About the OpenCV extra modules

Hi all, I want to use the extra modules of OpenCV on Xavier. But it seems the extra modules are not included in the default installations of the OpenCV 3.3.1 on Jetpack 4.1. So Need I do the cross-compilation using the OpenCV3.3.1 source in order to use the OpenCV extra module? Is it doable and does anyone successfully install it?
Thank you so much!!

you deselect opencv while installing OS from Jetpack,
then you build opencv 3.4 or 4.0 manually.
Further reference:

Dear Andrey1984, thank you for the information!!