Zlib

 1Valid-License-Identifier: Zlib
 2SPDX-URL: https://spdx.org/licenses/Zlib.html
 3Usage-Guide:
 4  To use the Zlib License put the following SPDX tag/value pair into a
 5  comment according to the placement guidelines in the licensing rules
 6  documentation:
 7    SPDX-License-Identifier: Zlib
 8License-Text:
 9
10zlib License
11
12Copyright (c) <year> <copyright holders>
13
14This software is provided 'as-is', without any express or implied warranty. In
15no event will the authors be held liable for any damages arising from the use
16of this software.
17
18Permission is granted to anyone to use this software for any purpose, including
19commercial applications, and to alter it and redistribute it freely, subject
20to the following restrictions:
21  1. The origin of this software must not be misrepresented; you must not
22claim that you wrote the original software. If you use this software in a
23product, an acknowledgment in the product documentation would be appreciated
24but is not required.
25  2. Altered source versions must be plainly marked as such, and must not be
26misrepresented as being the original software.
27  3. This notice may not be removed or altered from any source distribution.