At work, we started using dmake in 1991 (or even earlier) for building the firmware for the Vending Machine Controller Euro'90. The firmware consisted mostly of PL/M and C code and the compilers suffered from the DOS limitation of 127 characters per command line. Dennis Vadura’s dmake 3.70 (hosted by the University of Waterloo and available as DOS version) featured the $(mktmp ) macro that let me create any needed temporary config and response files.
