Patch for 970904 snapshot

[Weiwen Liu]

This patch for gcc/bitmap.c can not be applied.
The patch is supposed to change from line 26 to 31, but the contents there
are different from the original file in the patch.  The contents are

#include "regs.h"
#include "basic-block.h"

/* The contents of the current function definition are allocated
   in this obstack, and all are freed at the end of the function.
   For top-level functions, this is temporary_obstack.

In the patch, the original contents are

  #include "regs.h"
  #include "basic-block.h"
  
  /* Obstack to allocate bitmap elements from.  */
  static struct obstack bitmap_obstack;
  static int bitmap_obstack_init = FALSE;