--- ruby-netcdf.orig/extconf.rb
+++ ruby-netcdf/extconf.rb
@@ -1,7 +1,7 @@
 require "mkmf"
 
-dir_config('narray',$sitearchdir,$sitearchdir)
-dir_config('netcdf','/usr/local')
+dir_config('narray',$archdir,$archdir)
+dir_config('netcdf','/usr')
 
 if ( ! ( have_header("narray.h") && have_header("narray_config.h") ) ) then
 print <<EOS
