diff -ruN ruby-1.8.4.orig/configure.in ruby-1.8.4/configure.in
--- ruby-1.8.4.orig/configure.in	2006-04-20 12:53:38.000000000 +0900
+++ ruby-1.8.4/configure.in	2006-04-20 13:06:07.000000000 +0900
@@ -1472,12 +1472,16 @@
 esac
 RUBY_SITE_LIB_PATH3="${RUBY_SITE_LIB_PATH2}/${MAJOR}.${MINOR}"
 RUBY_SITE_LIB_PATH2="${RUBY_SITE_LIB_PATH}/${MAJOR}.${MINOR}"
+RUBY_DEPRECATED_SITE_LIB_PATH="${SITE_DIR2}/${MAJOR}.${MINOR}"
 
 AC_DEFINE_UNQUOTED(RUBY_LIB, "${RUBY_LIB_PATH}")
 AC_DEFINE_UNQUOTED(RUBY_SITE_LIB, "${RUBY_SITE_LIB_PATH}")
 AC_DEFINE_UNQUOTED(RUBY_SITE_LIB2, "${RUBY_SITE_LIB_PATH2}")
 AC_DEFINE_UNQUOTED(RUBY_DEPRECATED_OLD_SITE_LIB, "${libdir}/site_ruby")
 AC_DEFINE_UNQUOTED(RUBY_DEPRECATED_OLD_SITE_LIB2, "${libdir}/site_ruby/${MAJOR}.${MINOR}")
+AC_DEFINE_UNQUOTED(RUBY_DEPRECATED_LIB, "${RUBY_LIB_PATH2}")
+AC_DEFINE_UNQUOTED(RUBY_DEPRECATED_SITE_LIB, "${SITE_DIR2}")
+AC_DEFINE_UNQUOTED(RUBY_DEPRECATED_SITE_LIB2, "${RUBY_DEPRECATED_SITE_LIB_PATH}")
 
 AC_SUBST(arch)dnl
 AC_SUBST(sitearch)dnl
diff -ruN ruby-1.8.4.orig/ruby.c ruby-1.8.4/ruby.c
--- ruby-1.8.4.orig/ruby.c	2005-12-12 09:36:52.000000000 +0900
+++ ruby-1.8.4/ruby.c	2006-04-20 12:59:50.000000000 +0900
@@ -292,11 +292,17 @@
 #endif
 
     incpush(RUBY_RELATIVE(RUBY_SITE_LIB2));
+#ifdef RUBY_DEPRECATED_SITE_LIB
+    incpush(RUBY_RELATIVE(RUBY_DEPRECATED_SITE_LIB2));
+#endif
 #ifdef RUBY_SITE_THIN_ARCHLIB
     incpush(RUBY_RELATIVE(RUBY_SITE_THIN_ARCHLIB));
 #endif
     incpush(RUBY_RELATIVE(RUBY_SITE_ARCHLIB));
     incpush(RUBY_RELATIVE(RUBY_SITE_LIB));
+#ifdef RUBY_DEPRECATED_SITE_LIB
+    incpush(RUBY_RELATIVE(RUBY_DEPRECATED_SITE_LIB));
+#endif
 #ifdef RUBY_DEPRECATED_OLD_SITE_LIB2
     incpush(RUBY_RELATIVE(RUBY_DEPRECATED_OLD_SITE_LIB2));
 #endif
@@ -308,6 +314,9 @@
 #endif
 
     incpush(RUBY_RELATIVE(RUBY_LIB));
+#ifdef RUBY_DEPRECATED_LIB
+    incpush(RUBY_RELATIVE(RUBY_DEPRECATED_LIB));
+#endif
 #ifdef RUBY_THIN_ARCHLIB
     incpush(RUBY_RELATIVE(RUBY_THIN_ARCHLIB));
 #endif