Fix warning in expand_call

[Richard Kenner]

Not clear why this didn't show up in my testing, but ...

2003-04-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* calls.c (expand_call): Provide init for old_stack_pointer_delta.

*** calls.c	18 Apr 2003 22:20:55 -0000	1.266
--- calls.c	19 Apr 2003 11:54:10 -0000
*************** expand_call (exp, target, ignore)
*** 2213,2217 ****
       allocate_dynamic_stack_space. This modifies the stack_pointer_delta,
       which we then also need to save/restore along the way.  */
!   int old_stack_pointer_delta;
  
    rtx call_fusage;
--- 2213,2217 ----
       allocate_dynamic_stack_space. This modifies the stack_pointer_delta,
       which we then also need to save/restore along the way.  */
!   int old_stack_pointer_delta = 0;
  
    rtx call_fusage;