-pci_db_SOURCES = $(usb_db_SOURCES)
-pci_db_CPPFLAGS = $(AM_CPPFLAGS) -DPCI_DATABASE=\"$(PCI_DATABASE)\" -DBUILD_FOR_PCI
-pci_db_LDADD = $(top_builddir)/libudev/libudev.la
+usb_db_CPPFLAGS = \
+ $(AM_CPPFLAGS) -DUSB_DATABASE=\"$(USB_DATABASE)\" -DBUILD_FOR_USB
+
+usb_db_LDADD = \
+ $(top_builddir)/libudev/libudev.la
+
+
+pci_db_SOURCES = \
+ $(usb_db_SOURCES)
+
+pci_db_CPPFLAGS = \
+ $(AM_CPPFLAGS) -DPCI_DATABASE=\"$(PCI_DATABASE)\" -DBUILD_FOR_PCI
+
+pci_db_LDADD = \
+ $(top_builddir)/libudev/libudev.la