diff -Nur nant-0.90.orig//etc/nant.pc.in nant-0.90/etc/nant.pc.in
--- nant-0.90.orig//etc/nant.pc.in	2008-11-03 07:56:55.000000000 -0600
+++ nant-0.90/etc/nant.pc.in	2010-07-07 03:23:29.811833713 -0500
@@ -1,4 +1,4 @@
-prefix=${pcfiledir}/../..
+prefix=/usr
 extensiondir=${prefix}/share/NAnt/bin/extensions
 libdir=${prefix}/share/NAnt/bin/lib