* include/ruby/intern.h (rb_hash_dup): declared.

* hash.c (rb_hash_dup): new function.

* process.c (rb_spawn_internal): don't modify option hash.



git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@16210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index e68f1070e..36cc5d14a 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -500,6 +500,21 @@ class TestProcess < Test::Unit::TestCase
     }
   end
 
+  def test_execopts_modification
+    h = {}
+    Process.wait spawn(EnvUtil.rubybin, '-e', '', h)
+    assert_equal({}, h)
+
+    h = {}
+    system(EnvUtil.rubybin, '-e', '', h)
+    assert_equal({}, h)
+
+    h = {}
+    io = IO.popen([EnvUtil.rubybin, '-e', '', h])
+    io.close
+    assert_equal({}, h)
+  end
+
   def test_system
     str = "echo fofo"
     assert_nil(system([str, str]))