diff -u  pbx.c.old pbx.c
diff -u  pbx.c.old pbx.c
--- pbx.c.old	Fri Jul 23 14:32:51 2004
+++ pbx.c	Fri Jul 23 14:33:05 2004
@@ -1103,7 +1103,7 @@
 			whereweare += ( len + 3);
 			
 			/* Store variable name (and truncate) */
-			var = (char*)malloc(len + 1);
+			var = (char*)alloca(len + 1);
 			memcpy(var, vars, len);
 			var[len] = 0;
 			
@@ -1124,7 +1124,6 @@
 				cp2 += length;
 				*cp2 = 0;
 			}
-			free(var);
 		} else if (nextexp) {
 			/* We have an expression.  Find the start and end, and determine
 			   if we are going to have to recursively call ourselves on the
@@ -1157,7 +1156,7 @@
 			whereweare += ( len + 3);
 			
 			/* Store variable name (and truncate) */
-			var = (char*)malloc(len + 1);
+			var = (char*)alloca(len + 1);
 			memcpy(var, vars, len);
 			var[len] = 0;