Install logger.rb to RUBYLIBDIR, not site_dir under 1.8.

Author: nahi

install.rb

@@ -5,6 +5,7 @@
 include Config
 
 RV = CONFIG["MAJOR"] + "." + CONFIG["MINOR"]
+RUBYLIBDIR = CONFIG["rubylibdir"]
 DSTPATH = CONFIG["sitedir"] + "/" +  RV 
 
 def join(*arg)
@@ -16,14 +17,17 @@ def base(name)
 end
 
 begin
-  File.mkpath(join(DSTPATH, "devel"), true)
-  Dir['lib/devel/*.rb'].each do |name|
-    File.install(name, join(DSTPATH, 'devel', base(name)), 0644, true)
-  end
-  Dir['lib/*.rb'].each do |name|
+  name = join('lib', 'logger.rb')
+  if RUBY_VERSION >= '1.8.0'
+    File.install(name, join(RUBYLIBDIR, base(name)), 0644, true)
+  else
     File.install(name, join(DSTPATH, base(name)), 0644, true)
   end
 
+  name = join('lib', 'devel', 'logger.rb')
+  File.mkpath(join(DSTPATH, "devel"), true)
+  File.install(name, join(DSTPATH, 'devel', base(name)), 0644, true)
+
   puts "install succeed!"
 
 rescue