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# Open source licenses
Lagrange is distributed under the BSD 2-clause license.
=> https://opensource.org/licenses/BSD-2-Clause The 2-Clause BSD License
=> https://git.skyjake.fi/skyjake/lagrange.git Lagrange Git Repository
> Copyright 2020 Jaakko Keränen
>
> 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 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 HOLDER 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.
## SDL
SDL 2.0 and newer are available under the zlib license:
=> https://www.zlib.net/zlib_license.html ZLIB License
> This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
>
> Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
>
> 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
>
> 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
>
> 3. This notice may not be removed or altered from any source distribution.
## mpg123
mpg123 is a fast console MPEG audio player and decoder library. It is licensed under LGPL 2.1. Lagrange uses the libmpg123 decoder library when playing back MPEG audio.
=> https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html GNU LGPL version 2.1
=> https://mpg123.org/ mpg123
## the_Foundation
the_Foundation is an opinionated C11 library by Jaakko Keränen. It is under the BSD 2-clause license. Note that the rest of the libraries in this section are used by the_Foundation, and not directly by Lagrange.
=> https://opensource.org/licenses/BSD-2-Clause The 2-Clause BSD License
=> https://git.skyjake.fi/skyjake/the_Foundation.git the_Foundation Git Repository
## OpenSSL
OpenSSL 1.1.1 is under a double license, which both apply to the library.
=> https://www.openssl.org/source/license-openssl-ssleay.txt OpenSSL and SSLeay Licenses
> Copyright (c) 1998-2019 The OpenSSL Project. 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. All advertising materials mentioning features or use of this software must display the following acknowledgment: "This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
>
> 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact openssl-core@openssl.org.
>
> 5. Products derived from this software may not be called "OpenSSL" nor may "OpenSSL" appear in their names without prior written permission of the OpenSSL Project.
>
> 6. Redistributions of any form whatsoever must retain the following acknowledgment: "This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)"
>
> THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY EXPRESSED 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 OpenSSL PROJECT OR ITS 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.
>
> This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com).
SSLeay license:
> Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
> All rights reserved.
>
> This package is an SSL implementation written by Eric Young (eay@cryptsoft.com). The implementation was written so as to conform with Netscapes SSL.
>
> This library is free for commercial and non-commercial use as long as the following conditions are aheared to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com).
>
> Copyright remains Eric Young's, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package.
>
> 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 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. All advertising materials mentioning features or use of this software must display the following acknowledgement: "This product includes cryptographic software written by Eric Young (eay@cryptsoft.com)" The word 'cryptographic' can be left out if the rouines from the library being used are not cryptographic related :-).
>
> 4. If you include any Windows specific code (or a derivative thereof) from the apps directory (application code) you must include an acknowledgement: "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
>
> THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 licence and distribution terms for any publically available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution licence [including the GNU Public Licence.]
## GNU libunistring
The libunistring library is covered by the GNU Lesser General Public License (LGPL):
=> https://www.gnu.org/software/libunistring/manual/libunistring.html#GNU-LGPL GNU LGPL
## Fonts
This application uses fonts licensed under the Open Font License.
=> https://github.com/mozilla/Fira/blob/master/LICENSE Fira Sans
=> https://typeof.net/Iosevka/ Iosevka
=> https://github.com/googlefonts/literata/blob/master/OFL.txt Literata
=> https://github.com/google/fonts/blob/master/ofl/nanumgothic/OFL.txt Nanum Gothic
=> https://www.google.com/get/noto/#sans-arab Noto Sans Arabic
=> https://www.google.com/get/noto/help/cjk/ Noto Sans CJK (JP, SC)
=> https://github.com/googlefonts/nunito/blob/master/OFL.txt Nunito
=> https://github.com/adobe-fonts/source-sans/blob/release/LICENSE.md Source Sans 3
Additional fonts:
=> https://github.com/googlefonts/noto-emoji/blob/master/LICENSE Noto Emoji (Apache License 2.0)
=> https://dn-works.com/ufas/ Symbola (Public Domain)
=> https://fonts.google.com/specimen/Tinos#license Tinos (Apache License 2.0)
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