From: utzoo!decvax!cca!dan@BBN-UNIX@sri-unix
Newsgroups: net.unix-wizards
Title: Re: m4 io asap
Article-I.D.: sri-unix.2394
Posted: Sun Aug  1 20:25:10 1982
Received: Mon Aug  2 04:15:54 1982

From: Dan Franklin 
Date:  2 Jul 1982 16:52:15 EDT (Friday)
The syntax error was because our m4 has no semicolon in the putbak macro;
sorry about that.

The problem with always doing output asap is that it is incredibly inefficient.
If anyone uses such a modified m4 for preprocessing their huge Fortran program,
it will bring the system to its knees. At least, such has been our experience
with the old m6 program on our 11/70.