COPYRIGHT: Update with recent additions, cleanup

Also include public domain assets in `COPYRIGHT.txt` with Unlicence text or
dual-licensing scheme.

And document commit hashes for most thirdparty code in `thirdparty/README.md`
for clarity, and in case there's no tag matching the included version numbers.

(cherry picked from commit c6802a65c6eba96ec033f46a4e9162abbe738d28)

COPYRIGHT.txt

@@ -56,18 +56,18 @@ Copyright: 2017, Andrea Calabró
 License: CC-BY-4.0
 
 Files: ./modules/fbx/fbx_parser/
-Comment: Open Asset Import Library (assimp)
-Copyright: 2006-2016, assimp team
+Comment: Open Asset Import Library (FBX parser)
+Copyright: 2006-2020, assimp team
  2007-2021, Juan Linietsky, Ariel Manzur.
  2014-2021, Godot Engine contributors.
-License: BSD-3-clause and Expat
-
-Files: ./platform/android/java/aidl/com/android/vending/billing/IInAppBillingService.aidl
- ./platform/android/java/res/layout/status_bar_ongoing_event_progress_bar.xml
- ./platform/android/java/src/com/google/android/vending/expansion/downloader/*
- ./platform/android/java/src/com/google/android/vending/licensing/*
- ./platform/android/java/src/org/godotengine/godot/input/InputManagerCompat.java
- ./platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
+License: BSD-3-clause
+
+Files: ./platform/android/java/lib/aidl/com/android/vending/licensing/
+ ./platform/android/java/lib/res/layout/status_bar_ongoing_event_progress_bar.xml
+ ./platform/android/java/lib/src/com/google/android/vending/expansion/downloader/
+ ./platform/android/java/lib/src/com/google/android/vending/licensing/
+ ./platform/android/java/lib/src/org/godotengine/godot/input/InputManagerCompat.java
+ ./platform/android/java/lib/src/org/godotengine/godot/input/InputManagerV16.java
 Comment: The Android Open Source Project
 Copyright: 2008-2013, The Android Open Source Project
 License: Apache-2.0
@@ -88,11 +88,6 @@ Copyright: 1997-2017, Sam Lantinga
  2014-2021, Godot Engine contributors.
 License: Expat and Zlib
 
-Files: ./scene/animation/tween_interpolaters.cpp
-Comment: Penner Easing
-Copyright: 2001, Robert Penner
-License: BSD-3-clause
-
 Files: ./servers/physics/gjk_epa.cpp
  ./servers/physics/joints/generic_6dof_joint_sw.cpp
  ./servers/physics/joints/generic_6dof_joint_sw.h
@@ -166,13 +161,14 @@ License: FTL
 
 Files: ./thirdparty/glad/
 Comment: glad
-Copyright: 2013-2019, David Herberth
+Copyright: 2013-2020, David Herberth
+ 2007-2020 The Khronos Group Inc.
 License: Expat
 
-Files: ./thirdparty/jpeg_compressor/
+Files: ./thirdparty/jpeg-compressor/
 Comment: jpeg-compressor
 Copyright: 2012, Rich Geldreich
-License: public-domain
+License: public-domain or Apache-2.0
 
 Files: ./thirdparty/libogg/
 Comment: OggVorbis
@@ -226,12 +222,17 @@ License: BSD-3-clause
 
 Files: ./thirdparty/mbedtls/
 Comment: Mbed TLS
-Copyright: 2006-2018, Arm Limited (or its affiliates)
+Copyright: The Mbed TLS Contributors
 License: Apache-2.0
 
+Files: ./thirdparty/minimp3/
+Comment: MiniMP3
+Copyright: lieff
+License: CC0-1.0
+
 Files: ./thirdparty/miniupnpc/
 Comment: MiniUPnPc
-Copyright: 2005-2018, Thomas Bernard
+Copyright: 2005-2019, Thomas Bernard
 License: BSD-3-clause
 
 Files: ./thirdparty/minizip/
@@ -276,6 +277,12 @@ Comment: Tangent Space Normal Maps implementation
 Copyright: 2011, Morten S. Mikkelsen
 License: Zlib
 
+Files: ./thirdparty/misc/open-simplex-noise.c
+ ./thirdparty/misc/open-simplex-noise.h
+Comment: OpenSimplex Noise
+Copyright: 2014, Stephen M. Cameron
+License: public-domain or Unlicense
+
 Files: ./thirdparty/misc/pcg.cpp
  ./thirdparty/misc/pcg.h
 Comment: Minimal PCG32 implementation
@@ -288,6 +295,11 @@ Comment: SMAZ
 Copyright: 2006-2009, Salvatore Sanfilippo
 License: BSD-3-clause
 
+Files: ./thirdparty/misc/stb_vorbis.c
+Comment: stb libraries
+Copyright: Sean Barrett
+License: public-domain or Unlicense or Expat
+
 Files: ./thirdparty/misc/triangulator.cpp
  ./thirdparty/misc/triangulator.h
 Comment: PolyPartition
@@ -347,7 +359,7 @@ License: BSD-3-clause
 
 Files: ./thirdparty/wslay/
 Comment: Wslay
-Copyright: 2011-2015, Tatsuhiro Tsujikawa
+Copyright: 2011, 2012, 2015, Tatsuhiro Tsujikawa
 License: Expat
 
 Files: ./thirdparty/xatlas/
@@ -499,6 +511,121 @@ License: BSL-1.0
  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.
 
+License: CC0-1.0
+ CC0 1.0 Universal
+ .
+ Statement of Purpose
+ .
+ The laws of most jurisdictions throughout the world automatically confer
+ exclusive Copyright and Related Rights (defined below) upon the creator and
+ subsequent owner(s) (each and all, an "owner") of an original work of
+ authorship and/or a database (each, a "Work").
+ .
+ Certain owners wish to permanently relinquish those rights to a Work for the
+ purpose of contributing to a commons of creative, cultural and scientific
+ works ("Commons") that the public can reliably and without fear of later
+ claims of infringement build upon, modify, incorporate in other works, reuse
+ and redistribute as freely as possible in any form whatsoever and for any
+ purposes, including without limitation commercial purposes. These owners may
+ contribute to the Commons to promote the ideal of a free culture and the
+ further production of creative, cultural and scientific works, or to gain
+ reputation or greater distribution for their Work in part through the use and
+ efforts of others.
+ .
+ For these and/or other purposes and motivations, and without any expectation
+ of additional consideration or compensation, the person associating CC0 with a
+ Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
+ and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
+ and publicly distribute the Work under its terms, with knowledge of his or her
+ Copyright and Related Rights in the Work and the meaning and intended legal
+ effect of CC0 on those rights.
+ .
+ 1. Copyright and Related Rights. A Work made available under CC0 may be
+ protected by copyright and related or neighboring rights ("Copyright and
+ Related Rights"). Copyright and Related Rights include, but are not limited
+ to, the following:
+ .
+ i. the right to reproduce, adapt, distribute, perform, display, communicate,
+ and translate a Work;
+ .
+ ii. moral rights retained by the original author(s) and/or performer(s);
+ .
+ iii. publicity and privacy rights pertaining to a person's image or likeness
+ depicted in a Work;
+ .
+ iv. rights protecting against unfair competition in regards to a Work,
+ subject to the limitations in paragraph 4(a), below;
+ .
+ v. rights protecting the extraction, dissemination, use and reuse of data in
+ a Work;
+ .
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+ European Parliament and of the Council of 11 March 1996 on the legal
+ protection of databases, and under any national implementation thereof,
+ including any amended or successor version of such directive); and
+ .
+ vii. other similar, equivalent or corresponding rights throughout the world
+ based on applicable law or treaty, and any national implementations thereof.
+ .
+ 2. Waiver. To the greatest extent permitted by, but not in contravention of,
+ applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
+ unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
+ and Related Rights and associated claims and causes of action, whether now
+ known or unknown (including existing as well as future claims and causes of
+ action), in the Work (i) in all territories worldwide, (ii) for the maximum
+ duration provided by applicable law or treaty (including future time
+ extensions), (iii) in any current or future medium and for any number of
+ copies, and (iv) for any purpose whatsoever, including without limitation
+ commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes
+ the Waiver for the benefit of each member of the public at large and to the
+ detriment of Affirmer's heirs and successors, fully intending that such Waiver
+ shall not be subject to revocation, rescission, cancellation, termination, or
+ any other legal or equitable action to disrupt the quiet enjoyment of the Work
+ by the public as contemplated by Affirmer's express Statement of Purpose.
+ .
+ 3. Public License Fallback. Should any part of the Waiver for any reason be
+ judged legally invalid or ineffective under applicable law, then the Waiver
+ shall be preserved to the maximum extent permitted taking into account
+ Affirmer's express Statement of Purpose. In addition, to the extent the Waiver
+ is so judged Affirmer hereby grants to each affected person a royalty-free,
+ non transferable, non sublicensable, non exclusive, irrevocable and
+ unconditional license to exercise Affirmer's Copyright and Related Rights in
+ the Work (i) in all territories worldwide, (ii) for the maximum duration
+ provided by applicable law or treaty (including future time extensions), (iii)
+ in any current or future medium and for any number of copies, and (iv) for any
+ purpose whatsoever, including without limitation commercial, advertising or
+ promotional purposes (the "License"). The License shall be deemed effective as
+ of the date CC0 was applied by Affirmer to the Work. Should any part of the
+ License for any reason be judged legally invalid or ineffective under
+ applicable law, such partial invalidity or ineffectiveness shall not
+ invalidate the remainder of the License, and in such case Affirmer hereby
+ affirms that he or she will not (i) exercise any of his or her remaining
+ Copyright and Related Rights in the Work or (ii) assert any associated claims
+ and causes of action with respect to the Work, in either case contrary to
+ Affirmer's express Statement of Purpose.
+ .
+ 4. Limitations and Disclaimers.
+ .
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+ surrendered, licensed or otherwise affected by this document.
+ .
+ b. Affirmer offers the Work as-is and makes no representations or warranties
+ of any kind concerning the Work, express, implied, statutory or otherwise,
+ including without limitation warranties of title, merchantability, fitness
+ for a particular purpose, non infringement, or the absence of latent or
+ other defects, accuracy, or the present or absence of errors, whether or not
+ discoverable, all to the greatest extent permissible under applicable law.
+ .
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+ that may apply to the Work or any use thereof, including without limitation
+ any person's Copyright and Related Rights in the Work. Further, Affirmer
+ disclaims responsibility for obtaining any necessary consents, permissions
+ or other rights required for any use of the Work.
+ .
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+ party to this document and has no duty or obligation with respect to this
+ CC0 or use of the Work.
+
 License: CC-BY-4.0
  Creative Commons Attribution 4.0 International Public License
  .
@@ -1452,6 +1579,32 @@ License: OFL-1.1
  DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE.
 
+License: Unlicense
+ This is free and unencumbered software released into the public domain.
+ .
+ Anyone is free to copy, modify, publish, use, compile, sell, or
+ distribute this software, either in source code form or as a compiled
+ binary, for any purpose, commercial or non-commercial, and by any
+ means.
+ .
+ In jurisdictions that recognize copyright laws, the author or authors
+ of this software dedicate any and all copyright interest in the
+ software to the public domain. We make this dedication for the benefit
+ of the public at large and to the detriment of our heirs and
+ successors. We intend this dedication to be an overt act of
+ relinquishment in perpetuity of all present and future rights to this
+ software under copyright law.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
+ .
+ For more information, please refer to <https://unlicense.org/>
+
 License: Zlib
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages

thirdparty/README.md

@@ -1,10 +1,14 @@
 # Third party libraries
 
+Please keep categories (`##` level) listed alphabetically and matching their
+respective folder names. Use two empty lines to separate categories for
+readability.
+
 
 ## bullet
 
 - Upstream: https://github.com/bulletphysics/bullet3
-- Version: 2.89 (2019)
+- Version: 2.89 (830f0a9565b1829a07e21e2f16be2aa9966bd28c, 2019)
 - License: zlib
 
 Files extracted from upstream source:
@@ -28,7 +32,7 @@ as it's generated on the user's system.)
 ## cvtt
 
 - Upstream: https://github.com/elasota/cvtt
-- Version: 1.0.0-beta4 (2018)
+- Version: 1.0.0-beta4 (cc8472a04ba110fe999c686d07af40f7839051fd, 2018)
 - License: MIT
 
 Files extracted from upstream source:
@@ -78,31 +82,26 @@ comments.
 
 ## fonts
 
-### Noto Sans
-
-- Upstream: https://github.com/googlei18n/noto-fonts
-- Version: 1.06 (2017)
-- License: OFL-1.1
-
-Use UI font variant if available, because it has tight vertical metrics and good for UI.
-
-### Hack Regular
-
-- Upstream: https://github.com/source-foundry/Hack
-- Version: 3.003 (2018)
-- License: MIT + Bitstream Vera License
-
-### DroidSans*.ttf
-
-- Upstream: https://android.googlesource.com/platform/frameworks/base/+/master/data/fonts/
-- Version: ? (pre-2014 commit when DroidSansJapanese.ttf was obsoleted)
-- License: Apache 2.0
+- `NotoSans*.ttf`, `NotoNaskhArabicUI_Regular.ttf`:
+  * Upstream: https://github.com/googlei18n/noto-fonts
+  * Version: 1.06 (2017)
+  * License: OFL-1.1
+  * Comment: Use UI font variant if available, because it has tight vertical metrics and
+    good for UI.
+- `Hack_Regular.ttf`:
+  * Upstream: https://github.com/source-foundry/Hack
+  * Version: 3.003 (2018)
+  * License: MIT + Bitstream Vera License
+- `DroidSans*.ttf`:
+  * Upstream: https://android.googlesource.com/platform/frameworks/base/+/master/data/fonts/
+  * Version: ? (pre-2014 commit when DroidSansJapanese.ttf was obsoleted)
+  * License: Apache 2.0
 
 
 ## freetype
 
 - Upstream: https://www.freetype.org
-- Version: 2.10.4 (2020)
+- Version: 2.10.4 (6a2b3e4007e794bfc6c91030d0ed987f925164a8, 2020)
 - License: FreeType License (BSD-like)
 
 Files extracted from upstream source:
@@ -115,7 +114,7 @@ Files extracted from upstream source:
 ## glad
 
 - Upstream: https://github.com/Dav1dde/glad
-- Version: 0.1.34 (2020)
+- Version: 0.1.34 (a5ca31c88a4cc5847ea012629aff3690f261c7c4, 2020)
 - License: MIT
 
 The files we package are automatically generated.
@@ -127,7 +126,7 @@ the GLES version Godot targets.
 
 - Upstream: https://github.com/richgel999/jpeg-compressor
 - Version: 2.00 (aeb7d3b463aa8228b87a28013c15ee50a7e6fcf3, 2020)
-- License: Public domain
+- License: Public domain or MIT
 
 Files extracted from upstream source:
 
@@ -150,7 +149,7 @@ Files extracted from upstream source:
 ## libpng
 
 - Upstream: http://libpng.org/pub/png/libpng.html
-- Version: 1.6.37 (2019)
+- Version: 1.6.37 (a40189cf881e9f0db80511c382292a5604c3c3d1, 2019)
 - License: libpng/zlib
 
 Files extracted from upstream source:
@@ -230,7 +229,7 @@ from the Android NDK r18.
 ## libwebp
 
 - Upstream: https://chromium.googlesource.com/webm/libwebp/
-- Version: 1.1.0 (2020)
+- Version: 1.1.0 (d7844e9762b61c9638c263657bd49e1690184832, 2020)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
@@ -246,7 +245,7 @@ changes are marked with `// -- GODOT --` comments.
 ## mbedtls
 
 - Upstream: https://tls.mbed.org/
-- Version: 2.16.9 (2020)
+- Version: 2.16.9 (3fac0bae4a50113989b3d015cd2d948f51a6d9ac, 2020)
 - License: Apache 2.0
 
 File extracted from upstream release tarball:
@@ -298,12 +297,14 @@ comments and a patch is provided in the minizip/ folder.
 
 Collection of single-file libraries used in Godot components.
 
-### core
-
 - `clipper.{cpp,hpp}`
   * Upstream: https://sourceforge.net/projects/polyclipping
   * Version: 6.4.2 (2017) + Godot changes (added optional exceptions handling)
   * License: BSL-1.0
+- `easing_equations.cpp`
+  * Upstream: http://robertpenner.com/easing/ via https://github.com/jesusgollonet/ofpennereasing (modified to fit Godot types)
+  * Version: git (af72c147c3a74e7e872aa28c7e2abfcced04fdce, 2008) + Godot types and style changes
+  * License: BSD-3-Clause
 - `fastlz.{c,h}`
   * Upstream: https://github.com/ariya/FastLZ
   * Version: 0.5.0 (4f20f54d46f5a6dd4fae4def134933369b7602d2, 2020)
@@ -312,53 +313,40 @@ Collection of single-file libraries used in Godot components.
   * Upstream: https://github.com/brunexgeek/hqx
   * Version: TBD, file structure differs
   * License: Apache 2.0
+- `ifaddrs-android.{cc,h}`
+  * Upstream: https://chromium.googlesource.com/external/webrtc/stable/talk/+/master/base/ifaddrs-android.h
+  * Version: git (5976650443d68ccfadf1dea24999ee459dd2819d, 2013)
+  * License: BSD-3-Clause
+- `mikktspace.{c,h}`
+  * Upstream: https://archive.blender.org/wiki/index.php/Dev:Shading/Tangent_Space_Normal_Maps/
+  * Version: 1.0 (2011)
+  * License: zlib
 - `open-simplex-noise.{c,h}`
   * Upstream: https://github.com/smcameron/open-simplex-noise-in-c
   * Version: git (826f1dd1724e6fb3ff45f58e48c0fbae864c3403, 2020) + custom changes
-  * License: Unlicense
+  * License: Public Domain or Unlicense
 - `pcg.{cpp,h}`
   * Upstream: http://www.pcg-random.org
   * Version: minimal C implementation, http://www.pcg-random.org/download.html
   * License: Apache 2.0
 - `smaz.{c,h}`
   * Upstream: https://github.com/antirez/smaz
-  * Version: git (150e125cbae2e8fd20dd332432776ce13395d4d4, 2009)
+  * Version: git (2f625846a775501fb69456567409a8b12f10ea25, 2012)
   * License: BSD-3-Clause
   * Modifications: use `const char*` instead of `char*` for input string
+- `stb_vorbis.c`
+  * Upstream: https://github.com/nothings/stb
+  * Version: 1.20 (314d0a6f9af5af27e585336eecea333e95c5a2d8, 2020)
+  * License: Public Domain or Unlicense or MIT
 - `triangulator.{cpp,h}`
   * Upstream: https://github.com/ivanfratric/polypartition (`src/polypartition.cpp`)
   * Version: TBD, class was renamed
   * License: MIT
-
-### modules
-
 - `yuv2rgb.h`
   * Upstream: http://wss.co.uk/pinknoise/yuv2rgb/ (to check)
   * Version: ?
   * License: BSD
 
-### platform
-
-- `ifaddrs-android.{cc,h}`
-  * Upstream: https://chromium.googlesource.com/external/webrtc/stable/talk/+/master/base/ifaddrs-android.h
-  * Version: git (5976650443d68ccfadf1dea24999ee459dd2819d, 2013)
-  * License: BSD-3-Clause
-
-### scene
-
-- `easing_equations.cpp`
-  * Upstream: http://robertpenner.com/easing/ via https://github.com/jesusgollonet/ofpennereasing (modified to fit Godot types)
-  * Version: git (af72c147c3a74e7e872aa28c7e2abfcced04fdce, 2008) + Godot types and style changes
-  * License: BSD-3-Clause
-- `mikktspace.{c,h}`
-  * Upstream: https://archive.blender.org/wiki/index.php/Dev:Shading/Tangent_Space_Normal_Maps/
-  * Version: 1.0 (2011)
-  * License: zlib
-- `stb_vorbis.c`
-  * Upstream: https://github.com/nothings/stb
-  * Version: 1.20
-  * License: Public Domain (Unlicense) or MIT
-
 
 ## nanosvg
 
@@ -392,7 +380,7 @@ Files extracted from upstream source:
 ## pcre2
 
 - Upstream: http://www.pcre.org
-- Version: 10.34 (2019)
+- Version: 10.34 (r1189, 2019)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
@@ -407,7 +395,8 @@ Files extracted from upstream source:
 
 ## pvrtccompressor
 
-- Upstream: https://bitbucket.org/jthlim/pvrtccompressor
+- Upstream: https://bitbucket.org/jthlim/pvrtccompressor (dead link)
+  Unofficial backup fork: https://github.com/LibreGamesArchive/PVRTCCompressor
 - Version: hg (cf7177748ee0dcdccfe89716dc11a47d2dc81af5, 2015)
 - License: BSD-3-Clause
 
@@ -432,7 +421,7 @@ Files extracted from upstream source:
 ## squish
 
 - Upstream: https://sourceforge.net/projects/libsquish
-- Version: 1.15 (2017)
+- Version: 1.15 (r104, 2017)
 - License: MIT
 
 Files extracted from upstream source:
@@ -475,7 +464,7 @@ folder.
 ## wslay
 
 - Upstream: https://github.com/tatsuhiro-t/wslay
-- Version: 1.1.1 (2020)
+- Version: 1.1.1 (c9a84aa6df8512584c77c8cd15be9536b89c35aa, 2020)
 - License: MIT
 
 File extracted from upstream release tarball:
@@ -511,7 +500,7 @@ Files extracted from upstream source:
 ## zstd
 
 - Upstream: https://github.com/facebook/zstd
-- Version: 1.4.8 (2020)
+- Version: 1.4.8 (97a3da1df009d4dc67251de0c4b1c9d7fe286fc1, 2020)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:

thirdparty/glad/LICENSE

@@ -1,20 +1,63 @@
-The MIT License (MIT)
-
-Copyright (c) 2013-2018 David Herberth
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+The glad source code:
+
+    The MIT License (MIT)
+
+    Copyright (c) 2013-2020 David Herberth
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+    the Software, and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+The Khronos Specifications:
+
+    Copyright (c) 2013-2020 The Khronos Group Inc.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+
+The EGL Specification and various headers:
+
+    Copyright (c) 2007-2016 The Khronos Group Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and/or associated documentation files (the
+    "Materials"), to deal in the Materials without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Materials, and to
+    permit persons to whom the Materials are furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Materials.
+
+    THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+    MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.