Patch to use Doug Lea's malloc

[Chip Salzenberg]

According to Jason Merrill:
> Wed Feb 10 23:51:35 1999  Jason Merrill  <jason@yorick.cygnus.com>
> 	* malloc.c: New file.
> 	* Makefile.in (OBJS): Add malloc.o.

Hm, I can't tell -- is its use unconditional?  You might fall afoul of
odd linker name conflict rules in OS/2 and VMS if you're not careful.
-- 
Chip Salzenberg      - a.k.a. -      <chip@perlsupport.com>
      "When do you work?"   "Whenever I'm not busy."