+2004-05-22 Kim F. Storm <storm@cua.dk>
+
+ * alloc.c (struct backtrace): Add debug_on_exit member.
+ (Fgarbage_collect): Clear out buffer undo_list markers after gc_sweep.
+ Identify those markers as Lisp_Misc_Free objects. Clear car and cdr of
+ the removed cons cells.
+ (mark_object): Undo previous change - disallow Lisp_Misc_Free objects.
+ (gc_sweep): Clear cons_blocks before sweeping strings, so we don't have
+ any cons cells pointing to unallocated stings.
+ Do not lisp_free any marker blocks, as there may still be pointers
+ to them from buffer undo lists at this stage of GC.
+
+ * keyboard.c (struct backtrace): Add debug_on_exit member.
+ (Fcommand_execute): Clear it.
+
2004-05-20 Luc Teirlinck <teirllm@auburn.edu>
* intervals.c (lookup_char_property): Do not prematurely return nil.
Add support for new '\_<' and '\_>' regexp operators, matching the
beginning and ends of symbols.
+
* regex.c (enum syntaxcode): Add Ssymbol.
(init_syntax_once): Set the syntax for '_' to Ssymbol, not Sword.
(re_opcode_t): New opcodes `symbeg' and `symend'.