Opencv 3.4.3 +contrib not configured correctly

[jtressle]

I'm able to compile Opencv 3.4.3 correctly with +contrib. However, the +contrib portion doesn't work.

Both SIFT and SURF work in 3.4.1. However, they do not work in 3.4.3. You can test by running the following code:

cv::Ptr<cv::xfeatures2d::SIFT> sift = cv::xfeatures2d::SIFT::create();

The last working version of Opencv is in commit 01d8762.

Thanks