unifdef copyright licence
-------------------------

All files in this package are distributed under the two-clause BSD
copyright licence, except for the manual page unifdef.1 and the
portability support code in the FreeBSD subdirectory, which all have
a three-clause BSD copyright licence.

Unifdef was derived from software contributed to Berkeley by Dave
Yost. It was rewritten to support ANSI C by Tony Finch. The original
version of unifdef.c carried the four-clause BSD copyright licence.
None of its code remains in this version (though some of the names
remain) so it now carries the more liberal two-clause licence.

Unless otherwise stated, the files in this package are:

  Copyright (c) 2002 - 2020 Tony Finch <dot@dotat.at>

unifdefall.sh is:

  Copyright (c) 2002 - 2013 Tony Finch <dot@dotat.at>
  Copyright (c) 2009 - 2010 Jonathan Nieder <jrnieder@gmail.com>

Some files in the tests directory are:

  Copyright 2004, 2008 Bob Proulx <bob@proulx.com>

The two-clause BSD copyright licence applying to all the above files is:

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  SUCH DAMAGE.

The three-clause BSD copyright licence for the manual page unifdef.1
and the portability support code from FreeBSD is below. The fourth
advertising clause that used to appear between clauses 2 and 3 was
rescinded by the University of California Berkeley in 1999.
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

  Copyright (c) 1985 - 1994
	The Regents of the University of California.  All rights reserved.
  Copyright (c) 2002 - 2012 Tony Finch <dot@dotat.at>.  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
  3. Neither the name of the University nor the names of its contributors
     may be used to endorse or promote products derived from this software
     without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  SUCH DAMAGE.

- end -