If we don't filter out SYSTEM from the arguments we pass through to ExternalProject_Add(), it gets appended as a list item to whatever arguments precede it because ExternalProject_Add() doesn't recognize it as a keyword.
Backport: release
If we don't filter out SYSTEM from the arguments we pass through to ExternalProject_Add(), it gets appended as a list item to whatever arguments precede it because ExternalProject_Add() doesn't recognize it as a keyword.
Backport: release