--- a/src/java.desktop/unix/native/libawt/awt/awt_Mlib.c	Fri Mar 02 19:10:12 2018 +0100
+++ b/src/java.desktop/unix/native/libawt/awt/awt_Mlib.c	Sat Mar 03 08:21:47 2018 +0100
@@ -137,11 +137,11 @@
     return ret;
 }
 
-mlib_start_timer awt_setMlibStartTimer() {
+mlib_start_timer awt_setMlibStartTimer(void) {
     return start_timer;
 }
 
-mlib_stop_timer awt_setMlibStopTimer() {
+mlib_stop_timer awt_setMlibStopTimer(void) {
     return stop_timer;
 }