Include latest 7zip version v18.05 #30035
Seems ok, except I notice http used. Why not https ? This link redirects to such, but not all; and even though it does, it seems like a candidate for-man-in-the-middle attack.
There seems to be no preference to NOT use https:// as I see such a link in the makefile.
I checked, and all of the http links work as https too (at least currently); except for the one in a comment that doesn't work either way...