Another patch for 1.8.0alpha5

• Date: Thu, 11 Jan 1996 17:20:44 PST
• From:
  Pavel Curtis <pavel@parc.xerox.com>
• Reply-To:
  MOO-Cows@parc.xerox.com

If you are using the alpha-test release 1.8.0alpha5 of the LambdaMOO server,
please make the following patch.

In execute.c, in the function `unwind_stack()', at line 280 add the line marked
with a `+' sign below:

  			}
  		    }
  		  case BI_CALL:
+ 		    a = &(activ_stack[top_activ_stack]); /* TOS has changed */
  		    a->bi_func_id = bi_func_id;
  		    a->bi_func_pc = p.u.call.pc;
  		    a->bi_func_data = p.u.call.data;

This fixes a truly horrific bug discovered by Brian Buchanan, the potential
consequences of which are frightening to contemplate.  Just for the record,
this is the *third* bug Brian's reports have caused me to fix in this routine,
which is completely new in 1.8.0.  I think it's at least getting a lot more
stable as time goes by, eh Brian?  :-}

	Pavel

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