cleaner lookup "Signal" of constant

Instead of blindly defining a module, this is more flexible in
case Signal in Ruby itself becomes something other than a
module.

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/posix_mq/posix_mq.c b/ext/posix_mq/posix_mq.c
index d9abf1e..4c9d2ea 100644
--- a/ext/posix_mq/posix_mq.c
+++ b/ext/posix_mq/posix_mq.c
@@ -702,7 +702,7 @@ static int lookup_sig(VALUE sig)
                 sig = rb_str_new(ptr + 3, len - 3);
 
         if (!list) {
-                VALUE mSignal = rb_define_module("Signal"""); /* avoid RDoc */
+                VALUE mSignal = rb_const_get(rb_cObject, rb_intern("Signal"));
 
                 list = rb_funcall(mSignal, rb_intern("list"), 0, 0);
                 rb_global_variable(&list);