From The Free On-line Dictionary of Computing (30 December 2018) :
Harvest C
A C compiler, assembler and linker for the Macintosh by
Eric W. Sink. The parts of the system are integrated in a
single application, which manages a "project" composed by
several C source files and resource files (which contain
data). Version 1.3.
ftp://archive.umich.edu/mac/development/languages/)">(ftp://archive.umich.edu/mac/development/languages/).
(1992-05-26)