$ man make
-B, --always-make
Unconditionally make all targets.
-W file, --what-if=file, --new-file=file, --assume-new=file
Pretend that the target file has just been modified. When used
with the -n flag, this shows you what would happen if you were to
modify that file. Without -n, it is almost the same as running a
touch command on the given file before running make, except that
the modification time is changed only in the imagination of make.
OK, -W mentions -n, but -B doesn't.
That makes it seem like -B means Business, so no wimpy -n will affect
it. So please mention -n there too.
Also mention on -B and -W that they are like opposites.
(No I didn't try mixing them.)
No I didn't look at the info page today. I'm just talking about the man page.