* string.c (str_new4): should not preserve FL_TAINT status in the

internal shared string. [ruby-dev:21601]

* string.c (rb_str_new4): ditto.

* eval.c: use EXIT_SUCCESS and EXIT_FAILURE for exit values.

* process.c: ditto. [ruby-dev:38521]

* lib/debug.rb (debug_command): should enter emacs mode when
  assigned any value to the environment variable "EMACS".
  On Meadow, (getenv "EMACS") is "meadow".


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4749 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/envutil.rb

@@ -1,10 +1,13 @@
 module EnvUtil
   def rubybin
-    if File.exist? "miniruby" or File.exist? "miniruby.exe"
-      "./miniruby"
-    else
-      "ruby"
+    miniruby = "miniruby"
+    3.times do
+      if File.exist? miniruby or File.exist? miniruby+".exe"
+        return File.expand_path(miniruby)
+      end
+      miniruby = "../"+miniruby
     end
+    "ruby"
   end
   module_function :rubybin
 end