diff -ur3 samples/Makefile samples/Makefile
--- samples/Makefile Mon May 8 18:07:09 2000
+++ samples/Makefile Mon May 8 18:08:49 2000
@@ -1,6 +1,8 @@
#
# Makefile for cc65 samples
#
+# This Makefile requires GNU make
+#
# Enter the target system here
SYS = c64