--- a/src/java.instrument/unix/native/libinstrument/FileSystemSupport_md.c	Fri Mar 02 19:10:12 2018 +0100
+++ b/src/java.instrument/unix/native/libinstrument/FileSystemSupport_md.c	Sat Mar 03 08:21:47 2018 +0100
@@ -34,7 +34,7 @@
 
 #define slash           '/'
 
-char pathSeparator() {
+char pathSeparator(void) {
     return ':';
 }