diff -aur rcairo-1.2.0.orig/setup.rb rcairo-1.2.0/setup.rb
--- rcairo-1.2.0.orig/setup.rb	2006-09-10 13:24:51.880828750 +0200
+++ rcairo-1.2.0/setup.rb	2006-09-10 13:26:21.978459500 +0200
@@ -537,7 +537,7 @@
 module FileOperations
 
   def mkdir_p(dirname, prefix = nil)
-    dirname = prefix + File.expand_path(dirname) if prefix
+    dirname = ENV["DESTDIR"] + prefix + File.expand_path(dirname) if prefix
     $stderr.puts "mkdir -p #{dirname}" if verbose?
     return if no_harm?
 
@@ -624,7 +624,8 @@
     $stderr.puts "install #{from} #{dest}" if verbose?
     return if no_harm?
 
-    realdest = prefix ? prefix + File.expand_path(dest) : dest
+	realdest = ENV["DESTDIR"]
+    realdest += prefix ? prefix + File.expand_path(dest) : dest
     realdest = File.join(realdest, File.basename(from)) if File.dir?(realdest)
     str = File.binread(from)
     if diff?(str, realdest)