* lib/mkmf.rb: keep curdir unexpanded.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8752 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Tue Jul 12 23:32:11 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb: keep curdir unexpanded.
+
 Mon Jul 11 23:50:17 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval.c, intern.h (rb_proc_call, rb_obj_method, rb_method_call):

lib/mkmf.rb

@@ -1242,8 +1242,11 @@ end
 Config::CONFIG["srcdir"] = CONFIG["srcdir"] =
   $srcdir = arg_config("--srcdir", File.dirname($0))
 $configure_args["--topsrcdir"] ||= $srcdir
-$curdir = arg_config("--curdir", Dir.pwd)
-Config.expand(curdir = $curdir.dup)
+if $curdir = arg_config("--curdir")
+  Config.expand(curdir = $curdir.dup)
+else
+  curdir = $curdir = "."
+end
 unless File.expand_path(Config::CONFIG["topdir"]) == File.expand_path(curdir)
   CONFIG["topdir"] = $curdir
   Config::CONFIG["topdir"] = curdir