merges r23661 from trunk into ruby_1_9_1.

--
	* dir.c (dir_s_getwd): directory path's encoding should be filesystem's
	  one.

	* lib/tmpdir.rb: ditto (but not finished yet.)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@23781 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Wed Jun 10 18:15:17 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* dir.c (dir_s_getwd): directory path's encoding should be filesystem's
+	  one.
+
+	* lib/tmpdir.rb: ditto (but not finished yet.)
+
 Tue Jun  9 22:38:09 2009  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* lib/cmath.rb (log10): raised exception when the given number is

dir.c

@@ -802,6 +802,7 @@ dir_s_getwd(VALUE dir)
     rb_secure(4);
     path = my_getcwd();
     cwd = rb_tainted_str_new2(path);
+    rb_enc_associate(cwd, rb_filesystem_encoding());
 
     xfree(path);
     return cwd;

lib/tmpdir.rb

@@ -28,6 +28,7 @@ class Dir
       len = getdir.call(windir, windir.size)
       windir = File.expand_path(windir[0, len])
     end
+    windir.force_encoding(Dir.pwd.encoding)
     temp = File.join(windir.untaint, 'temp')
     @@systmpdir = temp if File.directory?(temp) and File.writable?(temp)
   rescue LoadError

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "1.9.1"
 #define RUBY_RELEASE_DATE "2009-05-22"
-#define RUBY_PATCHLEVEL 171
+#define RUBY_PATCHLEVEL 172
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1