README.FIRST

	See README for the original README.

	This is a copy of Wietse Venema's unproto program, which allows
	you to compile ANSI C programs using pre-ANSI C compilers.

	This version is based on unproto 1.6 from 1993. It contains
	modifications and additions by Udo Munk and Nils M Holm.

	Udo provided a compiler driver script for the Coherent
	operating system.

	I (Nils) have made the following modifications:

	(1) Line number control directives other than "#" can be
	    generated (Makefile variable LINE).

	(2) Line number directives with leading blanks are accepted.
	    This modification allows to compile programs containing
	    indented #include directives, which make some preprocessors
	    emit line control directives with leading blanks.

	(3) Changed some code that caused warning messages on modern
	    compilers, but without breaking K&R C compatibility. This
	    means that there are still a lot of warnings left.
	    *** DO NOT FIX THOSE! ***
	    The purpose of unproto is to compile on ancient platforms!
	    Fixing these warnings will most probably break
	    compatibility with those platforms!