--- a/src/java.desktop/unix/native/common/awt/X11Color.c	Fri Mar 02 19:10:12 2018 +0100
+++ b/src/java.desktop/unix/native/common/awt/X11Color.c	Sat Mar 03 08:21:47 2018 +0100
@@ -105,7 +105,7 @@
 
 #define MACHMAPSIZE     (sizeof(machinemap) / sizeof(machinemap[0]))
 
-int getVirtCubeSize() {
+int getVirtCubeSize(void) {
     struct utsname name;
     int i, ret;