diff --git a/src/java/com/threerings/util/keybd/Mac OS X/Makefile b/src/java/com/threerings/util/keybd/Mac OS X/Makefile
new file mode 100644
index 000000000..0fe6ecb04
--- /dev/null
+++ b/src/java/com/threerings/util/keybd/Mac OS X/Makefile	
@@ -0,0 +1,7 @@
+#
+# $Id: Makefile 3331 2005-02-03 01:25:21Z mdb $
+#
+# Placeholder Makefile
+
+install: 
+	@echo Nothing to see here. Move it along.
diff --git a/src/java/com/threerings/util/signal/Mac OS X/Makefile b/src/java/com/threerings/util/signal/Mac OS X/Makefile
new file mode 100644
index 000000000..0fe6ecb04
--- /dev/null
+++ b/src/java/com/threerings/util/signal/Mac OS X/Makefile	
@@ -0,0 +1,7 @@
+#
+# $Id: Makefile 3331 2005-02-03 01:25:21Z mdb $
+#
+# Placeholder Makefile
+
+install: 
+	@echo Nothing to see here. Move it along.
diff --git a/src/java/com/threerings/util/unsafe/Mac OS X/Makefile b/src/java/com/threerings/util/unsafe/Mac OS X/Makefile
new file mode 100644
index 000000000..0fe6ecb04
--- /dev/null
+++ b/src/java/com/threerings/util/unsafe/Mac OS X/Makefile	
@@ -0,0 +1,7 @@
+#
+# $Id: Makefile 3331 2005-02-03 01:25:21Z mdb $
+#
+# Placeholder Makefile
+
+install: 
+	@echo Nothing to see here. Move it along.