobacktrace
+
+:noname
+    r@ >stderr cr ." deferred word " print-bt-entry ." is uninitialized" ;
+is defer-default