sed does not support +

Zhonghua Zhu <[email protected]>
Newsgroups gmane.comp.gnu.utils.bugs
Message-ID <CAMkxeriepRhZ740v4L0up4bfwFOuZ_hR3OYcuCuvAMHKg1D0kA@mail.gmail.com>
I downloaded sed src from http://directory.fsf.org/wiki/Sed.

Under MingW, I compiled the src.

GCC 4.7

I heard some say original sed does not support +, GNU sed does.

http://www.grymoire.com/Unix/Sed.html

But it does not.

So is there anything wrong with me ? or is it a bug?
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