I'm very disappointed about opencv 3.
Unable to compile it on Windows using MinGW and contrib modules. Unable to link it on Mac OSX. It's working only on Linux. A year ago more less I have uploaded a little patch for Linux (many hours to use github) and no one have replied to me.
What do you want exactly ?
This is not a question. If you submitted a pull request and your build passed all checks, it will have been merged. At least give links to draw attention to your contribution.
I am sorry but please improve the question or we will have to delete it.