vpath.rb: separator for make

* tool/vpath.rb (VPath#list): default separator to PATH_SEPARATOR from
  configure.in for make, not same name constant of File for use in ruby.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38839 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Jan 15 23:12:34 2013  Nobuyoshi Nakada  <[email protected]>
+
+	* tool/vpath.rb (VPath#list): default separator to PATH_SEPARATOR from
+	  configure.in for make, not same name constant of File for use in ruby.
+
 Tue Jan 15 22:30:04 2013  Keiju Ishitsuka  <[email protected]>
 
 	* lib/irb/ext/save-history.rb: identify rightly a status of a

tool/vpath.rb

@@ -6,7 +6,7 @@ class VPath
   def initialize(*list)
     @list = list
     @additional = []
-    @separator = File::PATH_SEPARATOR
+    @separator = nil
   end
 
   def inspect
@@ -65,6 +65,7 @@ def def_options(opt)
   end
 
   def list
+    @separator ||= (require 'rbconfig'; RbConfig::CONFIG["PATH_SEPARATOR"])
     @additional.reject! do |dirs|
       case dirs
       when String