--- a/components/libusb/wrapper/Makefile	Tue Apr 11 20:19:32 2017 -0700
+++ b/components/libusb/wrapper/Makefile	Wed Apr 12 14:48:14 2017 -0700
@@ -20,7 +20,7 @@
 #
 
 #
-# Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
 #
 include ../../../make-rules/shared-macros.mk
 
@@ -49,8 +49,6 @@
 
 ASLR_MODE = $(ASLR_NOT_APPLICABLE)
 
-CLEAN_PATHS +=	$(SOURCE_DIR)/.prep
-
 $(BUILD_DIR)/libusb-64.pc:	src/libusb-64.pc
 	/bin/sed -e "s#MACH64#$(MACH64)#g" <$< >$@