--- Makefile.am.orig	2010-07-13 21:30:02.000000000 +0200
+++ Makefile.am	2010-07-13 21:30:21.000000000 +0200
@@ -56,7 +56,7 @@ lsusb.8: $(srcdir)/lsusb.8.in
 usb-devices.1: $(srcdir)/usb-devices.1.in
 	sed 's|VERSION|$(VERSION)|g' $< >$@
 
-pkgconfigdir = $(datadir)/pkgconfig
+pkgconfigdir = $(prefix)/libdata/pkgconfig
 pkgconfig_DATA = usbutils.pc
 
 usbutils.pc: $(srcdir)/usbutils.pc.in