--- tigervnc-1.7.1/java/com/tigervnc/decoder/Makefile.orig	2017-10-26 01:26:24.903059400 +0000
+++ tigervnc-1.7.1/java/com/tigervnc/decoder/Makefile	2017-10-26 01:27:04.782766225 +0000
@@ -1,6 +1,6 @@
 
 JC = javac
-JCFLAGS = -target 1.7 -classpath ../../../
+JCFLAGS = -source 1.7 -target 1.7 -classpath ../../../
 
 SOURCES = \
 	common/Repaintable.java \