itmux, tmux, Cygwin Licenses


****** itmux License ******

Copyright (c) 2026, itefix.net
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, thislist 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER OR 
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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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.


****** tmux License ******

THIS IS FOR INFORMATION ONLY, CODE IS UNDER THE LICENCE AT THE TOP OF ITS FILE.

The README, CHANGES, FAQ and TODO files are licensed under the ISC license. All
other files have a license and copyright notice at their start, typically:

Copyright (c) <author>

Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

****** CYGWIN License ******

What are the licensing terms?

Most of the tools are covered by the GNU GPL, some are public domain, 
and others have a X11 style copyright. To cover the GNU GPL requirements, 
the basic rule is if you give out any binaries, you must also make the 
source available. For the full details, be sure to read the text of the
GNU General Public License (GPL). 

The Cygwin API library found in the winsup subdirectory of the source code
is also covered by the GNU GPL (with exceptions; see below). By default, 
all executables link against this library (and in the process include 
GPL'd Cygwin glue code). This means that unless you modify the tools 
so that compiled executables do not make use of the Cygwin library, your
compiled programs will also have to be free software distributed under
the GPL with source code available to all. 

Cygwin API Licensing Terms

This is a copy of CYGWIN_LICENSE from the cygwin sources 

--------------------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (GPL) as published by the Free 
Software Foundation; either version 2 of the License, or (at your option) any
later version.
 
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details. 

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple 
Place - Suite 330, Boston, MA 02111-1307, USA. 
--------------------------------------------------------------------------------

*** NOTE ***

In accordance with section 10 of the GPL, Red Hat permits programs whose sources
are distributed under a license that complies with the Open Source definition to
be linked with libcygwin.a without libcygwin.a itself causing the resulting
program to be covered by the GNU GPL. 

This means that you can port an Open Source(tm) application to cygwin, and
distribute that executable as if it didn't include a copy of libcygwin.a linked
into it. Note that this does not apply to the cygwin DLL itself. If you
distribute a (possibly modified) version of the DLL you must adhere to the
terms of the GPL, i.e. you must provide sources for the cygwin DLL. 

See http://www.opensource.org/docs/definition_plain.html for the precise Open
Source Definition referenced above. 

Red Hat sells a special Cygwin License for customers who are unable to provide
their application in open source code form. For more information, please see: 
http://www.redhat.com/software/tools/cygwin/, or call 866-2REDHAT ext. 3007

