--- xcb-proto-1.6.orig/xcb-proto.pc.in	2008-08-27 10:12:22.000000000 +0200
+++ xcb-proto-1.6/xcb-proto.pc.in	2011-01-24 16:11:29.000000000 +0100
@@ -1,6 +1,6 @@
 prefix=@prefix@
 datarootdir=@datarootdir@
-datadir=@datadir@
+datadir=${prefix}/../@datadir@
 xcbincludedir=@xcbincludedir@
 pythondir=@pythondir@