url.lfs:https://linuxfromscratch.org/lfs/view/10.0/chapter08/ninja.html

url_lfs-10.0:https://linuxfromscratch.org/lfs/view/10.0/chapter08/ninja.html
url_lfs-9.1:https://linuxfromscratch.org/lfs/view/9.1/chapter06/ninja.html