--- a/components/desktop/xscreensaver/Makefile	Thu Aug 25 12:09:20 2016 -0700
+++ b/components/desktop/xscreensaver/Makefile	Thu Aug 25 12:09:36 2016 -0700
@@ -40,6 +40,10 @@
 TPNO=			26341
 
 TEST_TARGET = $(NO_TESTS)
+
+# Needs older version of libpng, no longer available in evaluation builds.
+include $(WS_MAKE_RULES)/no-evaluation.mk
+
 include $(WS_MAKE_RULES)/common.mk
 
 # Enable additional warnings, since we've modified this code a lot