no way to specify a target with a "=" in its name on the command line

[jidanni]

You make(1) fellows may be really smart, but you forgot to give the user
a way to specify a target with a "=" in its name on the command line.

Nope, even in
$ make -- dummy ./j=k qqqq

The ./j=k is interpreted as a variable setting. Backslashes are no help either.

P.S., I hope it is documented that
a b c=d:;echo $@
set the variable "a b c" to "d:;echo $@".

GNU Make 3.81
Copyright (C) 2006
That's the latest in Debian "sid".