--- Makefile.in.orig	2010-07-13 21:50:47.000000000 +0200
+++ Makefile.in	2010-07-13 21:51:39.000000000 +0200
@@ -223,7 +223,7 @@ EXTRA_DIST = \
 	usb-devices \
 	usbutils.pc.in
 
-pkgconfigdir = $(datadir)/pkgconfig
+pkgconfigdir = $(prefix)/libdata/pkgconfig
 pkgconfig_DATA = usbutils.pc
 DISTCLEANFILES = \
 	usb.ids.gz \