#ident	"@(#)vi/port:READ_ME	1.1"
This is version 4 (5.3a) of the editor.

[Note the new version numbering scheme.  System V Release 3 is
shown as "Version 5.3x" where the character "x" is a letter from
a to z, updated upon each delivery.  In this way, customers can
report which version of ex/vi is being run on their machine.
This variable is set in ex.c --- see related comments.]

Version 2 corresponds to version 3 without the enhancements in 3.
There is no reason to use 2 unless you have a pdp-11 that does not have
overlay software, since 3 contains all the bug fixes and some new features.

The include file local/uparm.h should be installed, as ex_tune.h needs it.
The contents of this include file can be modified if you wish to place
the editor in a nonstandard location.

Conditional compilation flags:

	-DTRACE		for debugging (the original command line syntax
			 was "[-T [suffix]]"; this has been changed to be:
			 "[-T] [-S suffix]" in order to standardize
			 command line syntax.  For the moment, BOTH
			 forms are acceptable; in the future, the original
			 form will be dropped to eliminate the optional
			 argument to the option T.
	-DVFORK		for UCB Vax/Unix with the vfork system call.
	-DCHDIR		compile in undocumented chdir (cd) command
	-DLISP		compile in lisp hacks
	-DUCVISUAL	compile in code to handle \ escapes for visual on
			 upper case only terminals.
	-DCRYPT		-x option to edit encrypted files
