Early Unix had a lot of cryptic messages -- the infamous "eh?", and "very
funny!" were two that I got several times. The make love message in the
earliest make I remember was "Don't know how to make love."
When working on PCC, I had the unenviable job of producing a C compiler
that would accept all of *077532 = 13, 077532->ack = 13, and device->ack
= 13. As we were trying to get the kernel and applications to declare
addresses more "honestly", we adopted a rule that if you actually used a
structure reference that was type safe, we would require it everywhere in
the file. Since structure members used to be in a single namespace, this
led to some horribly complicated code. In an effort to get it to work, I
festooned it with consistency checks nearly every other line, getting more
and more punchy as I tried to come up with short, unique messages.
I'll never forget the look on Ken's face when he came to me and asked
"what is a 'gummy structure'?"
Nowadays, while I'm happy to have some fun with them, I think throwing
humor at people who have just screwed up is playing to a tough audience.
Today, I might have suggested that 'make love' produce something more like
"Don't know how to make love. Can you introduce me to a hot makefile?"