diff --git a/src/ecmascript/spidermonkey/console.c b/src/ecmascript/spidermonkey/console.c
index e29f5f4c0..d829799e9 100644
--- a/src/ecmascript/spidermonkey/console.c
+++ b/src/ecmascript/spidermonkey/console.c
@@ -33,8 +33,6 @@
 
 #define DEBUG 0
 
-static bool console_get_property(JSContext *ctx, JS::HandleObject hobj, JS::HandleId hid, JS::MutableHandleValue hvp);
-
 JSClassOps console_ops = {
 	nullptr,  // addProperty
 	nullptr,  // deleteProperty
@@ -56,23 +54,6 @@ const JSClass console_class = {
 	&console_ops
 };
 
-/* @console_class.getProperty */
-static bool
-console_get_property(JSContext *ctx, JS::HandleObject hobj, JS::HandleId hid, JS::MutableHandleValue hvp)
-{
-#ifdef ECMASCRIPT_DEBUG
-	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
-#endif
-
-	JSObject *parent_win;	/* instance of @window_class */
-	struct view_state *vs;
-	struct document_view *doc_view;
-	struct document *document;
-	struct session *ses;
-
-	return true;
-}
-
 static bool console_error(JSContext *ctx, unsigned int argc, JS::Value *vp);
 static bool console_log(JSContext *ctx, unsigned int argc, JS::Value *vp);
 
@@ -85,7 +66,6 @@ const spidermonkeyFunctionSpec console_funcs[] = {
 static bool
 console_log_common(JSContext *ctx, unsigned int argc, JS::Value *vp, const char *log_filename)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	JS::CallArgs args = CallArgsFromVp(argc, vp);
 
 	if (argc != 1 || !log_filename)
@@ -96,7 +76,7 @@ console_log_common(JSContext *ctx, unsigned int argc, JS::Value *vp, const char
 
 	if (get_opt_bool("ecmascript.enable_console_log", NULL))
 	{
-		unsigned char *key = jsval_to_string(ctx, args[0]);
+		char *key = jsval_to_string(ctx, args[0]);
 
 		FILE *f = fopen(log_filename, "a");
 
diff --git a/src/ecmascript/spidermonkey/heartbeat.c b/src/ecmascript/spidermonkey/heartbeat.c
index 5a9dc01dc..0b71df79e 100644
--- a/src/ecmascript/spidermonkey/heartbeat.c
+++ b/src/ecmascript/spidermonkey/heartbeat.c
@@ -42,7 +42,7 @@ heartbeat_callback(JSContext *ctx)
 		return true;
 	}
 
-	struct ecmascript_interpreter *interpreter = JS::GetRealmPrivate(comp);
+	struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS::GetRealmPrivate(comp);
 
 	if (!interpreter || !interpreter->heartbeat || interpreter->heartbeat->ttl > 0) {
 		return true;
@@ -74,7 +74,7 @@ check_heartbeats(void *data)
 
 				ecmascript_timeout_dialog(term, max_exec_time);
 			}
-			JS_RequestInterruptCallback(hb->interpreter->backend_data);
+			JS_RequestInterruptCallback((JSContext *)hb->interpreter->backend_data);
 		}
 	}
 	install_signal_handler(SIGVTALRM, check_heartbeats, NULL, 1);
diff --git a/src/ecmascript/spidermonkey/util.h b/src/ecmascript/spidermonkey/util.h
index 12bcb90f7..a2ebf5747 100644
--- a/src/ecmascript/spidermonkey/util.h
+++ b/src/ecmascript/spidermonkey/util.h
@@ -8,7 +8,6 @@ static void string_to_jsval(JSContext *ctx, JS::Value *vp, char *string);
 static void astring_to_jsval(JSContext *ctx, JS::Value *vp, char *string);
 
 static int jsval_to_boolean(JSContext *ctx, JS::Value *vp);
-static void jshandle_value_to_char_string(struct string *string, JSContext *ctx, JS::HandleValue obj);
 
 /** Inline functions */
 
@@ -40,7 +39,7 @@ jsval_to_boolean(JSContext *ctx, JS::Value *vp)
 /* Since SpiderMonkey 52 the Mutable Handle Object
  * is different for String and Number and must be
  * handled accordingly */
-void
+static inline void
 jshandle_value_to_char_string(struct string *string, JSContext *ctx, JS::HandleValue obj)
 {
 	if (!init_string(string)) {