Ref: https://mail.xfce.org/pipermail/xfce4-dev/2017-December/032085.html

Note: https://archive.xfce.org/ might still redirect to http:// mirrors
      but that should be fixed in the near future to redirect to https://

Attempt to fix FS#25873: segfaults trying to capture screenshot of active window in awesome WM

rebuild for Xfce 4.8pre3 release candidate - add a segfault fix preventing it to start