[Patches] pcre stack finalization

[Vladimir Marangozov]

The same problem (mixed mallocs) exists for the pcre stack.

The buffers md->... are allocated via PyMem_RESIZE in grow_stack(),
while in free_stack() they are released with free() instead of PyMem_DEL.

This patch fixes it.

-- 
       Vladimir MARANGOZOV          | Vladimir.Marangozov@inrialpes.fr
http://sirac.inrialpes.fr/~marangoz | tel:(+33-4)76615277 fax:76615252

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-------------------------------[ cut here ]---------------------------  
diff -cr Python-1.5.2/Modules/pypcre.c Python-1.5.2_PyMem/Modules/pypcre.c
*** Python-1.5.2/Modules/pypcre.c	Fri Feb 11 13:34:57 2000
--- Python-1.5.2_PyMem/Modules/pypcre.c	Sun Feb 13 15:23:47 2000
***************
*** 3057,3068 ****
  static int free_stack(match_data *md)
  {
  /* Free any stack space that was allocated by the call to match(). */
! if (md->off_num)    free(md->off_num); 
! if (md->offset_top) free(md->offset_top); 
! if (md->r1)         free(md->r1); 
! if (md->r2)         free(md->r2); 
! if (md->eptr)       free((char *)md->eptr); 
! if (md->ecode)      free((char *)md->ecode);
  return 0;
  }
  
--- 3058,3069 ----
  static int free_stack(match_data *md)
  {
  /* Free any stack space that was allocated by the call to match(). */
! if (md->off_num)    PyMem_DEL(md->off_num); 
! if (md->offset_top) PyMem_DEL(md->offset_top); 
! if (md->r1)         PyMem_DEL(md->r1); 
! if (md->r2)         PyMem_DEL(md->r2); 
! if (md->eptr)       PyMem_DEL((char *)md->eptr); 
! if (md->ecode)      PyMem_DEL((char *)md->ecode);
  return 0;
  }