make it compile

svn:r923

src/common/util.c

@@ -130,7 +130,7 @@ void smartlist_intersect(smartlist_t *sl1, smartlist_t *sl2) {
 }
 
 /* remove all elements of sl2 from sl1 */
-void smartlist_subtract(smartlist_t *sl1, smartlist *sl2) {
+void smartlist_subtract(smartlist_t *sl1, smartlist_t *sl2) {
   int i;
   for(i=0; i < sl2->num_used; i++)
     smartlist_remove(sl1, sl2->list[i]);

src/common/util.h

@@ -52,7 +52,7 @@ void smartlist_remove(smartlist_t *sl, void *element);
 int smartlist_isin(smartlist_t *sl, void *element);
 int smartlist_overlap(smartlist_t *sl1, smartlist_t *sl2);
 void smartlist_intersect(smartlist_t *sl1, smartlist_t *sl2);
-void smartlist_subtract(smartlist_t *sl1, smartlist *sl2);
+void smartlist_subtract(smartlist_t *sl1, smartlist_t *sl2);
 void *smartlist_choose(smartlist_t *sl);
 
 const char *eat_whitespace(const char *s);