diff -ur build.orig/Makefile build.fix-prefix/Makefile
--- build.orig/Makefile	2006-10-15 16:02:38.000000000 +0200
+++ build.fix-prefix/Makefile	2010-05-11 18:08:06.982295262 +0200
@@ -1,5 +1,5 @@
 
-prefix 	= /usr/local
+prefix 	= /usr/
 
 all:
 	$(MAKE) -C doc