diff -ur ruby-dbi-orig/setup.rb ruby-dbi/setup.rb
--- ruby-dbi-orig/setup.rb	2006-10-02 11:23:00.000000000 +0100
+++ ruby-dbi/setup.rb	2006-10-04 23:22:22.000000000 +0100
@@ -269,14 +269,14 @@
 						isdir( File.join( @config['rb-dir'], 'DBD', capname ) )
 						install(
 							basefile,
-							File.join( @config['rb-dir'], 'DBD', capname, basefile ),
+							File.join( ENV['DESTDIR'], @config['rb-dir'], 'DBD', capname, basefile ),
 							0644
 						)
 					end
 				end
 			}
 			into_dir( 'dbi' ) { install_rb 'dbi' }
-			install( 'dbi.rb', @config['rb-dir'], 0644 )
+			install( 'dbi.rb', File.join( ENV['DESTDIR'], @config['rb-dir']), 0644 )
     }
     into_dir( 'ext' ) {
       foreach_package do |targ, *dummy|
Only in ruby-dbi: .setup.rb.swp