ext/extmk.rb: reopen stdout

* ext/extmk.rb (extmake): reopen $stdout to NULL, since setting
  $stdout cannot affect child processes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35727 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 12 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index bda7ddfd7f..3bb0ada8ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun May 20 23:00:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (extmake): reopen $stdout to NULL, since setting
+	  $stdout cannot affect child processes.
+
 Sun May 20 21:36:39 2012  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* enc/shift_jis.c (code_to_mbclen): return
diff --git a/ext/extmk.rb b/ext/extmk.rb
index e37ea6613d..9293ecaf87 100755
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -187,15 +187,18 @@ def extmake(target)
 	  Logging::logfile 'mkmf.log'
 	  rm_f makefile
 	  if conf
+            stdout = $stdout.dup
+            stderr = $stderr.dup
             unless verbose?
-              stdout, $stdout = $stdout, File.open(File::NULL, "a")
-            else
-              stdout = $stdout
+              $stderr.reopen($stdout.reopen(File::NULL))
             end
             begin
               load $0 = conf
             ensure
-              $stdout = stdout
+              $stderr.reopen(stderr)
+              $stdout.reopen(stdout)
+              stdout.close
+              stderr.close
             end
 	  else
 	    create_makefile(target)