--- a/components/hplip/Makefile	Fri Jul 22 11:44:25 2016 -0700
+++ b/components/hplip/Makefile	Mon Jul 25 07:43:36 2016 -0700
@@ -89,6 +89,7 @@
 
 system-test:    $(NO_TESTS)
 
+# libusb-1 is needed on S12; libusb is needed on S11, so list both.
 REQUIRED_PACKAGES += image/library/libjpeg
 REQUIRED_PACKAGES += library/libusb-1
 REQUIRED_PACKAGES += library/print/cups-libs
@@ -96,4 +97,5 @@
 REQUIRED_PACKAGES += system/library/c++-runtime
 REQUIRED_PACKAGES += system/library/libdbus
 REQUIRED_PACKAGES += system/library/math
+REQUIRED_PACKAGES += system/library/usb/libusb
 REQUIRED_PACKAGES += system/management/snmp/net-snmp