* src/eval.c (handlerlist_sentinel): New variable.

(init_eval): Use it to ensure handlerlist is non-NULL.
(unwind_to_catch): Make sure we never set handlerlist to NULL.
(Fsignal): Adjust NULLness test of handlerlist.
* src/lisp.h (PUSH_HANDLER): Assume handlerlist is non-NULL.

Fixes: debbugs:15802

1 files changed, 9 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e47f6a63740..e23af26f543 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2013-11-05  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+        * eval.c (handlerlist_sentinel): New variable (bug#15802).
+        (init_eval): Use it to ensure handlerlist is non-NULL.
+        (unwind_to_catch): Make sure we never set handlerlist to NULL.
+        (Fsignal): Adjust NULLness test of handlerlist.
+
+        * lisp.h (PUSH_HANDLER): Assume handlerlist is non-NULL.
+
 2013-11-05  Eli Zaretskii  <eliz@gnu.org>
 
         * callproc.c (call_process): Call prepare_to_modify_buffer before