* ruby.c (set_arg0, ruby_prog_init): freeze $0. a patch from Keita

  Yamaguchi <keita.yamaguchi at gmail.com>.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@17586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/ruby.c b/ruby.c
index 027b15f05..26ed3f491 100644
--- a/ruby.c
+++ b/ruby.c
@@ -1397,14 +1397,14 @@ set_arg0(VALUE val, ID id)
 	}
     }
 #endif
-    rb_progname = rb_tainted_str_new(s, i);
+    rb_progname = rb_obj_freeze(rb_tainted_str_new(s, i));
 }
 
 void
 ruby_script(const char *name)
 {
     if (name) {
-	rb_progname = rb_tainted_str_new2(name);
+	rb_progname = rb_obj_freeze(rb_tainted_str_new2(name));
     }
 }