diff --git a/src/intl/charsets.c b/src/intl/charsets.c
index 984934b78..f9d728927 100644
--- a/src/intl/charsets.c
+++ b/src/intl/charsets.c
@@ -1077,7 +1077,7 @@ struct entity_cache {
 static int
 hits_cmp(const void *v1, const void *v2)
 {
-	const struct entity_cache *a = v1, *b = v2;
+	const struct entity_cache *a = (const struct entity_cache *)v1, *b = (const struct entity_cache *)v2;
 
 	if (a->hits == b->hits) return 0;
 	if (a->hits > b->hits) return -1;
@@ -1213,7 +1213,7 @@ skip:
 #endif
 	} else { /* Text entity. */
 		struct string key = INIT_STRING((char *) str, strlen);
-		struct entity *element = bsearch((void *) &key, entities,
+		struct entity *element = (struct entity *)bsearch((void *) &key, entities,
 						 N_ENTITIES,
 						 sizeof(*element),
 						 compare_entities);
@@ -1585,7 +1585,7 @@ get_cp_index(const char *name)
 #endif
 	}
 
-	codepage = fastfind_search(&ff_charsets_index, name, strlen(name));
+	codepage = (const struct codepage_desc *)fastfind_search(&ff_charsets_index, name, strlen(name));
 	if (codepage) {
 		assert(codepages <= codepage && codepage < codepages + N_CODEPAGES);
 		return (codepage - codepages) | syscp;
diff --git a/src/main/event.c b/src/main/event.c
index 487d1bab0..0f200969c 100644
--- a/src/main/event.c
+++ b/src/main/event.c
@@ -130,7 +130,7 @@ get_event_id(const char *name)
 	namelen = strlen(name);
 	item = get_hash_item(event_hash, name, namelen);
 	if (item) {
-		struct event *event = item->value;
+		struct event *event = (struct event *)item->value;
 
 		assertm(event != NULL, "Hash item with no value");
 		if_assert_failed return EVENT_NONE;
diff --git a/src/main/select.c b/src/main/select.c
index d893a7581..1b63e68bb 100644
--- a/src/main/select.c
+++ b/src/main/select.c
@@ -167,7 +167,7 @@ void
 check_bottom_halves(void)
 {
 	while (!list_empty(bottom_halves)) {
-		struct bottom_half *bh = bottom_halves.prev;
+		struct bottom_half *bh = (struct bottom_half *)bottom_halves.prev;
 		select_handler_T fn = bh->fn;
 		void *data = bh->data;
 
@@ -377,7 +377,7 @@ get_handler(int fd, enum select_handler_type tp)
 		case SELECT_HANDLER_READ:	return threads[fd].read_func;
 		case SELECT_HANDLER_WRITE:	return threads[fd].write_func;
 		case SELECT_HANDLER_ERROR:	return threads[fd].error_func;
-		case SELECT_HANDLER_DATA:	return threads[fd].data;
+		case SELECT_HANDLER_DATA:	return (select_handler_T)threads[fd].data;
 	}
 
 	INTERNAL("get_handler: bad type %d", tp);
diff --git a/src/main/timer.c b/src/main/timer.c
index 163df5ba3..e4a8a0644 100644
--- a/src/main/timer.c
+++ b/src/main/timer.c
@@ -100,7 +100,7 @@ check_timers(timeval_T *last_time)
 	}
 
 	while (!list_empty(timers)) {
-		timer = timers.next;
+		timer = (struct timer *)timers.next;
 
 		if (timeval_is_positive(&timer->interval))
 			break;