diff --git a/ChangeLog b/ChangeLog
index 7b5648259c..0fbca60a39 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Tue Mar 30 18:25:52 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_file_dirname): split from rb_file_s_dirname.
+
+	* load.c (rb_f_require_relative): use absolute path instead of
+	  expanded path.
+
 Tue Mar 30 13:57:08 2010  Akinori MUSHA  <knu@iDaemons.org>
 
 	* process.c (proc_daemon): Process.daemon should raise an error on
diff --git a/file.c b/file.c
index 557085e1aa..af2730a12f 100644
--- a/file.c
+++ b/file.c
@@ -3428,8 +3428,14 @@ rb_file_s_basename(int argc, VALUE *argv)
  *     File.dirname("/home/gumby/work/ruby.rb")   #=> "/home/gumby/work"
  */
 
-VALUE
+static VALUE
 rb_file_s_dirname(VALUE klass, VALUE fname)
+{
+    return rb_file_dirname(fname);
+}
+
+VALUE
+rb_file_dirname(VALUE fname)
 {
     const char *name, *root, *p;
     VALUE dirname;
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index 1ae13ee73b..c53728eec8 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -355,6 +355,7 @@ VALUE rb_file_s_expand_path(int, VALUE *);
 VALUE rb_file_expand_path(VALUE, VALUE);
 VALUE rb_file_s_absolute_path(int, VALUE *);
 VALUE rb_file_absolute_path(VALUE, VALUE);
+VALUE rb_file_dirname(VALUE fname);
 void rb_file_const(const char*, VALUE);
 int rb_file_load_ok(const char *);
 int rb_find_file_ext_safe(VALUE*, const char* const*, int);
diff --git a/load.c b/load.c
index 2c391a1b86..8742d28b2e 100644
--- a/load.c
+++ b/load.c
@@ -452,13 +452,12 @@ VALUE
 rb_f_require_relative(VALUE obj, VALUE fname)
 {
     VALUE rb_current_realfilepath(void);
-    VALUE rb_file_s_dirname(VALUE klass, VALUE fname);
     VALUE base = rb_current_realfilepath();
     if (NIL_P(base)) {
 	rb_raise(rb_eLoadError, "cannot infer basepath");
     }
-    base = rb_file_s_dirname(rb_cFile, base);
-    return rb_require_safe(rb_file_expand_path(fname, base), rb_safe_level());
+    base = rb_file_dirname(base);
+    return rb_require_safe(rb_file_absolute_path(fname, base), rb_safe_level());
 }
 
 static int