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This file contains licensing information for `Video Downloader` and libraries distributed with it:
* `Breeze icons (from KDE)`
* `FreeType`
* `GCC`
* `GLib`
* `Graphite`
* `HarfBuzz`
* `MinGW-w64`
* `Numix icon theme`
* `OpenSSL`
* `PCRE`
* `PCRE2`
* `Qt 5`
* `bzip2`
* `c++utilities`
* `gettext`
* `libffi`
* `libiconv`
* `libjpeg-turbo`
* `libpng`
* `libunistring`
* `qtutilities`
* `termcap`
* `zlib`
---
License `GPL2` of `FreeType`, `GCC`, `Graphite`, `Video Downloader`, `c++utilities`, `gettext`, `libunistring`, `qtutilities`, `termcap`:
> GNU GENERAL PUBLIC LICENSE
> Version 2, June 1991
>
> Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> Preamble
>
> The licenses for most software are designed to take away your
> freedom to share and change it. By contrast, the GNU General Public
> License is intended to guarantee your freedom to share and change free
> software--to make sure the software is free for all its users. This
> General Public License applies to most of the Free Software
> Foundation's software and to any other program whose authors commit to
> using it. (Some other Free Software Foundation software is covered by
> the GNU Lesser General Public License instead.) You can apply it to
> your programs, too.
>
> When we speak of free software, we are referring to freedom, not
> price. Our General Public Licenses are designed to make sure that you
> have the freedom to distribute copies of free software (and charge for
> this service if you wish), that you receive source code or can get it
> if you want it, that you can change the software or use pieces of it
> in new free programs; and that you know you can do these things.
>
> To protect your rights, we need to make restrictions that forbid
> anyone to deny you these rights or to ask you to surrender the rights.
> These restrictions translate to certain responsibilities for you if you
> distribute copies of the software, or if you modify it.
>
> For example, if you distribute copies of such a program, whether
> gratis or for a fee, you must give the recipients all the rights that
> you have. You must make sure that they, too, receive or can get the
> source code. And you must show them these terms so they know their
> rights.
>
> We protect your rights with two steps: (1) copyright the software, and
> (2) offer you this license which gives you legal permission to copy,
> distribute and/or modify the software.
>
> Also, for each author's protection and ours, we want to make certain
> that everyone understands that there is no warranty for this free
> software. If the software is modified by someone else and passed on, we
> want its recipients to know that what they have is not the original, so
> that any problems introduced by others will not reflect on the original
> authors' reputations.
>
> Finally, any free program is threatened constantly by software
> patents. We wish to avoid the danger that redistributors of a free
> program will individually obtain patent licenses, in effect making the
> program proprietary. To prevent this, we have made it clear that any
> patent must be licensed for everyone's free use or not licensed at all.
>
> The precise terms and conditions for copying, distribution and
> modification follow.
>
> GNU GENERAL PUBLIC LICENSE
> TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
>
> 0. This License applies to any program or other work which contains
> a notice placed by the copyright holder saying it may be distributed
> under the terms of this General Public License. The "Program", below,
> refers to any such program or work, and a "work based on the Program"
> means either the Program or any derivative work under copyright law:
> that is to say, a work containing the Program or a portion of it,
> either verbatim or with modifications and/or translated into another
> language. (Hereinafter, translation is included without limitation in
> the term "modification".) Each licensee is addressed as "you".
>
> Activities other than copying, distribution and modification are not
> covered by this License; they are outside its scope. The act of
> running the Program is not restricted, and the output from the Program
> is covered only if its contents constitute a work based on the
> Program (independent of having been made by running the Program).
> Whether that is true depends on what the Program does.
>
> 1. You may copy and distribute verbatim copies of the Program's
> source code as you receive it, in any medium, provided that you
> conspicuously and appropriately publish on each copy an appropriate
> copyright notice and disclaimer of warranty; keep intact all the
> notices that refer to this License and to the absence of any warranty;
> and give any other recipients of the Program a copy of this License
> along with the Program.
>
> You may charge a fee for the physical act of transferring a copy, and
> you may at your option offer warranty protection in exchange for a fee.
>
> 2. You may modify your copy or copies of the Program or any portion
> of it, thus forming a work based on the Program, and copy and
> distribute such modifications or work under the terms of Section 1
> above, provided that you also meet all of these conditions:
>
> a) You must cause the modified files to carry prominent notices
> stating that you changed the files and the date of any change.
>
> b) You must cause any work that you distribute or publish, that in
> whole or in part contains or is derived from the Program or any
> part thereof, to be licensed as a whole at no charge to all third
> parties under the terms of this License.
>
> c) If the modified program normally reads commands interactively
> when run, you must cause it, when started running for such
> interactive use in the most ordinary way, to print or display an
> announcement including an appropriate copyright notice and a
> notice that there is no warranty (or else, saying that you provide
> a warranty) and that users may redistribute the program under
> these conditions, and telling the user how to view a copy of this
> License. (Exception: if the Program itself is interactive but
> does not normally print such an announcement, your work based on
> the Program is not required to print an announcement.)
>
> These requirements apply to the modified work as a whole. If
> identifiable sections of that work are not derived from the Program,
> and can be reasonably considered independent and separate works in
> themselves, then this License, and its terms, do not apply to those
> sections when you distribute them as separate works. But when you
> distribute the same sections as part of a whole which is a work based
> on the Program, the distribution of the whole must be on the terms of
> this License, whose permissions for other licensees extend to the
> entire whole, and thus to each and every part regardless of who wrote it.
>
> Thus, it is not the intent of this section to claim rights or contest
> your rights to work written entirely by you; rather, the intent is to
> exercise the right to control the distribution of derivative or
> collective works based on the Program.
>
> In addition, mere aggregation of another work not based on the Program
> with the Program (or with a work based on the Program) on a volume of
> a storage or distribution medium does not bring the other work under
> the scope of this License.
>
> 3. You may copy and distribute the Program (or a work based on it,
> under Section 2) in object code or executable form under the terms of
> Sections 1 and 2 above provided that you also do one of the following:
>
> a) Accompany it with the complete corresponding machine-readable
> source code, which must be distributed under the terms of Sections
> 1 and 2 above on a medium customarily used for software interchange; or,
>
> b) Accompany it with a written offer, valid for at least three
> years, to give any third party, for a charge no more than your
> cost of physically performing source distribution, a complete
> machine-readable copy of the corresponding source code, to be
> distributed under the terms of Sections 1 and 2 above on a medium
> customarily used for software interchange; or,
>
> c) Accompany it with the information you received as to the offer
> to distribute corresponding source code. (This alternative is
> allowed only for noncommercial distribution and only if you
> received the program in object code or executable form with such
> an offer, in accord with Subsection b above.)
>
> The source code for a work means the preferred form of the work for
> making modifications to it. For an executable work, complete source
> code means all the source code for all modules it contains, plus any
> associated interface definition files, plus the scripts used to
> control compilation and installation of the executable. However, as a
> special exception, the source code distributed need not include
> anything that is normally distributed (in either source or binary
> form) with the major components (compiler, kernel, and so on) of the
> operating system on which the executable runs, unless that component
> itself accompanies the executable.
>
> If distribution of executable or object code is made by offering
> access to copy from a designated place, then offering equivalent
> access to copy the source code from the same place counts as
> distribution of the source code, even though third parties are not
> compelled to copy the source along with the object code.
>
> 4. You may not copy, modify, sublicense, or distribute the Program
> except as expressly provided under this License. Any attempt
> otherwise to copy, modify, sublicense or distribute the Program is
> void, and will automatically terminate your rights under this License.
> However, parties who have received copies, or rights, from you under
> this License will not have their licenses terminated so long as such
> parties remain in full compliance.
>
> 5. You are not required to accept this License, since you have not
> signed it. However, nothing else grants you permission to modify or
> distribute the Program or its derivative works. These actions are
> prohibited by law if you do not accept this License. Therefore, by
> modifying or distributing the Program (or any work based on the
> Program), you indicate your acceptance of this License to do so, and
> all its terms and conditions for copying, distributing or modifying
> the Program or works based on it.
>
> 6. Each time you redistribute the Program (or any work based on the
> Program), the recipient automatically receives a license from the
> original licensor to copy, distribute or modify the Program subject to
> these terms and conditions. You may not impose any further
> restrictions on the recipients' exercise of the rights granted herein.
> You are not responsible for enforcing compliance by third parties to
> this License.
>
> 7. If, as a consequence of a court judgment or allegation of patent
> infringement or for any other reason (not limited to patent issues),
> conditions are imposed on you (whether by court order, agreement or
> otherwise) that contradict the conditions of this License, they do not
> excuse you from the conditions of this License. If you cannot
> distribute so as to satisfy simultaneously your obligations under this
> License and any other pertinent obligations, then as a consequence you
> may not distribute the Program at all. For example, if a patent
> license would not permit royalty-free redistribution of the Program by
> all those who receive copies directly or indirectly through you, then
> the only way you could satisfy both it and this License would be to
> refrain entirely from distribution of the Program.
>
> If any portion of this section is held invalid or unenforceable under
> any particular circumstance, the balance of the section is intended to
> apply and the section as a whole is intended to apply in other
> circumstances.
>
> It is not the purpose of this section to induce you to infringe any
> patents or other property right claims or to contest validity of any
> such claims; this section has the sole purpose of protecting the
> integrity of the free software distribution system, which is
> implemented by public license practices. Many people have made
> generous contributions to the wide range of software distributed
> through that system in reliance on consistent application of that
> system; it is up to the author/donor to decide if he or she is willing
> to distribute software through any other system and a licensee cannot
> impose that choice.
>
> This section is intended to make thoroughly clear what is believed to
> be a consequence of the rest of this License.
>
> 8. If the distribution and/or use of the Program is restricted in
> certain countries either by patents or by copyrighted interfaces, the
> original copyright holder who places the Program under this License
> may add an explicit geographical distribution limitation excluding
> those countries, so that distribution is permitted only in or among
> countries not thus excluded. In such case, this License incorporates
> the limitation as if written in the body of this License.
>
> 9. The Free Software Foundation may publish revised and/or new versions
> of the General Public License from time to time. Such new versions will
> be similar in spirit to the present version, but may differ in detail to
> address new problems or concerns.
>
> Each version is given a distinguishing version number. If the Program
> specifies a version number of this License which applies to it and "any
> later version", you have the option of following the terms and conditions
> either of that version or of any later version published by the Free
> Software Foundation. If the Program does not specify a version number of
> this License, you may choose any version ever published by the Free Software
> Foundation.
>
> 10. If you wish to incorporate parts of the Program into other free
> programs whose distribution conditions are different, write to the author
> to ask for permission. For software which is copyrighted by the Free
> Software Foundation, write to the Free Software Foundation; we sometimes
> make exceptions for this. Our decision will be guided by the two goals
> of preserving the free status of all derivatives of our free software and
> of promoting the sharing and reuse of software generally.
>
> NO WARRANTY
>
> 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
> FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
> OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
> PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
> OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
> TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
> PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
> REPAIR OR CORRECTION.
>
> 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
> WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
> REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
> INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
> OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
> TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
> YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
> PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
> POSSIBILITY OF SUCH DAMAGES.
>
> END OF TERMS AND CONDITIONS
>
> How to Apply These Terms to Your New Programs
>
> If you develop a new program, and you want it to be of the greatest
> possible use to the public, the best way to achieve this is to make it
> free software which everyone can redistribute and change under these terms.
>
> To do so, attach the following notices to the program. It is safest
> to attach them to the start of each source file to most effectively
> convey the exclusion of warranty; and each file should have at least
> the "copyright" line and a pointer to where the full notice is found.
>
> <one line to give the program's name and a brief idea of what it does.>
> Copyright (C) <year> <name of author>
>
> This program is free software; you can redistribute it and/or modify
> it under the terms of the GNU General Public License 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.,
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
>
> Also add information on how to contact you by electronic and paper mail.
>
> If the program is interactive, make it output a short notice like this
> when it starts in an interactive mode:
>
> Gnomovision version 69, Copyright (C) year name of author
> Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
> This is free software, and you are welcome to redistribute it
> under certain conditions; type `show c' for details.
>
> The hypothetical commands `show w' and `show c' should show the appropriate
> parts of the General Public License. Of course, the commands you use may
> be called something other than `show w' and `show c'; they could even be
> mouse-clicks or menu items--whatever suits your program.
>
> You should also get your employer (if you work as a programmer) or your
> school, if any, to sign a "copyright disclaimer" for the program, if
> necessary. Here is a sample; alter the names:
>
> Yoyodyne, Inc., hereby disclaims all copyright interest in the program
> `Gnomovision' (which makes passes at compilers) written by James Hacker.
>
> <signature of Ty Coon>, 1 April 1989
> Ty Coon, President of Vice
>
> This General Public License does not permit incorporating your program into
> proprietary programs. If your program is a subroutine library, you may
> consider it more useful to permit linking proprietary applications with the
> library. If this is what you want to do, use the GNU Lesser General
> Public License instead of this License.
---
License `LGPL2.1` of `Breeze icons (from KDE)`, `GCC`, `GLib`, `Graphite`, `libiconv`, `termcap`:
> GNU LESSER GENERAL PUBLIC LICENSE
> Version 2.1, February 1999
>
> Copyright (C) 1991, 1999 Free Software Foundation, Inc.
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> [This is the first released version of the Lesser GPL. It also counts
> as the successor of the GNU Library Public License, version 2, hence
> the version number 2.1.]
>
> Preamble
>
> The licenses for most software are designed to take away your
> freedom to share and change it. By contrast, the GNU General Public
> Licenses are intended to guarantee your freedom to share and change
> free software--to make sure the software is free for all its users.
>
> This license, the Lesser General Public License, applies to some
> specially designated software packages--typically libraries--of the
> Free Software Foundation and other authors who decide to use it. You
> can use it too, but we suggest you first think carefully about whether
> this license or the ordinary General Public License is the better
> strategy to use in any particular case, based on the explanations below.
>
> When we speak of free software, we are referring to freedom of use,
> not price. Our General Public Licenses are designed to make sure that
> you have the freedom to distribute copies of free software (and charge
> for this service if you wish); that you receive source code or can get
> it if you want it; that you can change the software and use pieces of
> it in new free programs; and that you are informed that you can do
> these things.
>
> To protect your rights, we need to make restrictions that forbid
> distributors to deny you these rights or to ask you to surrender these
> rights. These restrictions translate to certain responsibilities for
> you if you distribute copies of the library or if you modify it.
>
> For example, if you distribute copies of the library, whether gratis
> or for a fee, you must give the recipients all the rights that we gave
> you. You must make sure that they, too, receive or can get the source
> code. If you link other code with the library, you must provide
> complete object files to the recipients, so that they can relink them
> with the library after making changes to the library and recompiling
> it. And you must show them these terms so they know their rights.
>
> We protect your rights with a two-step method: (1) we copyright the
> library, and (2) we offer you this license, which gives you legal
> permission to copy, distribute and/or modify the library.
>
> To protect each distributor, we want to make it very clear that
> there is no warranty for the free library. Also, if the library is
> modified by someone else and passed on, the recipients should know
> that what they have is not the original version, so that the original
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>
> Finally, software patents pose a constant threat to the existence of
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>
> Most GNU software, including some libraries, is covered by the
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> General Public License, applies to certain designated libraries, and
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>
> When a program is linked with a library, whether statically or using
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> Public License. It also provides other free software developers Less
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>
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>
> GNU LESSER GENERAL PUBLIC LICENSE
> TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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> That's all there is to it!
---
Licenses of `GCC`:
`license.txt`:
> GNU Free Documentation License
> Version 1.2, November 2002
>
>
> Copyright (C) 2000,2001,2002 Free Software Foundation, Inc.
> 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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> 0. PREAMBLE
>
> The purpose of this License is to make a manual, textbook, or other
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> 1. APPLICABILITY AND DEFINITIONS
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> O. Preserve any Warranty Disclaimers.
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>
> 5. COMBINING DOCUMENTS
>
> You may combine the Document with other documents released under this
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> list them all as Invariant Sections of your combined work in its
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> Make the same adjustment to the section titles in the list of
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> In the combination, you must combine any sections Entitled "History"
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> 6. COLLECTIONS OF DOCUMENTS
>
> You may make a collection consisting of the Document and other documents
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> 7. AGGREGATION WITH INDEPENDENT WORKS
>
> A compilation of the Document or its derivatives with other separate
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> 8. TRANSLATION
>
> Translation is considered a kind of modification, so you may
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> Replacing Invariant Sections with translations requires special
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> the translation and the original version of this License or a notice
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>
> If a section in the Document is Entitled "Acknowledgements",
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> its Title (section 1) will typically require changing the actual
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> 9. TERMINATION
>
> You may not copy, modify, sublicense, or distribute the Document except
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> 10. FUTURE REVISIONS OF THIS LICENSE
>
> The Free Software Foundation may publish new, revised versions
> of the GNU Free Documentation License from time to time. Such new
> versions will be similar in spirit to the present version, but may
> differ in detail to address new problems or concerns. See
> https://www.gnu.org/licenses/.
>
> Each version of the License is given a distinguishing version number.
> If the Document specifies that a particular numbered version of this
> License "or any later version" applies to it, you have the option of
> following the terms and conditions either of that specified version or
> of any later version that has been published (not as a draft) by the
> Free Software Foundation. If the Document does not specify a version
> number of this License, you may choose any version ever published (not
> as a draft) by the Free Software Foundation.
>
>
> ADDENDUM: How to use this License for your documents
>
> To use this License in a document you have written, include a copy of
> the License in the document and put the following copyright and
> license notices just after the title page:
>
> Copyright (c) YEAR YOUR NAME.
> Permission is granted to copy, distribute and/or modify this document
> under the terms of the GNU Free Documentation License, Version 1.2
> or any later version published by the Free Software Foundation;
> with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
> A copy of the license is included in the section entitled "GNU
> Free Documentation License".
>
> If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
> replace the "with...Texts." line with this:
>
> with the Invariant Sections being LIST THEIR TITLES, with the
> Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
>
> If you have Invariant Sections without Cover Texts, or some other
> combination of the three, merge those two alternatives to suit the
> situation.
>
> If your document contains nontrivial examples of program code, we
> recommend releasing these examples in parallel under your choice of
> free software license, such as the GNU General Public License,
> to permit their use in free software.
`usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION`:
> GCC RUNTIME LIBRARY EXCEPTION
>
> Version 3.1, 31 March 2009
>
> Copyright (C) 2009 Free Software Foundation, Inc. <http://fsf.org/>
>
> Everyone is permitted to copy and distribute verbatim copies of this
> license document, but changing it is not allowed.
>
> This GCC Runtime Library Exception ("Exception") is an additional
> permission under section 7 of the GNU General Public License, version
> 3 ("GPLv3"). It applies to a given file (the "Runtime Library") that
> bears a notice placed by the copyright holder of the file stating that
> the file is governed by GPLv3 along with this Exception.
>
> When you use GCC to compile a program, GCC may combine portions of
> certain GCC header files and runtime libraries with the compiled
> program. The purpose of this Exception is to allow compilation of
> non-GPL (including proprietary) programs to use, in this way, the
> header files and runtime libraries covered by this Exception.
>
> 0. Definitions.
>
> A file is an "Independent Module" if it either requires the Runtime
> Library for execution after a Compilation Process, or makes use of an
> interface provided by the Runtime Library, but is not otherwise based
> on the Runtime Library.
>
> "GCC" means a version of the GNU Compiler Collection, with or without
> modifications, governed by version 3 (or a specified later version) of
> the GNU General Public License (GPL) with the option of using any
> subsequent versions published by the FSF.
>
> "GPL-compatible Software" is software whose conditions of propagation,
> modification and use would permit combination with GCC in accord with
> the license of GCC.
>
> "Target Code" refers to output from any compiler for a real or virtual
> target processor architecture, in executable form or suitable for
> input to an assembler, loader, linker and/or execution
> phase. Notwithstanding that, Target Code does not include data in any
> format that is used as a compiler intermediate representation, or used
> for producing a compiler intermediate representation.
>
> The "Compilation Process" transforms code entirely represented in
> non-intermediate languages designed for human-written code, and/or in
> Java Virtual Machine byte code, into Target Code. Thus, for example,
> use of source code generators and preprocessors need not be considered
> part of the Compilation Process, since the Compilation Process can be
> understood as starting with the output of the generators or
> preprocessors.
>
> A Compilation Process is "Eligible" if it is done using GCC, alone or
> with other GPL-compatible software, or if it is done without using any
> work based on GCC. For example, using non-GPL-compatible Software to
> optimize any GCC intermediate representations would not qualify as an
> Eligible Compilation Process.
>
> 1. Grant of Additional Permission.
>
> You have permission to propagate a work of Target Code formed by
> combining the Runtime Library with Independent Modules, even if such
> propagation would otherwise violate the terms of GPLv3, provided that
> all Target Code was generated by Eligible Compilation Processes. You
> may then convey such a combination under terms of your choice,
> consistent with the licensing of the Independent Modules.
>
> 2. No Weakening of GCC Copyleft.
>
> The availability of this Exception does not imply any general
> presumption that third-party software is unaffected by the copyleft
> requirements of the license of GCC.
>
---
License of `Graphite`:
> /* GRAPHITE2 LICENSING
>
> Copyright 2010, SIL International
> All rights reserved.
>
> This library is free software; you can redistribute it and/or modify
> it under the terms of the GNU Lesser General Public License as published
> by the Free Software Foundation; either version 2.1 of 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
> Lesser General Public License for more details.
>
> You should also have received a copy of the GNU Lesser General Public
> License along with this library in the file named "LICENSE".
> If not, write to the Free Software Foundation, 51 Franklin Street,
> Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
> internet at http://www.fsf.org/licenses/lgpl.html.
>
> Alternatively, you may use this library under the terms of the Mozilla
> Public License (http://mozilla.org/MPL) or under the GNU General Public
> License, as published by the Free Sofware Foundation; either version
> 2 of the license or (at your option) any later version.
> */
---
License of `HarfBuzz`:
> HarfBuzz is licensed under the so-called "Old MIT" license. Details follow.
> For parts of HarfBuzz that are licensed under different licenses see individual
> files names COPYING in subdirectories where applicable.
>
> Copyright © 2010,2011,2012,2013,2014,2015,2016,2017,2018,2019 Google, Inc.
> Copyright © 2019 Facebook, Inc.
> Copyright © 2012 Mozilla Foundation
> Copyright © 2011 Codethink Limited
> Copyright © 2008,2010 Nokia Corporation and/or its subsidiary(-ies)
> Copyright © 2009 Keith Stribley
> Copyright © 2009 Martin Hosken and SIL International
> Copyright © 2007 Chris Wilson
> Copyright © 2006 Behdad Esfahbod
> Copyright © 2005 David Turner
> Copyright © 2004,2007,2008,2009,2010 Red Hat, Inc.
> Copyright © 1998-2004 David Turner and Werner Lemberg
>
> For full copyright notices consult the individual files in the package.
>
>
> Permission is hereby granted, without written agreement and without
> license or royalty fees, to use, copy, modify, and distribute this
> software and its documentation for any purpose, provided that the
> above copyright notice and the following two paragraphs appear in
> all copies of this software.
>
> IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
> DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
> ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
> IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
> DAMAGE.
>
> THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
> BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
> FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
> ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
> PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
---
Licenses of `MinGW-w64`:
`usr/share/licenses/mingw-w64-headers/COPYING.MinGW-w64-runtime.txt`:
> MinGW-w64 runtime licensing
> ***************************
>
> This program or library was built using MinGW-w64 and statically
> linked against the MinGW-w64 runtime. Some parts of the runtime
> are under licenses which require that the copyright and license
> notices are included when distributing the code in binary form.
> These notices are listed below.
>
>
> ========================
> Overall copyright notice
> ========================
>
> Copyright (c) 2009, 2010, 2011, 2012, 2013 by the mingw-w64 project
>
> This license has been certified as open source. It has also been designated
> as GPL compatible by the Free Software Foundation (FSF).
>
> Redistribution and use in source and binary forms, with or without
> modification, are permitted provided that the following conditions are met:
>
> 1. Redistributions in source code must retain the accompanying copyright
> notice, this list of conditions, and the following disclaimer.
> 2. Redistributions in binary form must reproduce the accompanying
> copyright notice, this list of conditions, and the following disclaimer
> in the documentation and/or other materials provided with the
> distribution.
> 3. Names of the copyright holders must not be used to endorse or promote
> products derived from this software without prior written permission
> from the copyright holders.
> 4. The right to distribute this software or to use it for any purpose does
> not give you the right to use Servicemarks (sm) or Trademarks (tm) of
> the copyright holders. Use of them is covered by separate agreement
> with the copyright holders.
> 5. If any files are modified, you must cause the modified files to carry
> prominent notices stating that you changed the files and the date of
> any change.
>
> Disclaimer
>
> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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 COPYRIGHT HOLDERS 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.
>
> ========================================
> getopt, getopt_long, and getop_long_only
> ========================================
>
> Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
>
> 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 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.
>
> Sponsored in part by the Defense Advanced Research Projects
> Agency (DARPA) and Air Force Research Laboratory, Air Force
> Materiel Command, USAF, under agreement number F39502-99-1-0512.
>
> * * * * * * *
>
> Copyright (c) 2000 The NetBSD Foundation, Inc.
> All rights reserved.
>
> This code is derived from software contributed to The NetBSD Foundation
> by Dieter Baron and Thomas Klausner.
>
> 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
>
>
> ===============================================================
> gdtoa: Converting between IEEE floating point numbers and ASCII
> ===============================================================
>
> The author of this software is David M. Gay.
>
> Copyright (C) 1997, 1998, 1999, 2000, 2001 by Lucent Technologies
> All Rights Reserved
>
> Permission to use, copy, modify, and distribute this software and
> its documentation for any purpose and without fee is hereby
> granted, provided that the above copyright notice appear in all
> copies and that both that the copyright notice and this
> permission notice and warranty disclaimer appear in supporting
> documentation, and that the name of Lucent or any of its entities
> not be used in advertising or publicity pertaining to
> distribution of the software without specific, written prior
> permission.
>
> LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
> IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
> SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> WHATSOEVER RESULTING FROM LOSS OF 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.
>
> * * * * * * *
>
> The author of this software is David M. Gay.
>
> Copyright (C) 2005 by David M. Gay
> All Rights Reserved
>
> Permission to use, copy, modify, and distribute this software and its
> documentation for any purpose and without fee is hereby granted,
> provided that the above copyright notice appear in all copies and that
> both that the copyright notice and this permission notice and warranty
> disclaimer appear in supporting documentation, and that the name of
> the author or any of his current or former employers not be used in
> advertising or publicity pertaining to distribution of the software
> without specific, written prior permission.
>
> THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
> NO EVENT SHALL THE AUTHOR OR ANY OF HIS CURRENT OR FORMER EMPLOYERS BE
> LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
> DAMAGES WHATSOEVER RESULTING FROM LOSS OF 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.
>
> * * * * * * *
>
> The author of this software is David M. Gay.
>
> Copyright (C) 2004 by David M. Gay.
> All Rights Reserved
> Based on material in the rest of /netlib/fp/gdota.tar.gz,
> which is copyright (C) 1998, 2000 by Lucent Technologies.
>
> Permission to use, copy, modify, and distribute this software and
> its documentation for any purpose and without fee is hereby
> granted, provided that the above copyright notice appear in all
> copies and that both that the copyright notice and this
> permission notice and warranty disclaimer appear in supporting
> documentation, and that the name of Lucent or any of its entities
> not be used in advertising or publicity pertaining to
> distribution of the software without specific, written prior
> permission.
>
> LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
> IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
> SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> WHATSOEVER RESULTING FROM LOSS OF 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.
>
>
> =========================
> Parts of the math library
> =========================
>
> Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
>
> Developed at SunSoft, a Sun Microsystems, Inc. business.
> Permission to use, copy, modify, and distribute this
> software is freely granted, provided that this notice
> is preserved.
>
> * * * * * * *
>
> Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
>
> Developed at SunPro, a Sun Microsystems, Inc. business.
> Permission to use, copy, modify, and distribute this
> software is freely granted, provided that this notice
> is preserved.
>
> * * * * * * *
>
> FIXME: Cephes math lib
> Copyright (C) 1984-1998 Stephen L. Moshier
>
> It sounds vague, but as to be found at
> <http://lists.debian.org/debian-legal/2004/12/msg00295.html>, it gives an
> impression that the author could be willing to give an explicit
> permission to distribute those files e.g. under a BSD style license. So
> probably there is no problem here, although it could be good to get a
> permission from the author and then add a license into the Cephes files
> in MinGW runtime. At least on follow-up it is marked that debian sees the
> version a-like BSD one. As MinGW.org (where those cephes parts are coming
> from) distributes them now over 6 years, it should be fine.
>
> ===================================
> Headers and IDLs imported from Wine
> ===================================
>
> Some header and IDL files were imported from the Wine project. These files
> are prominent maked in source. Their copyright belongs to contributors and
> they are distributed under LGPL license.
>
> Disclaimer
>
> This library is free software; you can redistribute it and/or
> modify it under the terms of the GNU Lesser General Public
> License as published by the Free Software Foundation; either
> version 2.1 of the License, or (at your option) any later version.
>
> This library 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
> Lesser General Public License for more details.
`usr/share/licenses/mingw-w64-headers/COPYING.MinGW-w64.txt`:
> MinGW-w64 licensing
> *******************
>
> The copyright and license notices have been divided in two files:
> The notices in COPYING.MinGW-w64.txt (this file) apply only to
> MinGW-w64 itself. These don't apply to the binaries built with
> MinGW-w64 unless you specifically tell MinGW-w64 to link against
> these parts, for example, by enabling profiling code.
>
> In addition to the notices in this file, also the notices in
> COPYING.MinGW-w64-runtime.txt apply to MinGW-w64. Some (possibly
> all) notices in that file may apply also to the binaries built with
> this version of MinGW-w64. The idea is that if you create binary
> packages of your software with MinGW-w64, you can simply copy
> COPYING.MinGW-w64-runtime.txt into your package to fulfill the
> license requirements of the MinGW runtime.
>
> If you think that not all notices apply to your package and want to
> remove some of them, note that, for example, the gdtoa files always
> get linked in if you use any printf-like function. So usually it is
> easiest and safest to just keep all the notices.
>
>
> ====================
> GCC and GNU binutils
> ====================
>
> Copyright (C) Free Software Foundation
> License: GNU GPLv3+ (see the file COPYING.GPLv3)
>
>
> ==============
> Profiling code
> ==============
>
> Copyright 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
> License: GNU GPLv2+ (see the file COPYING.GPLv2)
>
> * * * * * * *
>
> Copyright (c) 1982, 1983, 1986, 1992, 1993
> The Regents of the University of California. 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.
> 4. 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.
>
>
> =======================
> DirectX and DDK headers
> =======================
>
> DirectX and DDK headers are under GNU LGPLv2.1+ (see the file
> COPYING.LGPLv2.1) and copyrighted by various people. Using these
> headers doesn't make LGPLv2.1 apply to your code, because these
> headers files contain only data structure definitions, short
> macros, and short inline functions. Here is the relevant part
> from LGPLv2.1 section 5 paragraph 4:
>
> If such an object file uses only numerical parameters, data
> structure layouts and accessors, and small macros and small
> inline functions (ten lines or less in length), then the use
> of the object file is unrestricted, regardless of whether it
> is legally a derivative work.
>
> ====================
> libmangle and gendef
> ====================
>
> Copyright (c) 2009 mingw-w64 project
>
> Contributing authors: Kai Tietz, Jonathan Yong
>
> 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.
>
>
> ====
> PSEH
> ====
>
> Copyright (c) 2004-2008 KJK::Hyperion
>
> 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.
`usr/share/licenses/mingw-w64-headers/ddk-readme.txt`:
> DDK sdk for x86 and x64 platforms.
> ----------------------------------
>
> You can check for existance of this optional package by verifying
> the definition of the macro MINGW_HAS_DDK_H.
>
> The DDK headers are from the ReactOS project, from their svn repo
> svn://svn.reactos.org/reactos/trunk/reactos/include/ddk/
>
> This is an optional SDK. Some of the headers are public domain and
> some of them are under LGPL license. You can obtain the original
> sources from the ReactOS project.
>
> How to install this SDK
> ----------------------------------
> Please simply copy the content of the include directory within the
> include folder of our header-set. Most of the needed import libraries
> are already generated within the crt build, so you shouldn't need
> any further compilation.
>
`usr/share/licenses/mingw-w64-headers/direct-x-COPYING.LIB`:
> GNU LESSER GENERAL PUBLIC LICENSE
> Version 2.1, February 1999
>
> Copyright (C) 1991, 1999 Free Software Foundation, Inc.
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> [This is the first released version of the Lesser GPL. It also counts
> as the successor of the GNU Library Public License, version 2, hence
> the version number 2.1.]
>
> Preamble
>
> The licenses for most software are designed to take away your
> freedom to share and change it. By contrast, the GNU General Public
> Licenses are intended to guarantee your freedom to share and change
> free software--to make sure the software is free for all its users.
>
> This license, the Lesser General Public License, applies to some
> specially designated software packages--typically libraries--of the
> Free Software Foundation and other authors who decide to use it. You
> can use it too, but we suggest you first think carefully about whether
> this license or the ordinary General Public License is the better
> strategy to use in any particular case, based on the explanations below.
>
> When we speak of free software, we are referring to freedom of use,
> not price. Our General Public Licenses are designed to make sure that
> you have the freedom to distribute copies of free software (and charge
> for this service if you wish); that you receive source code or can get
> it if you want it; that you can change the software and use pieces of
> it in new free programs; and that you are informed that you can do
> these things.
>
> To protect your rights, we need to make restrictions that forbid
> distributors to deny you these rights or to ask you to surrender these
> rights. These restrictions translate to certain responsibilities for
> you if you distribute copies of the library or if you modify it.
>
> For example, if you distribute copies of the library, whether gratis
> or for a fee, you must give the recipients all the rights that we gave
> you. You must make sure that they, too, receive or can get the source
> code. If you link other code with the library, you must provide
> complete object files to the recipients, so that they can relink them
> with the library after making changes to the library and recompiling
> it. And you must show them these terms so they know their rights.
>
> We protect your rights with a two-step method: (1) we copyright the
> library, and (2) we offer you this license, which gives you legal
> permission to copy, distribute and/or modify the library.
>
> To protect each distributor, we want to make it very clear that
> there is no warranty for the free library. Also, if the library is
> modified by someone else and passed on, the recipients should know
> that what they have is not the original version, so that the original
> author's reputation will not be affected by problems that might be
> introduced by others.
>
> Finally, software patents pose a constant threat to the existence of
> any free program. We wish to make sure that a company cannot
> effectively restrict the users of a free program by obtaining a
> restrictive license from a patent holder. Therefore, we insist that
> any patent license obtained for a version of the library must be
> consistent with the full freedom of use specified in this license.
>
> Most GNU software, including some libraries, is covered by the
> ordinary GNU General Public License. This license, the GNU Lesser
> General Public License, applies to certain designated libraries, and
> is quite different from the ordinary General Public License. We use
> this license for certain libraries in order to permit linking those
> libraries into non-free programs.
>
> When a program is linked with a library, whether statically or using
> a shared library, the combination of the two is legally speaking a
> combined work, a derivative of the original library. The ordinary
> General Public License therefore permits such linking only if the
> entire combination fits its criteria of freedom. The Lesser General
> Public License permits more lax criteria for linking other code with
> the library.
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`usr/share/licenses/mingw-w64-headers/direct-x-readme.txt`:
> The direct-x sdk.
> ----------------
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> Supported version 7
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> How to install this SDK
> -----------------------
> Please simply copy the content of the include directory within the include
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---
License of `Numix icon theme`:
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> 7. Additional Terms.
>
> "Additional permissions" are terms that supplement the terms of this
> License by making exceptions from one or more of its conditions.
> Additional permissions that are applicable to the entire Program shall
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> that they are valid under applicable law. If additional permissions
> apply only to part of the Program, that part may be used separately
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> this License without regard to the additional permissions.
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> When you convey a copy of a covered work, you may at your option
> remove any additional permissions from that copy, or from any part of
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> your receipt of the notice.
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> material under section 10.
>
> 9. Acceptance Not Required for Having Copies.
>
> You are not required to accept this License in order to receive or
> run a copy of the Program. Ancillary propagation of a covered work
> occurring solely as a consequence of using peer-to-peer transmission
> to receive a copy likewise does not require acceptance. However,
> nothing other than this License grants you permission to propagate or
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>
> 10. Automatic Licensing of Downstream Recipients.
>
> Each time you convey a covered work, the recipient automatically
> receives a license from the original licensors, to run, modify and
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> (including a cross-claim or counterclaim in a lawsuit) alleging that
> any patent claim is infringed by making, using, selling, offering for
> sale, or importing the Program or any portion of it.
>
> 11. Patents.
>
> A "contributor" is a copyright holder who authorizes use under this
> License of the Program or a work on which the Program is based. The
> work thus licensed is called the contributor's "contributor version".
>
> A contributor's "essential patent claims" are all patent claims
> owned or controlled by the contributor, whether already acquired or
> hereafter acquired, that would be infringed by some manner, permitted
> by this License, of making, using, or selling its contributor version,
> but do not include claims that would be infringed only as a
> consequence of further modification of the contributor version. For
> purposes of this definition, "control" includes the right to grant
> patent sublicenses in a manner consistent with the requirements of
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> patent license under the contributor's essential patent claims, to
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> propagate the contents of its contributor version.
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> In the following three paragraphs, a "patent license" is any express
> agreement or commitment, however denominated, not to enforce a patent
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>
> If you convey a covered work, knowingly relying on a patent license,
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> then you must either (1) cause the Corresponding Source to be so
> available, or (2) arrange to deprive yourself of the benefit of the
> patent license for this particular work, or (3) arrange, in a manner
> consistent with the requirements of this License, to extend the patent
> license to downstream recipients. "Knowingly relying" means you have
> actual knowledge that, but for the patent license, your conveying the
> covered work in a country, or your recipient's use of the covered work
> in a country, would infringe one or more identifiable patents in that
> country that you have reason to believe are valid.
>
> If, pursuant to or in connection with a single transaction or
> arrangement, you convey, or propagate by procuring conveyance of, a
> covered work, and grant a patent license to some of the parties
> receiving the covered work authorizing them to use, propagate, modify
> or convey a specific copy of the covered work, then the patent license
> you grant is automatically extended to all recipients of the covered
> work and works based on it.
>
> A patent license is "discriminatory" if it does not include within
> the scope of its coverage, prohibits the exercise of, or is
> conditioned on the non-exercise of one or more of the rights that are
> specifically granted under this License. You may not convey a covered
> work if you are a party to an arrangement with a third party that is
> in the business of distributing software, under which you make payment
> to the third party based on the extent of your activity of conveying
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> parties who would receive the covered work from you, a discriminatory
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> conveyed by you (or copies made from those copies), or (b) primarily
> for and in connection with specific products or compilations that
> contain the covered work, unless you entered into that arrangement,
> or that patent license was granted, prior to 28 March 2007.
>
> Nothing in this License shall be construed as excluding or limiting
> any implied license or other defenses to infringement that may
> otherwise be available to you under applicable patent law.
>
> 12. No Surrender of Others' Freedom.
>
> If conditions are imposed on you (whether by court order, agreement or
> otherwise) that contradict the conditions of this License, they do not
> excuse you from the conditions of this License. If you cannot convey a
> covered work so as to satisfy simultaneously your obligations under this
> License and any other pertinent obligations, then as a consequence you may
> not convey it at all. For example, if you agree to terms that obligate you
> to collect a royalty for further conveying from those to whom you convey
> the Program, the only way you could satisfy both those terms and this
> License would be to refrain entirely from conveying the Program.
>
> 13. Use with the GNU Affero General Public License.
>
> Notwithstanding any other provision of this License, you have
> permission to link or combine any covered work with a work licensed
> under version 3 of the GNU Affero General Public License into a single
> combined work, and to convey the resulting work. The terms of this
> License will continue to apply to the part which is the covered work,
> but the special requirements of the GNU Affero General Public License,
> section 13, concerning interaction through a network will apply to the
> combination as such.
>
> 14. Revised Versions of this License.
>
> The Free Software Foundation may publish revised and/or new versions of
> the GNU General Public License from time to time. Such new versions will
> be similar in spirit to the present version, but may differ in detail to
> address new problems or concerns.
>
> Each version is given a distinguishing version number. If the
> Program specifies that a certain numbered version of the GNU General
> Public License "or any later version" applies to it, you have the
> option of following the terms and conditions either of that numbered
> version or of any later version published by the Free Software
> Foundation. If the Program does not specify a version number of the
> GNU General Public License, you may choose any version ever published
> by the Free Software Foundation.
>
> If the Program specifies that a proxy can decide which future
> versions of the GNU General Public License can be used, that proxy's
> public statement of acceptance of a version permanently authorizes you
> to choose that version for the Program.
>
> Later license versions may give you additional or different
> permissions. However, no additional obligations are imposed on any
> author or copyright holder as a result of your choosing to follow a
> later version.
>
> 15. Disclaimer of Warranty.
>
> THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
> APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
> HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
> OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
> THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
> PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
> IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
> ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
>
> 16. Limitation of Liability.
>
> IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
> WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
> THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
> GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
> USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
> DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
> PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
> EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
> SUCH DAMAGES.
>
> 17. Interpretation of Sections 15 and 16.
>
> If the disclaimer of warranty and limitation of liability provided
> above cannot be given local legal effect according to their terms,
> reviewing courts shall apply local law that most closely approximates
> an absolute waiver of all civil liability in connection with the
> Program, unless a warranty or assumption of liability accompanies a
> copy of the Program in return for a fee.
>
> END OF TERMS AND CONDITIONS
>
> How to Apply These Terms to Your New Programs
>
> If you develop a new program, and you want it to be of the greatest
> possible use to the public, the best way to achieve this is to make it
> free software which everyone can redistribute and change under these terms.
>
> To do so, attach the following notices to the program. It is safest
> to attach them to the start of each source file to most effectively
> state the exclusion of warranty; and each file should have at least
> the "copyright" line and a pointer to where the full notice is found.
>
> <one line to give the program's name and a brief idea of what it does.>
> Copyright (C) <year> <name of author>
>
> This program is free software: you can redistribute it and/or modify
> it under the terms of the GNU General Public License as published by
> the Free Software Foundation, either version 3 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, see <https://www.gnu.org/licenses/>.
>
> Also add information on how to contact you by electronic and paper mail.
>
> If the program does terminal interaction, make it output a short
> notice like this when it starts in an interactive mode:
>
> <program> Copyright (C) <year> <name of author>
> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
> This is free software, and you are welcome to redistribute it
> under certain conditions; type `show c' for details.
>
> The hypothetical commands `show w' and `show c' should show the appropriate
> parts of the General Public License. Of course, your program's commands
> might be different; for a GUI interface, you would use an "about box".
>
> You should also get your employer (if you work as a programmer) or school,
> if any, to sign a "copyright disclaimer" for the program, if necessary.
> For more information on this, and how to apply and follow the GNU GPL, see
> <https://www.gnu.org/licenses/>.
>
> The GNU General Public License does not permit incorporating your program
> into proprietary programs. If your program is a subroutine library, you
> may consider it more useful to permit linking proprietary applications with
> the library. If this is what you want to do, use the GNU Lesser General
> Public License instead of this License. But first, please read
> <https://www.gnu.org/licenses/why-not-lgpl.html>.
---
License of `OpenSSL`:
>
> LICENSE ISSUES
> ==============
>
> The OpenSSL toolkit stays under a double license, i.e. both the conditions of
> the OpenSSL License and the original SSLeay license apply to the toolkit.
> See below for the actual license texts.
>
> OpenSSL License
> ---------------
>
> /* ====================================================================
> * 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).
> *
> */
>
> Original 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.]
> */
>
---
License of `PCRE`:
> PCRE LICENCE
> ------------
>
> PCRE is a library of functions to support regular expressions whose syntax
> and semantics are as close as possible to those of the Perl 5 language.
>
> Release 8 of PCRE is distributed under the terms of the "BSD" licence, as
> specified below. The documentation for PCRE, supplied in the "doc"
> directory, is distributed under the same terms as the software itself. The data
> in the testdata directory is not copyrighted and is in the public domain.
>
> The basic library functions are written in C and are freestanding. Also
> included in the distribution is a set of C++ wrapper functions, and a
> just-in-time compiler that can be used to optimize pattern matching. These
> are both optional features that can be omitted when the library is built.
>
>
> THE BASIC LIBRARY FUNCTIONS
> ---------------------------
>
> Written by: Philip Hazel
> Email local part: ph10
> Email domain: cam.ac.uk
>
> University of Cambridge Computing Service,
> Cambridge, England.
>
> Copyright (c) 1997-2019 University of Cambridge
> All rights reserved.
>
>
> PCRE JUST-IN-TIME COMPILATION SUPPORT
> -------------------------------------
>
> Written by: Zoltan Herczeg
> Email local part: hzmester
> Email domain: freemail.hu
>
> Copyright(c) 2010-2019 Zoltan Herczeg
> All rights reserved.
>
>
> STACK-LESS JUST-IN-TIME COMPILER
> --------------------------------
>
> Written by: Zoltan Herczeg
> Email local part: hzmester
> Email domain: freemail.hu
>
> Copyright(c) 2009-2019 Zoltan Herczeg
> All rights reserved.
>
>
> THE C++ WRAPPER FUNCTIONS
> -------------------------
>
> Contributed by: Google Inc.
>
> Copyright (c) 2007-2012, Google Inc.
> All rights reserved.
>
>
> THE "BSD" LICENCE
> -----------------
>
> Redistribution and use in source and binary forms, with or without
> modification, are permitted provided that the following conditions are met:
>
> * Redistributions of source code must retain the above copyright notice,
> this list of conditions and the following disclaimer.
>
> * 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.
>
> * Neither the name of the University of Cambridge nor the name of Google
> Inc. nor the names of their contributors may be used to endorse or
> promote products derived from this software without specific prior
> written permission.
>
> 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, 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
---
License of `PCRE2`:
> PCRE2 LICENCE
> -------------
>
> PCRE2 is a library of functions to support regular expressions whose syntax
> and semantics are as close as possible to those of the Perl 5 language.
>
> Releases 10.00 and above of PCRE2 are distributed under the terms of the "BSD"
> licence, as specified below, with one exemption for certain binary
> redistributions. The documentation for PCRE2, supplied in the "doc" directory,
> is distributed under the same terms as the software itself. The data in the
> testdata directory is not copyrighted and is in the public domain.
>
> The basic library functions are written in C and are freestanding. Also
> included in the distribution is a just-in-time compiler that can be used to
> optimize pattern matching. This is an optional feature that can be omitted when
> the library is built.
>
>
> THE BASIC LIBRARY FUNCTIONS
> ---------------------------
>
> Written by: Philip Hazel
> Email local part: ph10
> Email domain: cam.ac.uk
>
> University of Cambridge Computing Service,
> Cambridge, England.
>
> Copyright (c) 1997-2019 University of Cambridge
> All rights reserved.
>
>
> PCRE2 JUST-IN-TIME COMPILATION SUPPORT
> --------------------------------------
>
> Written by: Zoltan Herczeg
> Email local part: hzmester
> Email domain: freemail.hu
>
> Copyright(c) 2010-2019 Zoltan Herczeg
> All rights reserved.
>
>
> STACK-LESS JUST-IN-TIME COMPILER
> --------------------------------
>
> Written by: Zoltan Herczeg
> Email local part: hzmester
> Email domain: freemail.hu
>
> Copyright(c) 2009-2019 Zoltan Herczeg
> All rights reserved.
>
>
> THE "BSD" LICENCE
> -----------------
>
> Redistribution and use in source and binary forms, with or without
> modification, are permitted provided that the following conditions are met:
>
> * Redistributions of source code must retain the above copyright notices,
> this list of conditions and the following disclaimer.
>
> * Redistributions in binary form must reproduce the above copyright
> notices, this list of conditions and the following disclaimer in the
> documentation and/or other materials provided with the distribution.
>
> * Neither the name of the University of Cambridge nor the names of any
> contributors may be used to endorse or promote products derived from this
> software without specific prior written permission.
>
> 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, 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.
>
>
> EXEMPTION FOR BINARY LIBRARY-LIKE PACKAGES
> ------------------------------------------
>
> The second condition in the BSD licence (covering binary redistributions) does
> not apply all the way down a chain of software. If binary package A includes
> PCRE2, it must respect the condition, but if package B is software that
> includes package A, the condition is not imposed on package B unless it uses
> PCRE2 independently.
>
> End
---
Licenses of `Qt 5`:
`usr/share/licenses/qt5-base/LICENSE.FDL`:
> GNU Free Documentation License
> Version 1.3, 3 November 2008
>
>
> Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
> <http://fsf.org/>
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> 0. PREAMBLE
>
> The purpose of this License is to make a manual, textbook, or other
> functional and useful document "free" in the sense of freedom: to
> assure everyone the effective freedom to copy and redistribute it,
> with or without modifying it, either commercially or noncommercially.
> Secondarily, this License preserves for the author and publisher a way
> to get credit for their work, while not being considered responsible
> for modifications made by others.
>
> This License is a kind of "copyleft", which means that derivative
> works of the document must themselves be free in the same sense. It
> complements the GNU General Public License, which is a copyleft
> license designed for free software.
>
> We have designed this License in order to use it for manuals for free
> software, because free software needs free documentation: a free
> program should come with manuals providing the same freedoms that the
> software does. But this License is not limited to software manuals;
> it can be used for any textual work, regardless of subject matter or
> whether it is published as a printed book. We recommend this License
> principally for works whose purpose is instruction or reference.
>
>
> 1. APPLICABILITY AND DEFINITIONS
>
> This License applies to any manual or other work, in any medium, that
> contains a notice placed by the copyright holder saying it can be
> distributed under the terms of this License. Such a notice grants a
> world-wide, royalty-free license, unlimited in duration, to use that
> work under the conditions stated herein. The "Document", below,
> refers to any such manual or work. Any member of the public is a
> licensee, and is addressed as "you". You accept the license if you
> copy, modify or distribute the work in a way requiring permission
> under copyright law.
>
> A "Modified Version" of the Document means any work containing the
> Document or a portion of it, either copied verbatim, or with
> modifications and/or translated into another language.
>
> A "Secondary Section" is a named appendix or a front-matter section of
> the Document that deals exclusively with the relationship of the
> publishers or authors of the Document to the Document's overall
> subject (or to related matters) and contains nothing that could fall
> directly within that overall subject. (Thus, if the Document is in
> part a textbook of mathematics, a Secondary Section may not explain
> any mathematics.) The relationship could be a matter of historical
> connection with the subject or with related matters, or of legal,
> commercial, philosophical, ethical or political position regarding
> them.
>
> The "Invariant Sections" are certain Secondary Sections whose titles
> are designated, as being those of Invariant Sections, in the notice
> that says that the Document is released under this License. If a
> section does not fit the above definition of Secondary then it is not
> allowed to be designated as Invariant. The Document may contain zero
> Invariant Sections. If the Document does not identify any Invariant
> Sections then there are none.
>
> The "Cover Texts" are certain short passages of text that are listed,
> as Front-Cover Texts or Back-Cover Texts, in the notice that says that
> the Document is released under this License. A Front-Cover Text may
> be at most 5 words, and a Back-Cover Text may be at most 25 words.
>
> A "Transparent" copy of the Document means a machine-readable copy,
> represented in a format whose specification is available to the
> general public, that is suitable for revising the document
> straightforwardly with generic text editors or (for images composed of
> pixels) generic paint programs or (for drawings) some widely available
> drawing editor, and that is suitable for input to text formatters or
> for automatic translation to a variety of formats suitable for input
> to text formatters. A copy made in an otherwise Transparent file
> format whose markup, or absence of markup, has been arranged to thwart
> or discourage subsequent modification by readers is not Transparent.
> An image format is not Transparent if used for any substantial amount
> of text. A copy that is not "Transparent" is called "Opaque".
>
> Examples of suitable formats for Transparent copies include plain
> ASCII without markup, Texinfo input format, LaTeX input format, SGML
> or XML using a publicly available DTD, and standard-conforming simple
> HTML, PostScript or PDF designed for human modification. Examples of
> transparent image formats include PNG, XCF and JPG. Opaque formats
> include proprietary formats that can be read and edited only by
> proprietary word processors, SGML or XML for which the DTD and/or
> processing tools are not generally available, and the
> machine-generated HTML, PostScript or PDF produced by some word
> processors for output purposes only.
>
> The "Title Page" means, for a printed book, the title page itself,
> plus such following pages as are needed to hold, legibly, the material
> this License requires to appear in the title page. For works in
> formats which do not have any title page as such, "Title Page" means
> the text near the most prominent appearance of the work's title,
> preceding the beginning of the body of the text.
>
> The "publisher" means any person or entity that distributes copies of
> the Document to the public.
>
> A section "Entitled XYZ" means a named subunit of the Document whose
> title either is precisely XYZ or contains XYZ in parentheses following
> text that translates XYZ in another language. (Here XYZ stands for a
> specific section name mentioned below, such as "Acknowledgements",
> "Dedications", "Endorsements", or "History".) To "Preserve the Title"
> of such a section when you modify the Document means that it remains a
> section "Entitled XYZ" according to this definition.
>
> The Document may include Warranty Disclaimers next to the notice which
> states that this License applies to the Document. These Warranty
> Disclaimers are considered to be included by reference in this
> License, but only as regards disclaiming warranties: any other
> implication that these Warranty Disclaimers may have is void and has
> no effect on the meaning of this License.
>
> 2. VERBATIM COPYING
>
> You may copy and distribute the Document in any medium, either
> commercially or noncommercially, provided that this License, the
> copyright notices, and the license notice saying this License applies
> to the Document are reproduced in all copies, and that you add no
> other conditions whatsoever to those of this License. You may not use
> technical measures to obstruct or control the reading or further
> copying of the copies you make or distribute. However, you may accept
> compensation in exchange for copies. If you distribute a large enough
> number of copies you must also follow the conditions in section 3.
>
> You may also lend copies, under the same conditions stated above, and
> you may publicly display copies.
>
>
> 3. COPYING IN QUANTITY
>
> If you publish printed copies (or copies in media that commonly have
> printed covers) of the Document, numbering more than 100, and the
> Document's license notice requires Cover Texts, you must enclose the
> copies in covers that carry, clearly and legibly, all these Cover
> Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
> the back cover. Both covers must also clearly and legibly identify
> you as the publisher of these copies. The front cover must present
> the full title with all words of the title equally prominent and
> visible. You may add other material on the covers in addition.
> Copying with changes limited to the covers, as long as they preserve
> the title of the Document and satisfy these conditions, can be treated
> as verbatim copying in other respects.
>
> If the required texts for either cover are too voluminous to fit
> legibly, you should put the first ones listed (as many as fit
> reasonably) on the actual cover, and continue the rest onto adjacent
> pages.
>
> If you publish or distribute Opaque copies of the Document numbering
> more than 100, you must either include a machine-readable Transparent
> copy along with each Opaque copy, or state in or with each Opaque copy
> a computer-network location from which the general network-using
> public has access to download using public-standard network protocols
> a complete Transparent copy of the Document, free of added material.
> If you use the latter option, you must take reasonably prudent steps,
> when you begin distribution of Opaque copies in quantity, to ensure
> that this Transparent copy will remain thus accessible at the stated
> location until at least one year after the last time you distribute an
> Opaque copy (directly or through your agents or retailers) of that
> edition to the public.
>
> It is requested, but not required, that you contact the authors of the
> Document well before redistributing any large number of copies, to
> give them a chance to provide you with an updated version of the
> Document.
>
>
> 4. MODIFICATIONS
>
> You may copy and distribute a Modified Version of the Document under
> the conditions of sections 2 and 3 above, provided that you release
> the Modified Version under precisely this License, with the Modified
> Version filling the role of the Document, thus licensing distribution
> and modification of the Modified Version to whoever possesses a copy
> of it. In addition, you must do these things in the Modified Version:
>
> A. Use in the Title Page (and on the covers, if any) a title distinct
> from that of the Document, and from those of previous versions
> (which should, if there were any, be listed in the History section
> of the Document). You may use the same title as a previous version
> if the original publisher of that version gives permission.
> B. List on the Title Page, as authors, one or more persons or entities
> responsible for authorship of the modifications in the Modified
> Version, together with at least five of the principal authors of the
> Document (all of its principal authors, if it has fewer than five),
> unless they release you from this requirement.
> C. State on the Title page the name of the publisher of the
> Modified Version, as the publisher.
> D. Preserve all the copyright notices of the Document.
> E. Add an appropriate copyright notice for your modifications
> adjacent to the other copyright notices.
> F. Include, immediately after the copyright notices, a license notice
> giving the public permission to use the Modified Version under the
> terms of this License, in the form shown in the Addendum below.
> G. Preserve in that license notice the full lists of Invariant Sections
> and required Cover Texts given in the Document's license notice.
> H. Include an unaltered copy of this License.
> I. Preserve the section Entitled "History", Preserve its Title, and add
> to it an item stating at least the title, year, new authors, and
> publisher of the Modified Version as given on the Title Page. If
> there is no section Entitled "History" in the Document, create one
> stating the title, year, authors, and publisher of the Document as
> given on its Title Page, then add an item describing the Modified
> Version as stated in the previous sentence.
> J. Preserve the network location, if any, given in the Document for
> public access to a Transparent copy of the Document, and likewise
> the network locations given in the Document for previous versions
> it was based on. These may be placed in the "History" section.
> You may omit a network location for a work that was published at
> least four years before the Document itself, or if the original
> publisher of the version it refers to gives permission.
> K. For any section Entitled "Acknowledgements" or "Dedications",
> Preserve the Title of the section, and preserve in the section all
> the substance and tone of each of the contributor acknowledgements
> and/or dedications given therein.
> L. Preserve all the Invariant Sections of the Document,
> unaltered in their text and in their titles. Section numbers
> or the equivalent are not considered part of the section titles.
> M. Delete any section Entitled "Endorsements". Such a section
> may not be included in the Modified Version.
> N. Do not retitle any existing section to be Entitled "Endorsements"
> or to conflict in title with any Invariant Section.
> O. Preserve any Warranty Disclaimers.
>
> If the Modified Version includes new front-matter sections or
> appendices that qualify as Secondary Sections and contain no material
> copied from the Document, you may at your option designate some or all
> of these sections as invariant. To do this, add their titles to the
> list of Invariant Sections in the Modified Version's license notice.
> These titles must be distinct from any other section titles.
>
> You may add a section Entitled "Endorsements", provided it contains
> nothing but endorsements of your Modified Version by various
> parties--for example, statements of peer review or that the text has
> been approved by an organization as the authoritative definition of a
> standard.
>
> You may add a passage of up to five words as a Front-Cover Text, and a
> passage of up to 25 words as a Back-Cover Text, to the end of the list
> of Cover Texts in the Modified Version. Only one passage of
> Front-Cover Text and one of Back-Cover Text may be added by (or
> through arrangements made by) any one entity. If the Document already
> includes a cover text for the same cover, previously added by you or
> by arrangement made by the same entity you are acting on behalf of,
> you may not add another; but you may replace the old one, on explicit
> permission from the previous publisher that added the old one.
>
> The author(s) and publisher(s) of the Document do not by this License
> give permission to use their names for publicity for or to assert or
> imply endorsement of any Modified Version.
>
>
> 5. COMBINING DOCUMENTS
>
> You may combine the Document with other documents released under this
> License, under the terms defined in section 4 above for modified
> versions, provided that you include in the combination all of the
> Invariant Sections of all of the original documents, unmodified, and
> list them all as Invariant Sections of your combined work in its
> license notice, and that you preserve all their Warranty Disclaimers.
>
> The combined work need only contain one copy of this License, and
> multiple identical Invariant Sections may be replaced with a single
> copy. If there are multiple Invariant Sections with the same name but
> different contents, make the title of each such section unique by
> adding at the end of it, in parentheses, the name of the original
> author or publisher of that section if known, or else a unique number.
> Make the same adjustment to the section titles in the list of
> Invariant Sections in the license notice of the combined work.
>
> In the combination, you must combine any sections Entitled "History"
> in the various original documents, forming one section Entitled
> "History"; likewise combine any sections Entitled "Acknowledgements",
> and any sections Entitled "Dedications". You must delete all sections
> Entitled "Endorsements".
>
>
> 6. COLLECTIONS OF DOCUMENTS
>
> You may make a collection consisting of the Document and other
> documents released under this License, and replace the individual
> copies of this License in the various documents with a single copy
> that is included in the collection, provided that you follow the rules
> of this License for verbatim copying of each of the documents in all
> other respects.
>
> You may extract a single document from such a collection, and
> distribute it individually under this License, provided you insert a
> copy of this License into the extracted document, and follow this
> License in all other respects regarding verbatim copying of that
> document.
>
>
> 7. AGGREGATION WITH INDEPENDENT WORKS
>
> A compilation of the Document or its derivatives with other separate
> and independent documents or works, in or on a volume of a storage or
> distribution medium, is called an "aggregate" if the copyright
> resulting from the compilation is not used to limit the legal rights
> of the compilation's users beyond what the individual works permit.
> When the Document is included in an aggregate, this License does not
> apply to the other works in the aggregate which are not themselves
> derivative works of the Document.
>
> If the Cover Text requirement of section 3 is applicable to these
> copies of the Document, then if the Document is less than one half of
> the entire aggregate, the Document's Cover Texts may be placed on
> covers that bracket the Document within the aggregate, or the
> electronic equivalent of covers if the Document is in electronic form.
> Otherwise they must appear on printed covers that bracket the whole
> aggregate.
>
>
> 8. TRANSLATION
>
> Translation is considered a kind of modification, so you may
> distribute translations of the Document under the terms of section 4.
> Replacing Invariant Sections with translations requires special
> permission from their copyright holders, but you may include
> translations of some or all Invariant Sections in addition to the
> original versions of these Invariant Sections. You may include a
> translation of this License, and all the license notices in the
> Document, and any Warranty Disclaimers, provided that you also include
> the original English version of this License and the original versions
> of those notices and disclaimers. In case of a disagreement between
> the translation and the original version of this License or a notice
> or disclaimer, the original version will prevail.
>
> If a section in the Document is Entitled "Acknowledgements",
> "Dedications", or "History", the requirement (section 4) to Preserve
> its Title (section 1) will typically require changing the actual
> title.
>
>
> 9. TERMINATION
>
> You may not copy, modify, sublicense, or distribute the Document
> except as expressly provided under this License. Any attempt
> otherwise to copy, modify, sublicense, or distribute it is void, and
> will automatically terminate your rights under this License.
>
> However, if you cease all violation of this License, then your license
> from a particular copyright holder is reinstated (a) provisionally,
> unless and until the copyright holder explicitly and finally
> terminates your license, and (b) permanently, if the copyright holder
> fails to notify you of the violation by some reasonable means prior to
> 60 days after the cessation.
>
> Moreover, your license from a particular copyright holder is
> reinstated permanently if the copyright holder notifies you of the
> violation by some reasonable means, this is the first time you have
> received notice of violation of this License (for any work) from that
> copyright holder, and you cure the violation prior to 30 days after
> your receipt of the notice.
>
> Termination of your rights under this section does not terminate the
> licenses of parties who have received copies or rights from you under
> this License. If your rights have been terminated and not permanently
> reinstated, receipt of a copy of some or all of the same material does
> not give you any rights to use it.
>
>
> 10. FUTURE REVISIONS OF THIS LICENSE
>
> The Free Software Foundation may publish new, revised versions of the
> GNU Free Documentation License from time to time. Such new versions
> will be similar in spirit to the present version, but may differ in
> detail to address new problems or concerns. See
> http://www.gnu.org/copyleft/.
>
> Each version of the License is given a distinguishing version number.
> If the Document specifies that a particular numbered version of this
> License "or any later version" applies to it, you have the option of
> following the terms and conditions either of that specified version or
> of any later version that has been published (not as a draft) by the
> Free Software Foundation. If the Document does not specify a version
> number of this License, you may choose any version ever published (not
> as a draft) by the Free Software Foundation. If the Document
> specifies that a proxy can decide which future versions of this
> License can be used, that proxy's public statement of acceptance of a
> version permanently authorizes you to choose that version for the
> Document.
>
> 11. RELICENSING
>
> "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
> World Wide Web server that publishes copyrightable works and also
> provides prominent facilities for anybody to edit those works. A
> public wiki that anybody can edit is an example of such a server. A
> "Massive Multiauthor Collaboration" (or "MMC") contained in the site
> means any set of copyrightable works thus published on the MMC site.
>
> "CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0
> license published by Creative Commons Corporation, a not-for-profit
> corporation with a principal place of business in San Francisco,
> California, as well as future copyleft versions of that license
> published by that same organization.
>
> "Incorporate" means to publish or republish a Document, in whole or in
> part, as part of another Document.
>
> An MMC is "eligible for relicensing" if it is licensed under this
> License, and if all works that were first published under this License
> somewhere other than this MMC, and subsequently incorporated in whole or
> in part into the MMC, (1) had no cover texts or invariant sections, and
> (2) were thus incorporated prior to November 1, 2008.
>
> The operator of an MMC Site may republish an MMC contained in the site
> under CC-BY-SA on the same site at any time before August 1, 2009,
> provided the MMC is eligible for relicensing.
>
>
> ADDENDUM: How to use this License for your documents
>
> To use this License in a document you have written, include a copy of
> the License in the document and put the following copyright and
> license notices just after the title page:
>
> Copyright (c) YEAR YOUR NAME.
> Permission is granted to copy, distribute and/or modify this document
> under the terms of the GNU Free Documentation License, Version 1.3
> or any later version published by the Free Software Foundation;
> with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
> A copy of the license is included in the section entitled "GNU
> Free Documentation License".
>
> If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
> replace the "with...Texts." line with this:
>
> with the Invariant Sections being LIST THEIR TITLES, with the
> Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
>
> If you have Invariant Sections without Cover Texts, or some other
> combination of the three, merge those two alternatives to suit the
> situation.
>
> If your document contains nontrivial examples of program code, we
> recommend releasing these examples in parallel under your choice of
> free software license, such as the GNU General Public License,
> to permit their use in free software.
`usr/share/licenses/qt5-base/LICENSE.GPL2`:
> GNU GENERAL PUBLIC LICENSE
> Version 2, June 1991
>
> Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> Preamble
>
> The licenses for most software are designed to take away your
> freedom to share and change it. By contrast, the GNU General Public
> License is intended to guarantee your freedom to share and change free
> software--to make sure the software is free for all its users. This
> General Public License applies to most of the Free Software
> Foundation's software and to any other program whose authors commit to
> using it. (Some other Free Software Foundation software is covered by
> the GNU Lesser General Public License instead.) You can apply it to
> your programs, too.
>
> When we speak of free software, we are referring to freedom, not
> price. Our General Public Licenses are designed to make sure that you
> have the freedom to distribute copies of free software (and charge for
> this service if you wish), that you receive source code or can get it
> if you want it, that you can change the software or use pieces of it
> in new free programs; and that you know you can do these things.
>
> To protect your rights, we need to make restrictions that forbid
> anyone to deny you these rights or to ask you to surrender the rights.
> These restrictions translate to certain responsibilities for you if you
> distribute copies of the software, or if you modify it.
>
> For example, if you distribute copies of such a program, whether
> gratis or for a fee, you must give the recipients all the rights that
> you have. You must make sure that they, too, receive or can get the
> source code. And you must show them these terms so they know their
> rights.
>
> We protect your rights with two steps: (1) copyright the software, and
> (2) offer you this license which gives you legal permission to copy,
> distribute and/or modify the software.
>
> Also, for each author's protection and ours, we want to make certain
> that everyone understands that there is no warranty for this free
> software. If the software is modified by someone else and passed on, we
> want its recipients to know that what they have is not the original, so
> that any problems introduced by others will not reflect on the original
> authors' reputations.
>
> Finally, any free program is threatened constantly by software
> patents. We wish to avoid the danger that redistributors of a free
> program will individually obtain patent licenses, in effect making the
> program proprietary. To prevent this, we have made it clear that any
> patent must be licensed for everyone's free use or not licensed at all.
>
> The precise terms and conditions for copying, distribution and
> modification follow.
>
> GNU GENERAL PUBLIC LICENSE
> TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
>
> 0. This License applies to any program or other work which contains
> a notice placed by the copyright holder saying it may be distributed
> under the terms of this General Public License. The "Program", below,
> refers to any such program or work, and a "work based on the Program"
> means either the Program or any derivative work under copyright law:
> that is to say, a work containing the Program or a portion of it,
> either verbatim or with modifications and/or translated into another
> language. (Hereinafter, translation is included without limitation in
> the term "modification".) Each licensee is addressed as "you".
>
> Activities other than copying, distribution and modification are not
> covered by this License; they are outside its scope. The act of
> running the Program is not restricted, and the output from the Program
> is covered only if its contents constitute a work based on the
> Program (independent of having been made by running the Program).
> Whether that is true depends on what the Program does.
>
> 1. You may copy and distribute verbatim copies of the Program's
> source code as you receive it, in any medium, provided that you
> conspicuously and appropriately publish on each copy an appropriate
> copyright notice and disclaimer of warranty; keep intact all the
> notices that refer to this License and to the absence of any warranty;
> and give any other recipients of the Program a copy of this License
> along with the Program.
>
> You may charge a fee for the physical act of transferring a copy, and
> you may at your option offer warranty protection in exchange for a fee.
>
> 2. You may modify your copy or copies of the Program or any portion
> of it, thus forming a work based on the Program, and copy and
> distribute such modifications or work under the terms of Section 1
> above, provided that you also meet all of these conditions:
>
> a) You must cause the modified files to carry prominent notices
> stating that you changed the files and the date of any change.
>
> b) You must cause any work that you distribute or publish, that in
> whole or in part contains or is derived from the Program or any
> part thereof, to be licensed as a whole at no charge to all third
> parties under the terms of this License.
>
> c) If the modified program normally reads commands interactively
> when run, you must cause it, when started running for such
> interactive use in the most ordinary way, to print or display an
> announcement including an appropriate copyright notice and a
> notice that there is no warranty (or else, saying that you provide
> a warranty) and that users may redistribute the program under
> these conditions, and telling the user how to view a copy of this
> License. (Exception: if the Program itself is interactive but
> does not normally print such an announcement, your work based on
> the Program is not required to print an announcement.)
>
> These requirements apply to the modified work as a whole. If
> identifiable sections of that work are not derived from the Program,
> and can be reasonably considered independent and separate works in
> themselves, then this License, and its terms, do not apply to those
> sections when you distribute them as separate works. But when you
> distribute the same sections as part of a whole which is a work based
> on the Program, the distribution of the whole must be on the terms of
> this License, whose permissions for other licensees extend to the
> entire whole, and thus to each and every part regardless of who wrote it.
>
> Thus, it is not the intent of this section to claim rights or contest
> your rights to work written entirely by you; rather, the intent is to
> exercise the right to control the distribution of derivative or
> collective works based on the Program.
>
> In addition, mere aggregation of another work not based on the Program
> with the Program (or with a work based on the Program) on a volume of
> a storage or distribution medium does not bring the other work under
> the scope of this License.
>
> 3. You may copy and distribute the Program (or a work based on it,
> under Section 2) in object code or executable form under the terms of
> Sections 1 and 2 above provided that you also do one of the following:
>
> a) Accompany it with the complete corresponding machine-readable
> source code, which must be distributed under the terms of Sections
> 1 and 2 above on a medium customarily used for software interchange; or,
>
> b) Accompany it with a written offer, valid for at least three
> years, to give any third party, for a charge no more than your
> cost of physically performing source distribution, a complete
> machine-readable copy of the corresponding source code, to be
> distributed under the terms of Sections 1 and 2 above on a medium
> customarily used for software interchange; or,
>
> c) Accompany it with the information you received as to the offer
> to distribute corresponding source code. (This alternative is
> allowed only for noncommercial distribution and only if you
> received the program in object code or executable form with such
> an offer, in accord with Subsection b above.)
>
> The source code for a work means the preferred form of the work for
> making modifications to it. For an executable work, complete source
> code means all the source code for all modules it contains, plus any
> associated interface definition files, plus the scripts used to
> control compilation and installation of the executable. However, as a
> special exception, the source code distributed need not include
> anything that is normally distributed (in either source or binary
> form) with the major components (compiler, kernel, and so on) of the
> operating system on which the executable runs, unless that component
> itself accompanies the executable.
>
> If distribution of executable or object code is made by offering
> access to copy from a designated place, then offering equivalent
> access to copy the source code from the same place counts as
> distribution of the source code, even though third parties are not
> compelled to copy the source along with the object code.
>
> 4. You may not copy, modify, sublicense, or distribute the Program
> except as expressly provided under this License. Any attempt
> otherwise to copy, modify, sublicense or distribute the Program is
> void, and will automatically terminate your rights under this License.
> However, parties who have received copies, or rights, from you under
> this License will not have their licenses terminated so long as such
> parties remain in full compliance.
>
> 5. You are not required to accept this License, since you have not
> signed it. However, nothing else grants you permission to modify or
> distribute the Program or its derivative works. These actions are
> prohibited by law if you do not accept this License. Therefore, by
> modifying or distributing the Program (or any work based on the
> Program), you indicate your acceptance of this License to do so, and
> all its terms and conditions for copying, distributing or modifying
> the Program or works based on it.
>
> 6. Each time you redistribute the Program (or any work based on the
> Program), the recipient automatically receives a license from the
> original licensor to copy, distribute or modify the Program subject to
> these terms and conditions. You may not impose any further
> restrictions on the recipients' exercise of the rights granted herein.
> You are not responsible for enforcing compliance by third parties to
> this License.
>
> 7. If, as a consequence of a court judgment or allegation of patent
> infringement or for any other reason (not limited to patent issues),
> conditions are imposed on you (whether by court order, agreement or
> otherwise) that contradict the conditions of this License, they do not
> excuse you from the conditions of this License. If you cannot
> distribute so as to satisfy simultaneously your obligations under this
> License and any other pertinent obligations, then as a consequence you
> may not distribute the Program at all. For example, if a patent
> license would not permit royalty-free redistribution of the Program by
> all those who receive copies directly or indirectly through you, then
> the only way you could satisfy both it and this License would be to
> refrain entirely from distribution of the Program.
>
> If any portion of this section is held invalid or unenforceable under
> any particular circumstance, the balance of the section is intended to
> apply and the section as a whole is intended to apply in other
> circumstances.
>
> It is not the purpose of this section to induce you to infringe any
> patents or other property right claims or to contest validity of any
> such claims; this section has the sole purpose of protecting the
> integrity of the free software distribution system, which is
> implemented by public license practices. Many people have made
> generous contributions to the wide range of software distributed
> through that system in reliance on consistent application of that
> system; it is up to the author/donor to decide if he or she is willing
> to distribute software through any other system and a licensee cannot
> impose that choice.
>
> This section is intended to make thoroughly clear what is believed to
> be a consequence of the rest of this License.
>
> 8. If the distribution and/or use of the Program is restricted in
> certain countries either by patents or by copyrighted interfaces, the
> original copyright holder who places the Program under this License
> may add an explicit geographical distribution limitation excluding
> those countries, so that distribution is permitted only in or among
> countries not thus excluded. In such case, this License incorporates
> the limitation as if written in the body of this License.
>
> 9. The Free Software Foundation may publish revised and/or new versions
> of the General Public License from time to time. Such new versions will
> be similar in spirit to the present version, but may differ in detail to
> address new problems or concerns.
>
> Each version is given a distinguishing version number. If the Program
> specifies a version number of this License which applies to it and "any
> later version", you have the option of following the terms and conditions
> either of that version or of any later version published by the Free
> Software Foundation. If the Program does not specify a version number of
> this License, you may choose any version ever published by the Free Software
> Foundation.
>
> 10. If you wish to incorporate parts of the Program into other free
> programs whose distribution conditions are different, write to the author
> to ask for permission. For software which is copyrighted by the Free
> Software Foundation, write to the Free Software Foundation; we sometimes
> make exceptions for this. Our decision will be guided by the two goals
> of preserving the free status of all derivatives of our free software and
> of promoting the sharing and reuse of software generally.
>
> NO WARRANTY
>
> 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
> FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
> OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
> PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
> OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
> TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
> PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
> REPAIR OR CORRECTION.
>
> 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
> WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
> REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
> INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
> OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
> TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
> YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
> PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
> POSSIBILITY OF SUCH DAMAGES.
>
> END OF TERMS AND CONDITIONS
>
> How to Apply These Terms to Your New Programs
>
> If you develop a new program, and you want it to be of the greatest
> possible use to the public, the best way to achieve this is to make it
> free software which everyone can redistribute and change under these terms.
>
> To do so, attach the following notices to the program. It is safest
> to attach them to the start of each source file to most effectively
> convey the exclusion of warranty; and each file should have at least
> the "copyright" line and a pointer to where the full notice is found.
>
> <one line to give the program's name and a brief idea of what it does.>
> Copyright (C) <year> <name of author>
>
> This program is free software; you can redistribute it and/or modify
> it under the terms of the GNU General Public License 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.,
> 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
>
> Also add information on how to contact you by electronic and paper mail.
>
> If the program is interactive, make it output a short notice like this
> when it starts in an interactive mode:
>
> Gnomovision version 69, Copyright (C) year name of author
> Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
> This is free software, and you are welcome to redistribute it
> under certain conditions; type `show c' for details.
>
> The hypothetical commands `show w' and `show c' should show the appropriate
> parts of the General Public License. Of course, the commands you use may
> be called something other than `show w' and `show c'; they could even be
> mouse-clicks or menu items--whatever suits your program.
>
> You should also get your employer (if you work as a programmer) or your
> school, if any, to sign a "copyright disclaimer" for the program, if
> necessary. Here is a sample; alter the names:
>
> Yoyodyne, Inc., hereby disclaims all copyright interest in the program
> `Gnomovision' (which makes passes at compilers) written by James Hacker.
>
> <signature of Ty Coon>, 1 April 1989
> Ty Coon, President of Vice
>
> This General Public License does not permit incorporating your program into
> proprietary programs. If your program is a subroutine library, you may
> consider it more useful to permit linking proprietary applications with the
> library. If this is what you want to do, use the GNU Lesser General
> Public License instead of this License.
`usr/share/licenses/qt5-base/LICENSE.GPL3`:
> GNU GENERAL PUBLIC LICENSE
> Version 3, 29 June 2007
>
> Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> Preamble
>
> The GNU General Public License is a free, copyleft license for
> software and other kinds of works.
>
> The licenses for most software and other practical works are designed
> to take away your freedom to share and change the works. By contrast,
> the GNU General Public License is intended to guarantee your freedom to
> share and change all versions of a program--to make sure it remains free
> software for all its users. We, the Free Software Foundation, use the
> GNU General Public License for most of our software; it applies also to
> any other work released this way by its authors. You can apply it to
> your programs, too.
>
> When we speak of free software, we are referring to freedom, not
> price. Our General Public Licenses are designed to make sure that you
> have the freedom to distribute copies of free software (and charge for
> them if you wish), that you receive source code or can get it if you
> want it, that you can change the software or use pieces of it in new
> free programs, and that you know you can do these things.
>
> To protect your rights, we need to prevent others from denying you
> these rights or asking you to surrender the rights. Therefore, you have
> certain responsibilities if you distribute copies of the software, or if
> you modify it: responsibilities to respect the freedom of others.
>
> For example, if you distribute copies of such a program, whether
> gratis or for a fee, you must pass on to the recipients the same
> freedoms that you received. You must make sure that they, too, receive
> or can get the source code. And you must show them these terms so they
> know their rights.
>
> Developers that use the GNU GPL protect your rights with two steps:
> (1) assert copyright on the software, and (2) offer you this License
> giving you legal permission to copy, distribute and/or modify it.
>
> For the developers' and authors' protection, the GPL clearly explains
> that there is no warranty for this free software. For both users' and
> authors' sake, the GPL requires that modified versions be marked as
> changed, so that their problems will not be attributed erroneously to
> authors of previous versions.
>
> Some devices are designed to deny users access to install or run
> modified versions of the software inside them, although the manufacturer
> can do so. This is fundamentally incompatible with the aim of
> protecting users' freedom to change the software. The systematic
> pattern of such abuse occurs in the area of products for individuals to
> use, which is precisely where it is most unacceptable. Therefore, we
> have designed this version of the GPL to prohibit the practice for those
> products. If such problems arise substantially in other domains, we
> stand ready to extend this provision to those domains in future versions
> of the GPL, as needed to protect the freedom of users.
>
> Finally, every program is threatened constantly by software patents.
> States should not allow patents to restrict development and use of
> software on general-purpose computers, but in those that do, we wish to
> avoid the special danger that patents applied to a free program could
> make it effectively proprietary. To prevent this, the GPL assures that
> patents cannot be used to render the program non-free.
>
> The precise terms and conditions for copying, distribution and
> modification follow.
>
> TERMS AND CONDITIONS
>
> 0. Definitions.
>
> "This License" refers to version 3 of the GNU General Public License.
>
> "Copyright" also means copyright-like laws that apply to other kinds of
> works, such as semiconductor masks.
>
> "The Program" refers to any copyrightable work licensed under this
> License. Each licensee is addressed as "you". "Licensees" and
> "recipients" may be individuals or organizations.
>
> To "modify" a work means to copy from or adapt all or part of the work
> in a fashion requiring copyright permission, other than the making of an
> exact copy. The resulting work is called a "modified version" of the
> earlier work or a work "based on" the earlier work.
>
> A "covered work" means either the unmodified Program or a work based
> on the Program.
>
> To "propagate" a work means to do anything with it that, without
> permission, would make you directly or secondarily liable for
> infringement under applicable copyright law, except executing it on a
> computer or modifying a private copy. Propagation includes copying,
> distribution (with or without modification), making available to the
> public, and in some countries other activities as well.
>
> To "convey" a work means any kind of propagation that enables other
> parties to make or receive copies. Mere interaction with a user through
> a computer network, with no transfer of a copy, is not conveying.
>
> An interactive user interface displays "Appropriate Legal Notices"
> to the extent that it includes a convenient and prominently visible
> feature that (1) displays an appropriate copyright notice, and (2)
> tells the user that there is no warranty for the work (except to the
> extent that warranties are provided), that licensees may convey the
> work under this License, and how to view a copy of this License. If
> the interface presents a list of user commands or options, such as a
> menu, a prominent item in the list meets this criterion.
>
> 1. Source Code.
>
> The "source code" for a work means the preferred form of the work
> for making modifications to it. "Object code" means any non-source
> form of a work.
>
> A "Standard Interface" means an interface that either is an official
> standard defined by a recognized standards body, or, in the case of
> interfaces specified for a particular programming language, one that
> is widely used among developers working in that language.
>
> The "System Libraries" of an executable work include anything, other
> than the work as a whole, that (a) is included in the normal form of
> packaging a Major Component, but which is not part of that Major
> Component, and (b) serves only to enable use of the work with that
> Major Component, or to implement a Standard Interface for which an
> implementation is available to the public in source code form. A
> "Major Component", in this context, means a major essential component
> (kernel, window system, and so on) of the specific operating system
> (if any) on which the executable work runs, or a compiler used to
> produce the work, or an object code interpreter used to run it.
>
> The "Corresponding Source" for a work in object code form means all
> the source code needed to generate, install, and (for an executable
> work) run the object code and to modify the work, including scripts to
> control those activities. However, it does not include the work's
> System Libraries, or general-purpose tools or generally available free
> programs which are used unmodified in performing those activities but
> which are not part of the work. For example, Corresponding Source
> includes interface definition files associated with source files for
> the work, and the source code for shared libraries and dynamically
> linked subprograms that the work is specifically designed to require,
> such as by intimate data communication or control flow between those
> subprograms and other parts of the work.
>
> The Corresponding Source need not include anything that users
> can regenerate automatically from other parts of the Corresponding
> Source.
>
> The Corresponding Source for a work in source code form is that
> same work.
>
> 2. Basic Permissions.
>
> All rights granted under this License are granted for the term of
> copyright on the Program, and are irrevocable provided the stated
> conditions are met. This License explicitly affirms your unlimited
> permission to run the unmodified Program. The output from running a
> covered work is covered by this License only if the output, given its
> content, constitutes a covered work. This License acknowledges your
> rights of fair use or other equivalent, as provided by copyright law.
>
> You may make, run and propagate covered works that you do not
> convey, without conditions so long as your license otherwise remains
> in force. You may convey covered works to others for the sole purpose
> of having them make modifications exclusively for you, or provide you
> with facilities for running those works, provided that you comply with
> the terms of this License in conveying all material for which you do
> not control copyright. Those thus making or running the covered works
> for you must do so exclusively on your behalf, under your direction
> and control, on terms that prohibit them from making any copies of
> your copyrighted material outside their relationship with you.
>
> Conveying under any other circumstances is permitted solely under
> the conditions stated below. Sublicensing is not allowed; section 10
> makes it unnecessary.
>
> 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
>
> No covered work shall be deemed part of an effective technological
> measure under any applicable law fulfilling obligations under article
> 11 of the WIPO copyright treaty adopted on 20 December 1996, or
> similar laws prohibiting or restricting circumvention of such
> measures.
>
> When you convey a covered work, you waive any legal power to forbid
> circumvention of technological measures to the extent such circumvention
> is effected by exercising rights under this License with respect to
> the covered work, and you disclaim any intention to limit operation or
> modification of the work as a means of enforcing, against the work's
> users, your or third parties' legal rights to forbid circumvention of
> technological measures.
>
> 4. Conveying Verbatim Copies.
>
> You may convey verbatim copies of the Program's source code as you
> receive it, in any medium, provided that you conspicuously and
> appropriately publish on each copy an appropriate copyright notice;
> keep intact all notices stating that this License and any
> non-permissive terms added in accord with section 7 apply to the code;
> keep intact all notices of the absence of any warranty; and give all
> recipients a copy of this License along with the Program.
>
> You may charge any price or no price for each copy that you convey,
> and you may offer support or warranty protection for a fee.
>
> 5. Conveying Modified Source Versions.
>
> You may convey a work based on the Program, or the modifications to
> produce it from the Program, in the form of source code under the
> terms of section 4, provided that you also meet all of these conditions:
>
> a) The work must carry prominent notices stating that you modified
> it, and giving a relevant date.
>
> b) The work must carry prominent notices stating that it is
> released under this License and any conditions added under section
> 7. This requirement modifies the requirement in section 4 to
> "keep intact all notices".
>
> c) You must license the entire work, as a whole, under this
> License to anyone who comes into possession of a copy. This
> License will therefore apply, along with any applicable section 7
> additional terms, to the whole of the work, and all its parts,
> regardless of how they are packaged. This License gives no
> permission to license the work in any other way, but it does not
> invalidate such permission if you have separately received it.
>
> d) If the work has interactive user interfaces, each must display
> Appropriate Legal Notices; however, if the Program has interactive
> interfaces that do not display Appropriate Legal Notices, your
> work need not make them do so.
>
> A compilation of a covered work with other separate and independent
> works, which are not by their nature extensions of the covered work,
> and which are not combined with it such as to form a larger program,
> in or on a volume of a storage or distribution medium, is called an
> "aggregate" if the compilation and its resulting copyright are not
> used to limit the access or legal rights of the compilation's users
> beyond what the individual works permit. Inclusion of a covered work
> in an aggregate does not cause this License to apply to the other
> parts of the aggregate.
>
> 6. Conveying Non-Source Forms.
>
> You may convey a covered work in object code form under the terms
> of sections 4 and 5, provided that you also convey the
> machine-readable Corresponding Source under the terms of this License,
> in one of these ways:
>
> a) Convey the object code in, or embodied in, a physical product
> (including a physical distribution medium), accompanied by the
> Corresponding Source fixed on a durable physical medium
> customarily used for software interchange.
>
> b) Convey the object code in, or embodied in, a physical product
> (including a physical distribution medium), accompanied by a
> written offer, valid for at least three years and valid for as
> long as you offer spare parts or customer support for that product
> model, to give anyone who possesses the object code either (1) a
> copy of the Corresponding Source for all the software in the
> product that is covered by this License, on a durable physical
> medium customarily used for software interchange, for a price no
> more than your reasonable cost of physically performing this
> conveying of source, or (2) access to copy the
> Corresponding Source from a network server at no charge.
>
> c) Convey individual copies of the object code with a copy of the
> written offer to provide the Corresponding Source. This
> alternative is allowed only occasionally and noncommercially, and
> only if you received the object code with such an offer, in accord
> with subsection 6b.
>
> d) Convey the object code by offering access from a designated
> place (gratis or for a charge), and offer equivalent access to the
> Corresponding Source in the same way through the same place at no
> further charge. You need not require recipients to copy the
> Corresponding Source along with the object code. If the place to
> copy the object code is a network server, the Corresponding Source
> may be on a different server (operated by you or a third party)
> that supports equivalent copying facilities, provided you maintain
> clear directions next to the object code saying where to find the
> Corresponding Source. Regardless of what server hosts the
> Corresponding Source, you remain obligated to ensure that it is
> available for as long as needed to satisfy these requirements.
>
> e) Convey the object code using peer-to-peer transmission, provided
> you inform other peers where the object code and Corresponding
> Source of the work are being offered to the general public at no
> charge under subsection 6d.
>
> A separable portion of the object code, whose source code is excluded
> from the Corresponding Source as a System Library, need not be
> included in conveying the object code work.
>
> A "User Product" is either (1) a "consumer product", which means any
> tangible personal property which is normally used for personal, family,
> or household purposes, or (2) anything designed or sold for incorporation
> into a dwelling. In determining whether a product is a consumer product,
> doubtful cases shall be resolved in favor of coverage. For a particular
> product received by a particular user, "normally used" refers to a
> typical or common use of that class of product, regardless of the status
> of the particular user or of the way in which the particular user
> actually uses, or expects or is expected to use, the product. A product
> is a consumer product regardless of whether the product has substantial
> commercial, industrial or non-consumer uses, unless such uses represent
> the only significant mode of use of the product.
>
> "Installation Information" for a User Product means any methods,
> procedures, authorization keys, or other information required to install
> and execute modified versions of a covered work in that User Product from
> a modified version of its Corresponding Source. The information must
> suffice to ensure that the continued functioning of the modified object
> code is in no case prevented or interfered with solely because
> modification has been made.
>
> If you convey an object code work under this section in, or with, or
> specifically for use in, a User Product, and the conveying occurs as
> part of a transaction in which the right of possession and use of the
> User Product is transferred to the recipient in perpetuity or for a
> fixed term (regardless of how the transaction is characterized), the
> Corresponding Source conveyed under this section must be accompanied
> by the Installation Information. But this requirement does not apply
> if neither you nor any third party retains the ability to install
> modified object code on the User Product (for example, the work has
> been installed in ROM).
>
> The requirement to provide Installation Information does not include a
> requirement to continue to provide support service, warranty, or updates
> for a work that has been modified or installed by the recipient, or for
> the User Product in which it has been modified or installed. Access to a
> network may be denied when the modification itself materially and
> adversely affects the operation of the network or violates the rules and
> protocols for communication across the network.
>
> Corresponding Source conveyed, and Installation Information provided,
> in accord with this section must be in a format that is publicly
> documented (and with an implementation available to the public in
> source code form), and must require no special password or key for
> unpacking, reading or copying.
>
> 7. Additional Terms.
>
> "Additional permissions" are terms that supplement the terms of this
> License by making exceptions from one or more of its conditions.
> Additional permissions that are applicable to the entire Program shall
> be treated as though they were included in this License, to the extent
> that they are valid under applicable law. If additional permissions
> apply only to part of the Program, that part may be used separately
> under those permissions, but the entire Program remains governed by
> this License without regard to the additional permissions.
>
> When you convey a copy of a covered work, you may at your option
> remove any additional permissions from that copy, or from any part of
> it. (Additional permissions may be written to require their own
> removal in certain cases when you modify the work.) You may place
> additional permissions on material, added by you to a covered work,
> for which you have or can give appropriate copyright permission.
>
> Notwithstanding any other provision of this License, for material you
> add to a covered work, you may (if authorized by the copyright holders of
> that material) supplement the terms of this License with terms:
>
> a) Disclaiming warranty or limiting liability differently from the
> terms of sections 15 and 16 of this License; or
>
> b) Requiring preservation of specified reasonable legal notices or
> author attributions in that material or in the Appropriate Legal
> Notices displayed by works containing it; or
>
> c) Prohibiting misrepresentation of the origin of that material, or
> requiring that modified versions of such material be marked in
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>
> d) Limiting the use for publicity purposes of names of licensors or
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>
> e) Declining to grant rights under trademark law for use of some
> trade names, trademarks, or service marks; or
>
> f) Requiring indemnification of licensors and authors of that
> material by anyone who conveys the material (or modified versions of
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> those licensors and authors.
>
> All other non-permissive additional terms are considered "further
> restrictions" within the meaning of section 10. If the Program as you
> received it, or any part of it, contains a notice stating that it is
> governed by this License along with a term that is a further
> restriction, you may remove that term. If a license document contains
> a further restriction but permits relicensing or conveying under this
> License, you may add to a covered work material governed by the terms
> of that license document, provided that the further restriction does
> not survive such relicensing or conveying.
>
> If you add terms to a covered work in accord with this section, you
> must place, in the relevant source files, a statement of the
> additional terms that apply to those files, or a notice indicating
> where to find the applicable terms.
>
> Additional terms, permissive or non-permissive, may be stated in the
> form of a separately written license, or stated as exceptions;
> the above requirements apply either way.
>
> 8. Termination.
>
> You may not propagate or modify a covered work except as expressly
> provided under this License. Any attempt otherwise to propagate or
> modify it is void, and will automatically terminate your rights under
> this License (including any patent licenses granted under the third
> paragraph of section 11).
>
> However, if you cease all violation of this License, then your
> license from a particular copyright holder is reinstated (a)
> provisionally, unless and until the copyright holder explicitly and
> finally terminates your license, and (b) permanently, if the copyright
> holder fails to notify you of the violation by some reasonable means
> prior to 60 days after the cessation.
>
> Moreover, your license from a particular copyright holder is
> reinstated permanently if the copyright holder notifies you of the
> violation by some reasonable means, this is the first time you have
> received notice of violation of this License (for any work) from that
> copyright holder, and you cure the violation prior to 30 days after
> your receipt of the notice.
>
> Termination of your rights under this section does not terminate the
> licenses of parties who have received copies or rights from you under
> this License. If your rights have been terminated and not permanently
> reinstated, you do not qualify to receive new licenses for the same
> material under section 10.
>
> 9. Acceptance Not Required for Having Copies.
>
> You are not required to accept this License in order to receive or
> run a copy of the Program. Ancillary propagation of a covered work
> occurring solely as a consequence of using peer-to-peer transmission
> to receive a copy likewise does not require acceptance. However,
> nothing other than this License grants you permission to propagate or
> modify any covered work. These actions infringe copyright if you do
> not accept this License. Therefore, by modifying or propagating a
> covered work, you indicate your acceptance of this License to do so.
>
> 10. Automatic Licensing of Downstream Recipients.
>
> Each time you convey a covered work, the recipient automatically
> receives a license from the original licensors, to run, modify and
> propagate that work, subject to this License. You are not responsible
> for enforcing compliance by third parties with this License.
>
> An "entity transaction" is a transaction transferring control of an
> organization, or substantially all assets of one, or subdividing an
> organization, or merging organizations. If propagation of a covered
> work results from an entity transaction, each party to that
> transaction who receives a copy of the work also receives whatever
> licenses to the work the party's predecessor in interest had or could
> give under the previous paragraph, plus a right to possession of the
> Corresponding Source of the work from the predecessor in interest, if
> the predecessor has it or can get it with reasonable efforts.
>
> You may not impose any further restrictions on the exercise of the
> rights granted or affirmed under this License. For example, you may
> not impose a license fee, royalty, or other charge for exercise of
> rights granted under this License, and you may not initiate litigation
> (including a cross-claim or counterclaim in a lawsuit) alleging that
> any patent claim is infringed by making, using, selling, offering for
> sale, or importing the Program or any portion of it.
>
> 11. Patents.
>
> A "contributor" is a copyright holder who authorizes use under this
> License of the Program or a work on which the Program is based. The
> work thus licensed is called the contributor's "contributor version".
>
> A contributor's "essential patent claims" are all patent claims
> owned or controlled by the contributor, whether already acquired or
> hereafter acquired, that would be infringed by some manner, permitted
> by this License, of making, using, or selling its contributor version,
> but do not include claims that would be infringed only as a
> consequence of further modification of the contributor version. For
> purposes of this definition, "control" includes the right to grant
> patent sublicenses in a manner consistent with the requirements of
> this License.
>
> Each contributor grants you a non-exclusive, worldwide, royalty-free
> patent license under the contributor's essential patent claims, to
> make, use, sell, offer for sale, import and otherwise run, modify and
> propagate the contents of its contributor version.
>
> In the following three paragraphs, a "patent license" is any express
> agreement or commitment, however denominated, not to enforce a patent
> (such as an express permission to practice a patent or covenant not to
> sue for patent infringement). To "grant" such a patent license to a
> party means to make such an agreement or commitment not to enforce a
> patent against the party.
>
> If you convey a covered work, knowingly relying on a patent license,
> and the Corresponding Source of the work is not available for anyone
> to copy, free of charge and under the terms of this License, through a
> publicly available network server or other readily accessible means,
> then you must either (1) cause the Corresponding Source to be so
> available, or (2) arrange to deprive yourself of the benefit of the
> patent license for this particular work, or (3) arrange, in a manner
> consistent with the requirements of this License, to extend the patent
> license to downstream recipients. "Knowingly relying" means you have
> actual knowledge that, but for the patent license, your conveying the
> covered work in a country, or your recipient's use of the covered work
> in a country, would infringe one or more identifiable patents in that
> country that you have reason to believe are valid.
>
> If, pursuant to or in connection with a single transaction or
> arrangement, you convey, or propagate by procuring conveyance of, a
> covered work, and grant a patent license to some of the parties
> receiving the covered work authorizing them to use, propagate, modify
> or convey a specific copy of the covered work, then the patent license
> you grant is automatically extended to all recipients of the covered
> work and works based on it.
>
> A patent license is "discriminatory" if it does not include within
> the scope of its coverage, prohibits the exercise of, or is
> conditioned on the non-exercise of one or more of the rights that are
> specifically granted under this License. You may not convey a covered
> work if you are a party to an arrangement with a third party that is
> in the business of distributing software, under which you make payment
> to the third party based on the extent of your activity of conveying
> the work, and under which the third party grants, to any of the
> parties who would receive the covered work from you, a discriminatory
> patent license (a) in connection with copies of the covered work
> conveyed by you (or copies made from those copies), or (b) primarily
> for and in connection with specific products or compilations that
> contain the covered work, unless you entered into that arrangement,
> or that patent license was granted, prior to 28 March 2007.
>
> Nothing in this License shall be construed as excluding or limiting
> any implied license or other defenses to infringement that may
> otherwise be available to you under applicable patent law.
>
> 12. No Surrender of Others' Freedom.
>
> If conditions are imposed on you (whether by court order, agreement or
> otherwise) that contradict the conditions of this License, they do not
> excuse you from the conditions of this License. If you cannot convey a
> covered work so as to satisfy simultaneously your obligations under this
> License and any other pertinent obligations, then as a consequence you may
> not convey it at all. For example, if you agree to terms that obligate you
> to collect a royalty for further conveying from those to whom you convey
> the Program, the only way you could satisfy both those terms and this
> License would be to refrain entirely from conveying the Program.
>
> 13. Use with the GNU Affero General Public License.
>
> Notwithstanding any other provision of this License, you have
> permission to link or combine any covered work with a work licensed
> under version 3 of the GNU Affero General Public License into a single
> combined work, and to convey the resulting work. The terms of this
> License will continue to apply to the part which is the covered work,
> but the special requirements of the GNU Affero General Public License,
> section 13, concerning interaction through a network will apply to the
> combination as such.
>
> 14. Revised Versions of this License.
>
> The Free Software Foundation may publish revised and/or new versions of
> the GNU General Public License from time to time. Such new versions will
> be similar in spirit to the present version, but may differ in detail to
> address new problems or concerns.
>
> Each version is given a distinguishing version number. If the
> Program specifies that a certain numbered version of the GNU General
> Public License "or any later version" applies to it, you have the
> option of following the terms and conditions either of that numbered
> version or of any later version published by the Free Software
> Foundation. If the Program does not specify a version number of the
> GNU General Public License, you may choose any version ever published
> by the Free Software Foundation.
>
> If the Program specifies that a proxy can decide which future
> versions of the GNU General Public License can be used, that proxy's
> public statement of acceptance of a version permanently authorizes you
> to choose that version for the Program.
>
> Later license versions may give you additional or different
> permissions. However, no additional obligations are imposed on any
> author or copyright holder as a result of your choosing to follow a
> later version.
>
> 15. Disclaimer of Warranty.
>
> THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
> APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
> HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
> OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
> THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
> PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
> IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
> ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
>
> 16. Limitation of Liability.
>
> IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
> WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
> THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
> GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
> USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
> DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
> PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
> EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
> SUCH DAMAGES.
>
> 17. Interpretation of Sections 15 and 16.
>
> If the disclaimer of warranty and limitation of liability provided
> above cannot be given local legal effect according to their terms,
> reviewing courts shall apply local law that most closely approximates
> an absolute waiver of all civil liability in connection with the
> Program, unless a warranty or assumption of liability accompanies a
> copy of the Program in return for a fee.
>
> END OF TERMS AND CONDITIONS
>
> How to Apply These Terms to Your New Programs
>
> If you develop a new program, and you want it to be of the greatest
> possible use to the public, the best way to achieve this is to make it
> free software which everyone can redistribute and change under these terms.
>
> To do so, attach the following notices to the program. It is safest
> to attach them to the start of each source file to most effectively
> state the exclusion of warranty; and each file should have at least
> the "copyright" line and a pointer to where the full notice is found.
>
> <one line to give the program's name and a brief idea of what it does.>
> Copyright (C) <year> <name of author>
>
> This program is free software: you can redistribute it and/or modify
> it under the terms of the GNU General Public License as published by
> the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
>
> Also add information on how to contact you by electronic and paper mail.
>
> If the program does terminal interaction, make it output a short
> notice like this when it starts in an interactive mode:
>
> <program> Copyright (C) <year> <name of author>
> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
> This is free software, and you are welcome to redistribute it
> under certain conditions; type `show c' for details.
>
> The hypothetical commands `show w' and `show c' should show the appropriate
> parts of the General Public License. Of course, your program's commands
> might be different; for a GUI interface, you would use an "about box".
>
> You should also get your employer (if you work as a programmer) or school,
> if any, to sign a "copyright disclaimer" for the program, if necessary.
> For more information on this, and how to apply and follow the GNU GPL, see
> <http://www.gnu.org/licenses/>.
>
> The GNU General Public License does not permit incorporating your program
> into proprietary programs. If your program is a subroutine library, you
> may consider it more useful to permit linking proprietary applications with
> the library. If this is what you want to do, use the GNU Lesser General
> Public License instead of this License. But first, please read
> <http://www.gnu.org/philosophy/why-not-lgpl.html>.
`usr/share/licenses/qt5-base/LICENSE.GPL3-EXCEPT`:
> This is the GNU General Public License version 3, annotated with The
> Qt Company GPL Exception 1.0:
>
> -------------------------------------------------------------------------
>
> The Qt Company GPL Exception 1.0
>
> Exception 1:
>
> As a special exception you may create a larger work which contains the
> output of this application and distribute that work under terms of your
> choice, so long as the work is not otherwise derived from or based on
> this application and so long as the work does not in itself generate
> output that contains the output from this application in its original
> or modified form.
>
> Exception 2:
>
> As a special exception, you have permission to combine this application
> with Plugins licensed under the terms of your choice, to produce an
> executable, and to copy and distribute the resulting executable under
> the terms of your choice. However, the executable must be accompanied
> by a prominent notice offering all users of the executable the entire
> source code to this application, excluding the source code of the
> independent modules, but including any changes you have made to this
> application, under the terms of this license.
>
>
> -------------------------------------------------------------------------
>
> GNU GENERAL PUBLIC LICENSE
> Version 3, 29 June 2007
>
> Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
> Preamble
>
> The GNU General Public License is a free, copyleft license for
> software and other kinds of works.
>
> The licenses for most software and other practical works are designed
> to take away your freedom to share and change the works. By contrast,
> the GNU General Public License is intended to guarantee your freedom to
> share and change all versions of a program--to make sure it remains free
> software for all its users. We, the Free Software Foundation, use the
> GNU General Public License for most of our software; it applies also to
> any other work released this way by its authors. You can apply it to
> your programs, too.
>
> When we speak of free software, we are referring to freedom, not
> price. Our General Public Licenses are designed to make sure that you
> have the freedom to distribute copies of free software (and charge for
> them if you wish), that you receive source code or can get it if you
> want it, that you can change the software or use pieces of it in new
> free programs, and that you know you can do these things.
>
> To protect your rights, we need to prevent others from denying you
> these rights or asking you to surrender the rights. Therefore, you have
> certain responsibilities if you distribute copies of the software, or if
> you modify it: responsibilities to respect the freedom of others.
>
> For example, if you distribute copies of such a program, whether
> gratis or for a fee, you must pass on to the recipients the same
> freedoms that you received. You must make sure that they, too, receive
> or can get the source code. And you must show them these terms so they
> know their rights.
>
> Developers that use the GNU GPL protect your rights with two steps:
> (1) assert copyright on the software, and (2) offer you this License
> giving you legal permission to copy, distribute and/or modify it.
>
> For the developers' and authors' protection, the GPL clearly explains
> that there is no warranty for this free software. For both users' and
> authors' sake, the GPL requires that modified versions be marked as
> changed, so that their problems will not be attributed erroneously to
> authors of previous versions.
>
> Some devices are designed to deny users access to install or run
> modified versions of the software inside them, although the manufacturer
> can do so. This is fundamentally incompatible with the aim of
> protecting users' freedom to change the software. The systematic
> pattern of such abuse occurs in the area of products for individuals to
> use, which is precisely where it is most unacceptable. Therefore, we
> have designed this version of the GPL to prohibit the practice for those
> products. If such problems arise substantially in other domains, we
> stand ready to extend this provision to those domains in future versions
> of the GPL, as needed to protect the freedom of users.
>
> Finally, every program is threatened constantly by software patents.
> States should not allow patents to restrict development and use of
> software on general-purpose computers, but in those that do, we wish to
> avoid the special danger that patents applied to a free program could
> make it effectively proprietary. To prevent this, the GPL assures that
> patents cannot be used to render the program non-free.
>
> The precise terms and conditions for copying, distribution and
> modification follow.
>
> TERMS AND CONDITIONS
>
> 0. Definitions.
>
> "This License" refers to version 3 of the GNU General Public License.
>
> "Copyright" also means copyright-like laws that apply to other kinds of
> works, such as semiconductor masks.
>
> "The Program" refers to any copyrightable work licensed under this
> License. Each licensee is addressed as "you". "Licensees" and
> "recipients" may be individuals or organizations.
>
> To "modify" a work means to copy from or adapt all or part of the work
> in a fashion requiring copyright permission, other than the making of an
> exact copy. The resulting work is called a "modified version" of the
> earlier work or a work "based on" the earlier work.
>
> A "covered work" means either the unmodified Program or a work based
> on the Program.
>
> To "propagate" a work means to do anything with it that, without
> permission, would make you directly or secondarily liable for
> infringement under applicable copyright law, except executing it on a
> computer or modifying a private copy. Propagation includes copying,
> distribution (with or without modification), making available to the
> public, and in some countries other activities as well.
>
> To "convey" a work means any kind of propagation that enables other
> parties to make or receive copies. Mere interaction with a user through
> a computer network, with no transfer of a copy, is not conveying.
>
> An interactive user interface displays "Appropriate Legal Notices"
> to the extent that it includes a convenient and prominently visible
> feature that (1) displays an appropriate copyright notice, and (2)
> tells the user that there is no warranty for the work (except to the
> extent that warranties are provided), that licensees may convey the
> work under this License, and how to view a copy of this License. If
> the interface presents a list of user commands or options, such as a
> menu, a prominent item in the list meets this criterion.
>
> 1. Source Code.
>
> The "source code" for a work means the preferred form of the work
> for making modifications to it. "Object code" means any non-source
> form of a work.
>
> A "Standard Interface" means an interface that either is an official
> standard defined by a recognized standards body, or, in the case of
> interfaces specified for a particular programming language, one that
> is widely used among developers working in that language.
>
> The "System Libraries" of an executable work include anything, other
> than the work as a whole, that (a) is included in the normal form of
> packaging a Major Component, but which is not part of that Major
> Component, and (b) serves only to enable use of the work with that
> Major Component, or to implement a Standard Interface for which an
> implementation is available to the public in source code form. A
> "Major Component", in this context, means a major essential component
> (kernel, window system, and so on) of the specific operating system
> (if any) on which the executable work runs, or a compiler used to
> produce the work, or an object code interpreter used to run it.
>
> The "Corresponding Source" for a work in object code form means all
> the source code needed to generate, install, and (for an executable
> work) run the object code and to modify the work, including scripts to
> control those activities. However, it does not include the work's
> System Libraries, or general-purpose tools or generally available free
> programs which are used unmodified in performing those activities but
> which are not part of the work. For example, Corresponding Source
> includes interface definition files associated with source files for
> the work, and the source code for shared libraries and dynamically
> linked subprograms that the work is specifically designed to require,
> such as by intimate data communication or control flow between those
> subprograms and other parts of the work.
>
> The Corresponding Source need not include anything that users
> can regenerate automatically from other parts of the Corresponding
> Source.
>
> The Corresponding Source for a work in source code form is that
> same work.
>
> 2. Basic Permissions.
>
> All rights granted under this License are granted for the term of
> copyright on the Program, and are irrevocable provided the stated
> conditions are met. This License explicitly affirms your unlimited
> permission to run the unmodified Program. The output from running a
> covered work is covered by this License only if the output, given its
> content, constitutes a covered work. This License acknowledges your
> rights of fair use or other equivalent, as provided by copyright law.
>
> You may make, run and propagate covered works that you do not
> convey, without conditions so long as your license otherwise remains
> in force. You may convey covered works to others for the sole purpose
> of having them make modifications exclusively for you, or provide you
> with facilities for running those works, provided that you comply with
> the terms of this License in conveying all material for which you do
> not control copyright. Those thus making or running the covered works
> for you must do so exclusively on your behalf, under your direction
> and control, on terms that prohibit them from making any copies of
> your copyrighted material outside their relationship with you.
>
> Conveying under any other circumstances is permitted solely under
> the conditions stated below. Sublicensing is not allowed; section 10
> makes it unnecessary.
>
> 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
>
> No covered work shall be deemed part of an effective technological
> measure under any applicable law fulfilling obligations under article
> 11 of the WIPO copyright treaty adopted on 20 December 1996, or
> similar laws prohibiting or restricting circumvention of such
> measures.
>
> When you convey a covered work, you waive any legal power to forbid
> circumvention of technological measures to the extent such circumvention
> is effected by exercising rights under this License with respect to
> the covered work, and you disclaim any intention to limit operation or
> modification of the work as a means of enforcing, against the work's
> users, your or third parties' legal rights to forbid circumvention of
> technological measures.
>
> 4. Conveying Verbatim Copies.
>
> You may convey verbatim copies of the Program's source code as you
> receive it, in any medium, provided that you conspicuously and
> appropriately publish on each copy an appropriate copyright notice;
> keep intact all notices stating that this License and any
> non-permissive terms added in accord with section 7 apply to the code;
> keep intact all notices of the absence of any warranty; and give all
> recipients a copy of this License along with the Program.
>
> You may charge any price or no price for each copy that you convey,
> and you may offer support or warranty protection for a fee.
>
> 5. Conveying Modified Source Versions.
>
> You may convey a work based on the Program, or the modifications to
> produce it from the Program, in the form of source code under the
> terms of section 4, provided that you also meet all of these conditions:
>
> a) The work must carry prominent notices stating that you modified
> it, and giving a relevant date.
>
> b) The work must carry prominent notices stating that it is
> released under this License and any conditions added under section
> 7. This requirement modifies the requirement in section 4 to
> "keep intact all notices".
>
> c) You must license the entire work, as a whole, under this
> License to anyone who comes into possession of a copy. This
> License will therefore apply, along with any applicable section 7
> additional terms, to the whole of the work, and all its parts,
> regardless of how they are packaged. This License gives no
> permission to license the work in any other way, but it does not
> invalidate such permission if you have separately received it.
>
> d) If the work has interactive user interfaces, each must display
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> A compilation of a covered work with other separate and independent
> works, which are not by their nature extensions of the covered work,
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> in or on a volume of a storage or distribution medium, is called an
> "aggregate" if the compilation and its resulting copyright are not
> used to limit the access or legal rights of the compilation's users
> beyond what the individual works permit. Inclusion of a covered work
> in an aggregate does not cause this License to apply to the other
> parts of the aggregate.
>
> 6. Conveying Non-Source Forms.
>
> You may convey a covered work in object code form under the terms
> of sections 4 and 5, provided that you also convey the
> machine-readable Corresponding Source under the terms of this License,
> in one of these ways:
>
> a) Convey the object code in, or embodied in, a physical product
> (including a physical distribution medium), accompanied by the
> Corresponding Source fixed on a durable physical medium
> customarily used for software interchange.
>
> b) Convey the object code in, or embodied in, a physical product
> (including a physical distribution medium), accompanied by a
> written offer, valid for at least three years and valid for as
> long as you offer spare parts or customer support for that product
> model, to give anyone who possesses the object code either (1) a
> copy of the Corresponding Source for all the software in the
> product that is covered by this License, on a durable physical
> medium customarily used for software interchange, for a price no
> more than your reasonable cost of physically performing this
> conveying of source, or (2) access to copy the
> Corresponding Source from a network server at no charge.
>
> c) Convey individual copies of the object code with a copy of the
> written offer to provide the Corresponding Source. This
> alternative is allowed only occasionally and noncommercially, and
> only if you received the object code with such an offer, in accord
> with subsection 6b.
>
> d) Convey the object code by offering access from a designated
> place (gratis or for a charge), and offer equivalent access to the
> Corresponding Source in the same way through the same place at no
> further charge. You need not require recipients to copy the
> Corresponding Source along with the object code. If the place to
> copy the object code is a network server, the Corresponding Source
> may be on a different server (operated by you or a third party)
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> Corresponding Source, you remain obligated to ensure that it is
> available for as long as needed to satisfy these requirements.
>
> e) Convey the object code using peer-to-peer transmission, provided
> you inform other peers where the object code and Corresponding
> Source of the work are being offered to the general public at no
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>
> A separable portion of the object code, whose source code is excluded
> from the Corresponding Source as a System Library, need not be
> included in conveying the object code work.
>
> A "User Product" is either (1) a "consumer product", which means any
> tangible personal property which is normally used for personal, family,
> or household purposes, or (2) anything designed or sold for incorporation
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> typical or common use of that class of product, regardless of the status
> of the particular user or of the way in which the particular user
> actually uses, or expects or is expected to use, the product. A product
> is a consumer product regardless of whether the product has substantial
> commercial, industrial or non-consumer uses, unless such uses represent
> the only significant mode of use of the product.
>
> "Installation Information" for a User Product means any methods,
> procedures, authorization keys, or other information required to install
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> a modified version of its Corresponding Source. The information must
> suffice to ensure that the continued functioning of the modified object
> code is in no case prevented or interfered with solely because
> modification has been made.
>
> If you convey an object code work under this section in, or with, or
> specifically for use in, a User Product, and the conveying occurs as
> part of a transaction in which the right of possession and use of the
> User Product is transferred to the recipient in perpetuity or for a
> fixed term (regardless of how the transaction is characterized), the
> Corresponding Source conveyed under this section must be accompanied
> by the Installation Information. But this requirement does not apply
> if neither you nor any third party retains the ability to install
> modified object code on the User Product (for example, the work has
> been installed in ROM).
>
> The requirement to provide Installation Information does not include a
> requirement to continue to provide support service, warranty, or updates
> for a work that has been modified or installed by the recipient, or for
> the User Product in which it has been modified or installed. Access to a
> network may be denied when the modification itself materially and
> adversely affects the operation of the network or violates the rules and
> protocols for communication across the network.
>
> Corresponding Source conveyed, and Installation Information provided,
> in accord with this section must be in a format that is publicly
> documented (and with an implementation available to the public in
> source code form), and must require no special password or key for
> unpacking, reading or copying.
>
> 7. Additional Terms.
>
> "Additional permissions" are terms that supplement the terms of this
> License by making exceptions from one or more of its conditions.
> Additional permissions that are applicable to the entire Program shall
> be treated as though they were included in this License, to the extent
> that they are valid under applicable law. If additional permissions
> apply only to part of the Program, that part may be used separately
> under those permissions, but the entire Program remains governed by
> this License without regard to the additional permissions.
>
> When you convey a copy of a covered work, you may at your option
> remove any additional permissions from that copy, or from any part of
> it. (Additional permissions may be written to require their own
> removal in certain cases when you modify the work.) You may place
> additional permissions on material, added by you to a covered work,
> for which you have or can give appropriate copyright permission.
>
> Notwithstanding any other provision of this License, for material you
> add to a covered work, you may (if authorized by the copyright holders of
> that material) supplement the terms of this License with terms:
>
> a) Disclaiming warranty or limiting liability differently from the
> terms of sections 15 and 16 of this License; or
>
> b) Requiring preservation of specified reasonable legal notices or
> author attributions in that material or in the Appropriate Legal
> Notices displayed by works containing it; or
>
> c) Prohibiting misrepresentation of the origin of that material, or
> requiring that modified versions of such material be marked in
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>
> d) Limiting the use for publicity purposes of names of licensors or
> authors of the material; or
>
> e) Declining to grant rights under trademark law for use of some
> trade names, trademarks, or service marks; or
>
> f) Requiring indemnification of licensors and authors of that
> material by anyone who conveys the material (or modified versions of
> it) with contractual assumptions of liability to the recipient, for
> any liability that these contractual assumptions directly impose on
> those licensors and authors.
>
> All other non-permissive additional terms are considered "further
> restrictions" within the meaning of section 10. If the Program as you
> received it, or any part of it, contains a notice stating that it is
> governed by this License along with a term that is a further
> restriction, you may remove that term. If a license document contains
> a further restriction but permits relicensing or conveying under this
> License, you may add to a covered work material governed by the terms
> of that license document, provided that the further restriction does
> not survive such relicensing or conveying.
>
> If you add terms to a covered work in accord with this section, you
> must place, in the relevant source files, a statement of the
> additional terms that apply to those files, or a notice indicating
> where to find the applicable terms.
>
> Additional terms, permissive or non-permissive, may be stated in the
> form of a separately written license, or stated as exceptions;
> the above requirements apply either way.
>
> 8. Termination.
>
> You may not propagate or modify a covered work except as expressly
> provided under this License. Any attempt otherwise to propagate or
> modify it is void, and will automatically terminate your rights under
> this License (including any patent licenses granted under the third
> paragraph of section 11).
>
> However, if you cease all violation of this License, then your
> license from a particular copyright holder is reinstated (a)
> provisionally, unless and until the copyright holder explicitly and
> finally terminates your license, and (b) permanently, if the copyright
> holder fails to notify you of the violation by some reasonable means
> prior to 60 days after the cessation.
>
> Moreover, your license from a particular copyright holder is
> reinstated permanently if the copyright holder notifies you of the
> violation by some reasonable means, this is the first time you have
> received notice of violation of this License (for any work) from that
> copyright holder, and you cure the violation prior to 30 days after
> your receipt of the notice.
>
> Termination of your rights under this section does not terminate the
> licenses of parties who have received copies or rights from you under
> this License. If your rights have been terminated and not permanently
> reinstated, you do not qualify to receive new licenses for the same
> material under section 10.
>
> 9. Acceptance Not Required for Having Copies.
>
> You are not required to accept this License in order to receive or
> run a copy of the Program. Ancillary propagation of a covered work
> occurring solely as a consequence of using peer-to-peer transmission
> to receive a copy likewise does not require acceptance. However,
> nothing other than this License grants you permission to propagate or
> modify any covered work. These actions infringe copyright if you do
> not accept this License. Therefore, by modifying or propagating a
> covered work, you indicate your acceptance of this License to do so.
>
> 10. Automatic Licensing of Downstream Recipients.
>
> Each time you convey a covered work, the recipient automatically
> receives a license from the original licensors, to run, modify and
> propagate that work, subject to this License. You are not responsible
> for enforcing compliance by third parties with this License.
>
> An "entity transaction" is a transaction transferring control of an
> organization, or substantially all assets of one, or subdividing an
> organization, or merging organizations. If propagation of a covered
> work results from an entity transaction, each party to that
> transaction who receives a copy of the work also receives whatever
> licenses to the work the party's predecessor in interest had or could
> give under the previous paragraph, plus a right to possession of the
> Corresponding Source of the work from the predecessor in interest, if
> the predecessor has it or can get it with reasonable efforts.
>
> You may not impose any further restrictions on the exercise of the
> rights granted or affirmed under this License. For example, you may
> not impose a license fee, royalty, or other charge for exercise of
> rights granted under this License, and you may not initiate litigation
> (including a cross-claim or counterclaim in a lawsuit) alleging that
> any patent claim is infringed by making, using, selling, offering for
> sale, or importing the Program or any portion of it.
>
> 11. Patents.
>
> A "contributor" is a copyright holder who authorizes use under this
> License of the Program or a work on which the Program is based. The
> work thus licensed is called the contributor's "contributor version".
>
> A contributor's "essential patent claims" are all patent claims
> owned or controlled by the contributor, whether already acquired or
> hereafter acquired, that would be infringed by some manner, permitted
> by this License, of making, using, or selling its contributor version,
> but do not include claims that would be infringed only as a
> consequence of further modification of the contributor version. For
> purposes of this definition, "control" includes the right to grant
> patent sublicenses in a manner consistent with the requirements of
> this License.
>
> Each contributor grants you a non-exclusive, worldwide, royalty-free
> patent license under the contributor's essential patent claims, to
> make, use, sell, offer for sale, import and otherwise run, modify and
> propagate the contents of its contributor version.
>
> In the following three paragraphs, a "patent license" is any express
> agreement or commitment, however denominated, not to enforce a patent
> (such as an express permission to practice a patent or covenant not to
> sue for patent infringement). To "grant" such a patent license to a
> party means to make such an agreement or commitment not to enforce a
> patent against the party.
>
> If you convey a covered work, knowingly relying on a patent license,
> and the Corresponding Source of the work is not available for anyone
> to copy, free of charge and under the terms of this License, through a
> publicly available network server or other readily accessible means,
> then you must either (1) cause the Corresponding Source to be so
> available, or (2) arrange to deprive yourself of the benefit of the
> patent license for this particular work, or (3) arrange, in a manner
> consistent with the requirements of this License, to extend the patent
> license to downstream recipients. "Knowingly relying" means you have
> actual knowledge that, but for the patent license, your conveying the
> covered work in a country, or your recipient's use of the covered work
> in a country, would infringe one or more identifiable patents in that
> country that you have reason to believe are valid.
>
> If, pursuant to or in connection with a single transaction or
> arrangement, you convey, or propagate by procuring conveyance of, a
> covered work, and grant a patent license to some of the parties
> receiving the covered work authorizing them to use, propagate, modify
> or convey a specific copy of the covered work, then the patent license
> you grant is automatically extended to all recipients of the covered
> work and works based on it.
>
> A patent license is "discriminatory" if it does not include within
> the scope of its coverage, prohibits the exercise of, or is
> conditioned on the non-exercise of one or more of the rights that are
> specifically granted under this License. You may not convey a covered
> work if you are a party to an arrangement with a third party that is
> in the business of distributing software, under which you make payment
> to the third party based on the extent of your activity of conveying
> the work, and under which the third party grants, to any of the
> parties who would receive the covered work from you, a discriminatory
> patent license (a) in connection with copies of the covered work
> conveyed by you (or copies made from those copies), or (b) primarily
> for and in connection with specific products or compilations that
> contain the covered work, unless you entered into that arrangement,
> or that patent license was granted, prior to 28 March 2007.
>
> Nothing in this License shall be construed as excluding or limiting
> any implied license or other defenses to infringement that may
> otherwise be available to you under applicable patent law.
>
> 12. No Surrender of Others' Freedom.
>
> If conditions are imposed on you (whether by court order, agreement or
> otherwise) that contradict the conditions of this License, they do not
> excuse you from the conditions of this License. If you cannot convey a
> covered work so as to satisfy simultaneously your obligations under this
> License and any other pertinent obligations, then as a consequence you may
> not convey it at all. For example, if you agree to terms that obligate you
> to collect a royalty for further conveying from those to whom you convey
> the Program, the only way you could satisfy both those terms and this
> License would be to refrain entirely from conveying the Program.
>
> 13. Use with the GNU Affero General Public License.
>
> Notwithstanding any other provision of this License, you have
> permission to link or combine any covered work with a work licensed
> under version 3 of the GNU Affero General Public License into a single
> combined work, and to convey the resulting work. The terms of this
> License will continue to apply to the part which is the covered work,
> but the special requirements of the GNU Affero General Public License,
> section 13, concerning interaction through a network will apply to the
> combination as such.
>
> 14. Revised Versions of this License.
>
> The Free Software Foundation may publish revised and/or new versions of
> the GNU General Public License from time to time. Such new versions will
> be similar in spirit to the present version, but may differ in detail to
> address new problems or concerns.
>
> Each version is given a distinguishing version number. If the
> Program specifies that a certain numbered version of the GNU General
> Public License "or any later version" applies to it, you have the
> option of following the terms and conditions either of that numbered
> version or of any later version published by the Free Software
> Foundation. If the Program does not specify a version number of the
> GNU General Public License, you may choose any version ever published
> by the Free Software Foundation.
>
> If the Program specifies that a proxy can decide which future
> versions of the GNU General Public License can be used, that proxy's
> public statement of acceptance of a version permanently authorizes you
> to choose that version for the Program.
>
> Later license versions may give you additional or different
> permissions. However, no additional obligations are imposed on any
> author or copyright holder as a result of your choosing to follow a
> later version.
>
> 15. Disclaimer of Warranty.
>
> THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
> APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
> HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
> OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
> THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
> PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
> IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
> ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
>
> 16. Limitation of Liability.
>
> IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
> WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
> THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
> GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
> USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
> DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
> PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
> EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
> SUCH DAMAGES.
>
> 17. Interpretation of Sections 15 and 16.
>
> If the disclaimer of warranty and limitation of liability provided
> above cannot be given local legal effect according to their terms,
> reviewing courts shall apply local law that most closely approximates
> an absolute waiver of all civil liability in connection with the
> Program, unless a warranty or assumption of liability accompanies a
> copy of the Program in return for a fee.
>
> END OF TERMS AND CONDITIONS
>
> How to Apply These Terms to Your New Programs
>
> If you develop a new program, and you want it to be of the greatest
> possible use to the public, the best way to achieve this is to make it
> free software which everyone can redistribute and change under these terms.
>
> To do so, attach the following notices to the program. It is safest
> to attach them to the start of each source file to most effectively
> state the exclusion of warranty; and each file should have at least
> the "copyright" line and a pointer to where the full notice is found.
>
> <one line to give the program's name and a brief idea of what it does.>
> Copyright (C) <year> <name of author>
>
> This program is free software: you can redistribute it and/or modify
> it under the terms of the GNU General Public License as published by
> the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
>
> Also add information on how to contact you by electronic and paper mail.
>
> If the program does terminal interaction, make it output a short
> notice like this when it starts in an interactive mode:
>
> <program> Copyright (C) <year> <name of author>
> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
> This is free software, and you are welcome to redistribute it
> under certain conditions; type `show c' for details.
>
> The hypothetical commands `show w' and `show c' should show the appropriate
> parts of the General Public License. Of course, your program's commands
> might be different; for a GUI interface, you would use an "about box".
>
> You should also get your employer (if you work as a programmer) or school,
> if any, to sign a "copyright disclaimer" for the program, if necessary.
> For more information on this, and how to apply and follow the GNU GPL, see
> <http://www.gnu.org/licenses/>.
>
> The GNU General Public License does not permit incorporating your program
> into proprietary programs. If your program is a subroutine library, you
> may consider it more useful to permit linking proprietary applications with
> the library. If this is what you want to do, use the GNU Lesser General
> Public License instead of this License. But first, please read
> <http://www.gnu.org/philosophy/why-not-lgpl.html>.
`usr/share/licenses/qt5-base/LICENSE.LGPL3`:
> GNU LESSER GENERAL PUBLIC LICENSE
> Version 3, 29 June 2007
>
> Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
> Everyone is permitted to copy and distribute verbatim copies
> of this license document, but changing it is not allowed.
>
>
> This version of the GNU Lesser General Public License incorporates
> the terms and conditions of version 3 of the GNU General Public
> License, supplemented by the additional permissions listed below.
>
> 0. Additional Definitions.
>
> As used herein, "this License" refers to version 3 of the GNU Lesser
> General Public License, and the "GNU GPL" refers to version 3 of the GNU
> General Public License.
>
> "The Library" refers to a covered work governed by this License,
> other than an Application or a Combined Work as defined below.
>
> An "Application" is any work that makes use of an interface provided
> by the Library, but which is not otherwise based on the Library.
> Defining a subclass of a class defined by the Library is deemed a mode
> of using an interface provided by the Library.
>
> A "Combined Work" is a work produced by combining or linking an
> Application with the Library. The particular version of the Library
> with which the Combined Work was made is also called the "Linked
> Version".
>
> The "Minimal Corresponding Source" for a Combined Work means the
> Corresponding Source for the Combined Work, excluding any source code
> for portions of the Combined Work that, considered in isolation, are
> based on the Application, and not on the Linked Version.
>
> The "Corresponding Application Code" for a Combined Work means the
> object code and/or source code for the Application, including any data
> and utility programs needed for reproducing the Combined Work from the
> Application, but excluding the System Libraries of the Combined Work.
>
> 1. Exception to Section 3 of the GNU GPL.
>
> You may convey a covered work under sections 3 and 4 of this License
> without being bound by section 3 of the GNU GPL.
>
> 2. Conveying Modified Versions.
>
> If you modify a copy of the Library, and, in your modifications, a
> facility refers to a function or data to be supplied by an Application
> that uses the facility (other than as an argument passed when the
> facility is invoked), then you may convey a copy of the modified
> version:
>
> a) under this License, provided that you make a good faith effort to
> ensure that, in the event an Application does not supply the
> function or data, the facility still operates, and performs
> whatever part of its purpose remains meaningful, or
>
> b) under the GNU GPL, with none of the additional permissions of
> this License applicable to that copy.
>
> 3. Object Code Incorporating Material from Library Header Files.
>
> The object code form of an Application may incorporate material from
> a header file that is part of the Library. You may convey such object
> code under terms of your choice, provided that, if the incorporated
> material is not limited to numerical parameters, data structure
> layouts and accessors, or small macros, inline functions and templates
> (ten or fewer lines in length), you do both of the following:
>
> a) Give prominent notice with each copy of the object code that the
> Library is used in it and that the Library and its use are
> covered by this License.
>
> b) Accompany the object code with a copy of the GNU GPL and this license
> document.
>
> 4. Combined Works.
>
> You may convey a Combined Work under terms of your choice that,
> taken together, effectively do not restrict modification of the
> portions of the Library contained in the Combined Work and reverse
> engineering for debugging such modifications, if you also do each of
> the following:
>
> a) Give prominent notice with each copy of the Combined Work that
> the Library is used in it and that the Library and its use are
> covered by this License.
>
> b) Accompany the Combined Work with a copy of the GNU GPL and this license
> document.
>
> c) For a Combined Work that displays copyright notices during
> execution, include the copyright notice for the Library among
> these notices, as well as a reference directing the user to the
> copies of the GNU GPL and this license document.
>
> d) Do one of the following:
>
> 0) Convey the Minimal Corresponding Source under the terms of this
> License, and the Corresponding Application Code in a form
> suitable for, and under terms that permit, the user to
> recombine or relink the Application with a modified version of
> the Linked Version to produce a modified Combined Work, in the
> manner specified by section 6 of the GNU GPL for conveying
> Corresponding Source.
>
> 1) Use a suitable shared library mechanism for linking with the
> Library. A suitable mechanism is one that (a) uses at run time
> a copy of the Library already present on the user's computer
> system, and (b) will operate properly with a modified version
> of the Library that is interface-compatible with the Linked
> Version.
>
> e) Provide Installation Information, but only if you would otherwise
> be required to provide such information under section 6 of the
> GNU GPL, and only to the extent that such information is
> necessary to install and execute a modified version of the
> Combined Work produced by recombining or relinking the
> Application with a modified version of the Linked Version. (If
> you use option 4d0, the Installation Information must accompany
> the Minimal Corresponding Source and Corresponding Application
> Code. If you use option 4d1, you must provide the Installation
> Information in the manner specified by section 6 of the GNU GPL
> for conveying Corresponding Source.)
>
> 5. Combined Libraries.
>
> You may place library facilities that are a work based on the
> Library side by side in a single library together with other library
> facilities that are not Applications and are not covered by this
> License, and convey such a combined library under terms of your
> choice, if you do both of the following:
>
> a) Accompany the combined library with a copy of the same work based
> on the Library, uncombined with any other library facilities,
> conveyed under the terms of this License.
>
> b) Give prominent notice with the combined library that part of it
> is a work based on the Library, and explaining where to find the
> accompanying uncombined form of the same work.
>
> 6. Revised Versions of the GNU Lesser General Public License.
>
> The Free Software Foundation may publish revised and/or new versions
> of the GNU Lesser General Public License from time to time. Such new
> versions will be similar in spirit to the present version, but may
> differ in detail to address new problems or concerns.
>
> Each version is given a distinguishing version number. If the
> Library as you received it specifies that a certain numbered version
> of the GNU Lesser General Public License "or any later version"
> applies to it, you have the option of following the terms and
> conditions either of that published version or of any later version
> published by the Free Software Foundation. If the Library as you
> received it does not specify a version number of the GNU Lesser
> General Public License, you may choose any version of the GNU Lesser
> General Public License ever published by the Free Software Foundation.
>
> If the Library as you received it specifies that a proxy can decide
> whether future versions of the GNU Lesser General Public License shall
> apply, that proxy's public statement of acceptance of any version is
> permanent authorization for you to choose that version for the
> Library.
`usr/share/licenses/qt5-base/LICENSE.LGPLv3`:
> GNU LESSER GENERAL PUBLIC LICENSE
>
> The Qt Toolkit is Copyright (C) 2016 The Qt Company Ltd.
> Contact: http://www.qt.io/licensing/
>
> You may use, distribute and copy the Qt Toolkit under the terms of
> GNU Lesser General Public License version 3, which is displayed below.
> This license makes reference to the version 3 of the GNU General
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> (iii) Applications may not pass on functionality which in any way makes it
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> ; and
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> (xi) Licensee shall not attempt or enlist a third party to conduct or attempt
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> Above terms shall not be applicable if and to the extent they conflict with any
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> The Licensed Software may provide links to third party libraries or code
> (collectively "Third Party Software") to implement various functions. Third
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> access to Third Party Software may be included in the Licensed Software. Such
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> delivered with the Licensed Software or documented in the Licensed Software, as
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>
> EXCEPT FOR (I) CASES OF GROSS NEGLIGENCE OR INTENTIONAL MISCONDUCT, AND (II)
> BREACH OF CONFIDENTIALITY, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, IN
> NO EVENT SHALL EITHER PARTY'S TOTAL AGGREGATE LIABILITY UNDER THIS AGREEMENT
> EXCEED THE AGGREGATE LICENSE FEES PAID OR PAYABLE TO THE QT COMPANY FROM
> LICENSEE DURING THE PERIOD OF TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE
> EVENT RESULTING IN SUCH LIABILITY.
>
> THE PROVISIONS OF THIS SECTION 7 ALLOCATE THE RISKS UNDER THIS AGREEMENT
> BETWEEN THE QT COMPANY AND LICENSEE AND THE PARTIES HAVE RELIED UPON THE
> LIMITATIONS SET FORTH HEREIN IN DETERMINING WHETHER TO ENTER INTO THIS AGREEMENT.
>
> 7.2 Licensee's Indemnification
>
> Licensee shall indemnify and hold harmless The Qt Company from and against any
> claim, injury, judgment, settlement, loss or expense, including attorneys' fees
> related to: (a) Licensee's misrepresentation in connection with The Qt Company
> or the Licensed Software or breach of this Agreement, (b) the Application or
> Device (except where such cause of liability is solely attributable to the
> Licensed Software).
>
> 8. SUPPORT, UPDATES AND ONLINE SERVICES
>
> Upon due payment of the agreed License Fees the Licensee will be eligible to
> receive Support and Updates and to use the Online Services during the License
> Term, provided, however, that in the event the License Term is longer than 36
> months, Support is provided only for the first 12 months, unless the Parties
> specifically otherwise agree.
>
> Unless otherwise decided by The Company at its free and absolute discretion,
> Upgrades will not be included in the Support but may be available subject to
> additional fees.
>
> From time to time The Qt Company may change the Support terms, provided that
> during the respective ongoing License Term the level of Support provided by The
> Qt Company may not be reduced without the consent of the Licensee.
>
> Unless otherwise agreed, The Qt Company shall not be responsible for providing
> any service or support to Customers.
>
> 9. CONFIDENTIALITY
>
> Each Party acknowledges that during the Term of this Agreement each Party may
> receive information about the other Party's business, business methods,
> business plans, customers, business relations, technology, and other
> information, including the terms of this Agreement, that is confidential and
> of great value to the other Party, and the value of which would be
> significantly reduced if disclosed to third parties ("Confidential
> Information"). Accordingly, when a Party (the "Receiving Party") receives
> Confidential Information from the other Party (the "Disclosing Party"), the
> Receiving Party shall only disclose such information to employees and
> Contractors on a need to know basis, and shall cause its employees and
> employees of its Affiliates to: (i) maintain any and all Confidential
> Information in confidence; (ii) not disclose the Confidential Information to a
> third party without the Disclosing Party's prior written approval; and (iii)
> not, directly or indirectly, use the Confidential Information for any purpose
> other than for exercising its rights and fulfilling its responsibilities
> pursuant to this Agreement. Each Party shall take reasonable measures to
> protect the Confidential Information of the other Party, which measures shall
> not be less than the measures taken by such Party to protect its own
> confidential and proprietary information.
>
> Obligation of confidentiality shall not apply to information that (i) is or
> becomes generally known to the public through no act or omission of the
> Receiving Party; (ii) was in the Receiving Party's lawful possession prior to
> the disclosure hereunder and was not subject to limitations on disclosure or
> use; (iii) is developed independently by employees or Contractors of the
> Receiving Party or other persons working for the Receiving Party who have not
> had access to the Confidential Information of the Disclosing Party, as proven
> by the written records of the Receiving Party; (iv) is lawfully disclosed to
> the Receiving Party without restrictions, by a third party not under an
> obligation of confidentiality; or (v) the Receiving Party is legally compelled
> to disclose, in which case the Receiving Party shall notify the Disclosing
> Party of such compelled disclosure and assert the privileged and confidential
> nature of the information and cooperate fully with the Disclosing Party to
> limit the scope of disclosure and the dissemination of disclosed Confidential
> Information to the minimum extent necessary.
>
> The obligations under this Section 9 shall continue to remain in force for a
> period of five (5) years after the last disclosure, and, with respect to trade
> secrets, for so long as such trade secrets are protected under applicable trade
> secret laws.
>
> 10. FEES, DELIVERY AND PAYMENT
>
> 10.1 License Fees
>
> License Fees are described in The Qt Company's standard price list, quote or
> Purchase Order confirmation or in an appendix hereto, as the case may be.
>
> The License Fees shall not be refunded or claimed as a credit in any event or
> for any reason whatsoever.
>
> 10.2 Ordering Licenses
>
> Licensee may purchase Development Licenses and Distribution Licenses pursuant
> to agreed pricing terms or, if no specific pricing terms have been agreed upon,
> at The Qt Company's standard pricing terms applicable at the time of purchase.
>
> Licensee shall submit all purchase orders for Development Licenses and
> Distribution Licenses to The Qt Company by email or any other method acceptable
> to The Qt Company (each such order is referred to herein as a "Purchase Order")
> for confirmation, whereupon the Purchase Order shall become binding between the
> Parties.
>
> 10.3 Distribution License Packs
>
> Unless otherwise agreed, Distribution Licenses shall be purchased by way of
> Distribution License Packs.
>
> Upon due payment of the ordered Distribution License Pack(s), the Licensee will
> have an account of Distribution Licenses available for installing, bundling or
> integrating (all jointly "installing") the Redistributables with the Devices or
> for otherwise distributing the Redistributables in accordance with this
> Agreement.
>
> Each time Licensee "installs" or distributes a copy of Redistributables, then
> one Distribution License is used, and Licensee's account of available
> Distribution Licenses is decreased accordingly.
>
> Licensee may "install" copies of the Redistributables so long as Licensee has
> Distribution Licenses remaining on its account.
>
> Redistributables will be deemed to have been "installed" into a Device when one
> of the following circumstances shall have occurred: a) the Redistributables
> have been loaded onto the Device and used outside of the Licensee's premises or
> b) the Device has been fully tested and placed into Licensee's inventory
> (or sold) for the first time (i.e., Licensee will not be required to use
> (or pay for) more than one Distribution License for each individual Device,
> e.g. in a situation where a Device is returned to Licensee's inventory after
> delivery to a distributor or sale to a Customer). In addition, if Licensee
> includes a back-up copy of the Redistributables on a CD-ROM or other storage
> medium along with the product, that backup copy of the Redistributables will
> not be deemed to have been "installed" and will not require an additional
> Distribution License.
>
> 10.4 Payment Terms
>
> License Fees and any other charges under this Agreement shall be paid by
> Licensee no later than thirty (30) days from the date of the applicable invoice
> from The Qt Company.
>
> The Qt Company will submit an invoice to Licensee after the date of this
> Agreement and/or after The Qt Company receives a Purchase Order from
> Licensee.
>
> A late payment charge of the lower of (a) one percent per month; or (b) the
> interest rate stipulated by applicable law, shall be charged on any unpaid
> balances that remain past due.
>
> The Qt Company shall have the right to suspend, terminate or withhold grants
> of all rights to the Licensed Software hereunder, including but not limited to
> the Developer License, Distribution License, and Support, should Licensee fail
> to make payment in timely fashion.
>
> 10.5 Taxes
>
> All License Fees and other charges payable hereunder are gross amounts but
> exclusive of any value added tax, use tax, sales tax and other taxes, duties or
> tariffs ("Taxes"). Such applicable Taxes shall be paid by Licensee, or, where
> applicable, in lieu of payment of such Taxes, Licensee shall provide an
> exemption certificate to The Qt Company and any applicable authority.
>
> 11 RECORD-KEEPING AND REPORTING OBLIGATIONS; AUDIT RIGHTS
>
> 11.1 Licensee's Record-keeping
>
> Licensee shall at all times maintain accurate and up-to-date written records of
> Licensee's activities related to the use of Licensed Software and distribution
> of Redistributables. The records shall be adequate to determine Licensee's
> compliance with the provisions of this Agreement and to demonstrate the number
> of Designated Users and Redistributables distributed by Licensee. The records
> shall conform to good accounting practices reasonably acceptable to The Qt
> Company.
>
> Licensee shall, within thirty (30) days from receiving The Qt Company's request
> to that effect, deliver to The Qt Company a report on Licensee's usage of
> Licensed Software, such report to copies of Redistributables distributed by
> Licensee during that calendar quarter, and also detailing the number of
> undistributed copies of Redistributables made by Licensee and remaining in its
> account contain information, in sufficient detail, on (i) amount of users
> working with Licensed Software, (ii) copies of Redistributables distributed by
> Licensee during that calendar quarter, (iii) number of undistributed copies of
> Redistributables and corresponding number of unused Distribution Licenses
> remaining on Licensee's account, and (iv) any other information as The Qt
> Company may reasonably require from time to time.
>
> 11.2. The Qt Company's Audit Rights
>
> The Qt Company or an independent auditor acting on behalf of The Qt Company's,
> may, upon at least five (5) business days' prior written notice and at its
> expense, audit Licensee with respect to the use of the Redistributables, but
> not more frequently than once during each 6-month period. Such audit may be
> conducted by mail, electronic means or through an in-person visit to Licensee's
> place of business. Any such in-person audit shall be conducted during regular
> business hours at Licensee's facilities and shall not unreasonably interfere
> with Licensee's business activities. The Qt Company or the independent auditor
> acting on behalf of The Qt Company shall be entitled to inspect Licensee's
> Records. All such Licensee's Records and use thereof shall be subject to an
> obligation of confidentiality under this Agreement.
>
> If an audit reveals that Licensee is using the Licensed Software beyond scope
> of the licenses Licensee has paid for, Licensee agrees to immediately pay The
> Qt Company any amounts owed for such unauthorized use.
>
> In addition, in the event the audit reveals a material violation of the terms
> of this Agreement (underpayment of more than 5% of License Fees shall always be
> deemed a material violation for purposes of this section), then the Licensee
> shall pay The Qt Company's reasonable cost of conducting such audit.
>
> 12 TERM AND TERMINATION
>
> 12.1 Term
>
> This Agreement shall enter into force upon due acceptance by both Parties and
> remain in force for as long as there is any Development License(s) in force
> ("Term"), unless and until terminated pursuant to the terms of this Section 12.
>
> 12.2 Termination by The Qt Company
>
> The Qt Company shall have the right to terminate this Agreement upon thirty
> (30) days prior written notice if the Licensee is in material breach of any
> obligation of this Agreement and fails to remedy such breach within such notice
> period.
>
> 12.3 Mutual Right to Terminate
>
> Either Party shall have the right to terminate this Agreement immediately upon
> written notice in the event that the other Party becomes insolvent, files for
> any form of bankruptcy, makes any assignment for the benefit of creditors, has
> a receiver, administrative receiver or officer appointed over the whole or a
> substantial part of its assets, ceases to conduct business, or an act
> equivalent to any of the above occurs under the laws of the jurisdiction of the
> other Party.
>
> 12.4 Parties' Rights and Duties upon Termination
>
> Upon expiry or termination of the Agreement Licensee shall cease and shall
> cause all Designated Users (including those of its Affiliates' and
> Contractors') to cease using the Licensed Software and distribution of the
> Redistributables under this Agreement.
>
> Notwithstanding the above, in the event the Agreement expires or is terminated:
>
> (i) as a result of The Qt Company choosing not to renew the Development
> License(s) as set forth in Section 3.1, then all valid licenses possessed by
> the Licensee at such date shall be extended to be valid in perpetuity under the
> terms of this Agreement and Licensee is entitled to purchase additional
> licenses as set forth in Section 10.2; or
>
> (ii) for reason other than by The Qt Company pursuant to item (i) above or
> pursuant to Section 12.2, then the Licensee is entitled, for a period of six
> (6) months after the effective date of termination, to continue distribution of
> Devices under the Distribution Licenses paid but unused at such effective date
> of termination.
>
> Upon any such termination the Licensee shall destroy or return to The Qt
> Company all copies of the Licensed Software and all related materials and will
> certify the same to The Qt Company upon its request, provided however that
> Licensee may retain and exploit such copies of the Licensed Software as it may
> reasonably require in providing continued support to Customers.
>
> Expiry or termination of this Agreement for any reason whatsoever shall not
> relieve Licensee of its obligation to pay any License Fees accrued or payable
> to The Qt Company prior to the effective date of termination, and Licensee
> shall immediately pay to The Qt Company all such fees upon the effective date
> of termination. Termination of this Agreement shall not affect any rights of
> Customers to continue use of Applications and Devices (and therein incorporated
> Redistributables).
>
> 12.5 Extension in case of bankruptcy
>
> In the event The Qt Company is declared bankrupt under a final, non-cancellable
> decision by relevant court of law, and this Agreement is not, at the date of
> expiry of the Development License(s) pursuant to Section 3.1, assigned to
> party, who has assumed The Qt Company's position as a legitimate licensor of
> Licensed Software under this Agreement, then all valid licenses possessed by
> the Licensee at such date of expiry, and which the Licensee has not notified
> for expiry, shall be extended to be valid in perpetuity under the terms of
> this Agreement.
>
> 13. GOVERNING LAW AND LEGAL VENUE
>
> In the event this Agreement is in the name of The Qt Company Inc., a Delaware
> Corporation, then:
>
> (i) this Agreement shall be construed and interpreted in accordance with the
> laws of the State of California, USA, excluding its choice of law provisions;
>
> (ii) the United Nations Convention on Contracts for the International Sale of
> Goods will not apply to this Agreement; and
>
> (iii) any dispute, claim or controversy arising out of or relating to this
> Agreement or the breach, termination, enforcement, interpretation or validity
> thereof, including the determination of the scope or applicability of this
> Agreement to arbitrate, shall be determined by arbitration in San Francisco,
> USA, before one arbitrator. The arbitration shall be administered by JAMS
> pursuant to JAMS' Streamlined Arbitration Rules and Procedures. Judgment on the
> Award may be entered in any court having jurisdiction. This Section shall not
> preclude parties from seeking provisional remedies in aid of arbitration from a
> court of appropriate jurisdiction.
>
> In the event this Agreement is in the name of The Qt Company Ltd., a Finnish
> Company, then:
>
> (i) this Agreement shall be construed and interpreted in accordance with the
> laws of Finland, excluding its choice of law provisions;
>
> (ii) the United Nations Convention on Contracts for the International Sale of
> Goods will not apply to this Agreement; and
>
> (iii) any disputes, controversy or claim arising out of or relating to this
> Agreement, or the breach, termination or validity thereof shall be shall be
> finally settled by arbitration in accordance with the Arbitration Rules of
> Finland Chamber of Commerce. The arbitration tribunal shall consist of one (1),
> or if either Party so requires, of three (3), arbitrators. The award shall be
> final and binding and enforceable in any court of competent jurisdiction. The
> arbitration shall be held in Helsinki, Finland and the process shall be
> conducted in the English language. This Section shall not preclude parties from
> seeking provisional remedies in aid of arbitration from a court of appropriate
> jurisdiction.
>
> 14. GENERAL PROVISIONS
>
> 14.1 No Assignment
>
> Except in the case of a merger or sale of substantially all of its corporate
> assets, Licensee shall not be entitled to assign or transfer all or any of its
> rights, benefits and obligations under this Agreement without the prior written
> consent of The Qt Company, which shall not be unreasonably withheld or delayed.
> The Qt Company shall be entitled to freely assign or transfer any of its
> rights, benefits or obligations under this Agreement.
>
> 14.2 No Third Party Representations
>
> Licensee shall make no representations or warranties concerning the Licensed
> Software on behalf of The Qt Company. Any representation or warranty Licensee
> makes or purports to make on The Qt Company's behalf shall be void as to The
> Qt Company.
>
> 14.3 Surviving Sections
>
> Any terms and conditions that by their nature or otherwise reasonably should
> survive termination of this Agreement shall so be deemed to survive.
>
> 14.4 Entire Agreement
>
> This Agreement, the exhibits hereto, the License Certificate and any applicable
> Purchase Order constitute the complete agreement between the Parties and
> supersedes all prior or contemporaneous discussions, representations, and
> proposals, written or oral, with respect to the subject matters discussed
> herein.
>
> In the event of any conflict or inconsistency between this Agreement and any
> Purchase Order, the terms of this Agreement will prevail over the terms of the
> Purchase Order with respect to such conflict or inconsistency.
>
> Parties specifically acknowledge and agree that this Agreement prevails over
> any click-to-accept or similar agreements the Designated Users may need to
> accept online upon download of the Licensed Software, as may be required by
> The Qt Company's applicable processes relating to Licensed Software.
>
> 14.5 Modifications
>
> No modification of this Agreement shall be effective unless contained in a
> writing executed by an authorized representative of each Party. No term or
> condition contained in Licensee's Purchase Order shall apply unless expressly
> accepted by The Qt Company in writing.
>
> 14.6 Force Majeure
>
> Except for the payment obligations hereunder, neither Party shall be liable to
> the other for any delay or non-performance of its obligations hereunder in the
> event and to the extent that such delay or non-performance is due to an event
> of act of God, terrorist attack or other similar unforeseeable catastrophic
> event that prevents either Party for fulfilling its obligations under this
> Agreement and which such Party cannot avoid or circumvent ("Force Majeure
> Event"). If the Force Majeure Event results in a delay or non-performance of a
> Party for a period of three (3) months or longer, then either Party shall have
> the right to terminate this Agreement with immediate effect without any
> liability (except for the obligations of payment arising prior to the event of
> Force Majeure) towards the other Party.
>
> 14.7 Notices
>
> Any notice given by one Party to the other shall be deemed properly given and
> deemed received if specifically acknowledged by the receiving Party in writing
> or when successfully delivered to the recipient by hand, fax, or special
> courier during normal business hours on a business day to the addresses
> specified for each Party on the signature page. Each communication and document
> made or delivered by one Party to the other Party pursuant to this Agreement
> shall be in the English language.
>
> 14.8 Export Control
>
> Licensee acknowledges that the Redistributables may be subject to export
> control restrictions under the applicable laws of respective countries.
> Licensee shall fully comply with all applicable export license restrictions
> and requirements as well as with all laws and regulations relating to the
> Redistributables and exercise of licenses hereunder and shall procure all
> necessary governmental authorizations, including without limitation, all
> necessary licenses, approvals, permissions or consents, where necessary for the
> re-exportation of the Redistributables, Applications and/or Devices.
>
> 14.9 No Implied License
>
> There are no implied licenses or other implied rights granted under this
> Agreement, and all rights, save for those expressly granted hereunder, shall
> remain with The Qt Company and its licensors. In addition, no licenses or
> immunities are granted to the combination of the Licensed Software with any
> other software or hardware not delivered by The Qt Company under this Agreement.
>
> 14.10 Attorney Fees
>
> The prevailing Party in any action to enforce this Agreement shall be entitled
> to recover its attorney's fees and costs in connection with such action.
>
> 14.11 Severability
>
> If any provision of this Agreement shall be adjudged by any court of competent
> jurisdiction to be unenforceable or invalid, that provision shall be limited or
> eliminated to the minimum extent necessary so that this Agreement shall
> otherwise remain in full force and effect and enforceable.
>
>
> IN WITNESS WHEREOF, the Parties hereto, intending to be legally bound hereby,
> have caused this Agreement to be executed by Licensee's authorized
> representative installing the Licensed Software and accepting the terms
> hereof in connection therewith.
>
>
> Appendix 1
>
> 1. Parts of the Licensed Software that are permitted for distribution in
> object code form only ("Redistributables") under this Agreement:
>
> - The Licensed Software's Qt Essentials and Qt Add-on libraries
> - The Licensed Software's configuration tool ("qtconfig")
> - The Licensed Software's help tool ("Qt Assistant")
> - The Licensed Software's internationalization tools ("Qt Linguist", "lupdate",
> "lrelease")
> - The Licensed Software's QML ("Qt Quick") launcher tool ("qmlscene" or
> "qmlviewer")
> - The Licensed Software's installer framework
>
> 2. Parts of the Licensed Software that are not permitted for distribution
> include, but are not limited to:
>
> - The Licensed Software's source code and header files
> - The Licensed Software's documentation
> - The Licensed Software's documentation generation tool ("qdoc")
> - The Licensed Software's tool for writing makefiles ("qmake")
> - The Licensed Software's Meta Object Compiler ("moc")
> - The Licensed Software's User Interface Compiler ("uic")
> - The Licensed Software's Resource Compiler ("rcc")
> - The Licensed Software's parts of the IDE tool ("Qt Creator")
> - The Licensed Software's parts of the Design tools ("Qt 3D Studio" or
> "Qt Quick Designer")
> - The Licensed Software's Emulator
---
License of `bzip2`:
>
> --------------------------------------------------------------------------
>
> This program, "bzip2", the associated library "libbzip2", and all
> documentation, are copyright (C) 1996-2019 Julian R Seward. 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. 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.
>
> 3. Altered source versions must be plainly marked as such, and must
> not be misrepresented as being the original software.
>
> 4. The name of the author may not be used to endorse or promote
> products derived from this software without specific prior written
> permission.
>
> THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
>
> Julian Seward, jseward@acm.org
> bzip2/libbzip2 version 1.0.8 of 13 July 2019
>
> --------------------------------------------------------------------------
---
License of `libffi`:
> libffi - Copyright (c) 1996-2014 Anthony Green, Red Hat, Inc and others.
> See source files for details.
>
> 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.
---
License of `libjpeg-turbo`:
> libjpeg-turbo Licenses
> ======================
>
> libjpeg-turbo is covered by three compatible BSD-style open source licenses:
>
> - The IJG (Independent JPEG Group) License, which is listed in
> [README.ijg](README.ijg)
>
> This license applies to the libjpeg API library and associated programs
> (any code inherited from libjpeg, and any modifications to that code.)
>
> - The Modified (3-clause) BSD License, which is listed below
>
> This license covers the TurboJPEG API library and associated programs, as
> well as the build system.
>
> - The [zlib License](https://opensource.org/licenses/Zlib)
>
> This license is a subset of the other two, and it covers the libjpeg-turbo
> SIMD extensions.
>
>
> Complying with the libjpeg-turbo Licenses
> =========================================
>
> This section provides a roll-up of the libjpeg-turbo licensing terms, to the
> best of our understanding.
>
> 1. If you are distributing a modified version of the libjpeg-turbo source,
> then:
>
> 1. You cannot alter or remove any existing copyright or license notices
> from the source.
>
> **Origin**
> - Clause 1 of the IJG License
> - Clause 1 of the Modified BSD License
> - Clauses 1 and 3 of the zlib License
>
> 2. You must add your own copyright notice to the header of each source
> file you modified, so others can tell that you modified that file (if
> there is not an existing copyright header in that file, then you can
> simply add a notice stating that you modified the file.)
>
> **Origin**
> - Clause 1 of the IJG License
> - Clause 2 of the zlib License
>
> 3. You must include the IJG README file, and you must not alter any of the
> copyright or license text in that file.
>
> **Origin**
> - Clause 1 of the IJG License
>
> 2. If you are distributing only libjpeg-turbo binaries without the source, or
> if you are distributing an application that statically links with
> libjpeg-turbo, then:
>
> 1. Your product documentation must include a message stating:
>
> This software is based in part on the work of the Independent JPEG
> Group.
>
> **Origin**
> - Clause 2 of the IJG license
>
> 2. If your binary distribution includes or uses the TurboJPEG API, then
> your product documentation must include the text of the Modified BSD
> License (see below.)
>
> **Origin**
> - Clause 2 of the Modified BSD License
>
> 3. You cannot use the name of the IJG or The libjpeg-turbo Project or the
> contributors thereof in advertising, publicity, etc.
>
> **Origin**
> - IJG License
> - Clause 3 of the Modified BSD License
>
> 4. The IJG and The libjpeg-turbo Project do not warrant libjpeg-turbo to be
> free of defects, nor do we accept any liability for undesirable
> consequences resulting from your use of the software.
>
> **Origin**
> - IJG License
> - Modified BSD License
> - zlib License
>
>
> The Modified (3-clause) BSD License
> ===================================
>
> Copyright (C)2009-2019 D. R. Commander. All Rights Reserved.
> Copyright (C)2015 Viktor Szathmáry. All Rights Reserved.
>
> Redistribution and use in source and binary forms, with or without
> modification, are permitted provided that the following conditions are met:
>
> - Redistributions of source code must retain the above copyright notice,
> this list of conditions and the following disclaimer.
> - 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.
> - Neither the name of the libjpeg-turbo Project 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 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 HOLDERS 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.
>
>
> Why Three Licenses?
> ===================
>
> The zlib License could have been used instead of the Modified (3-clause) BSD
> License, and since the IJG License effectively subsumes the distribution
> conditions of the zlib License, this would have effectively placed
> libjpeg-turbo binary distributions under the IJG License. However, the IJG
> License specifically refers to the Independent JPEG Group and does not extend
> attribution and endorsement protections to other entities. Thus, it was
> desirable to choose a license that granted us the same protections for new code
> that were granted to the IJG for code derived from their software.
---
License of `libpng`:
> COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
> =========================================
>
> PNG Reference Library License version 2
> ---------------------------------------
>
> * Copyright (c) 1995-2019 The PNG Reference Library Authors.
> * Copyright (c) 2018-2019 Cosmin Truta.
> * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
> * Copyright (c) 1996-1997 Andreas Dilger.
> * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
>
> The software is supplied "as is", without warranty of any kind,
> express or implied, including, without limitation, the warranties
> of merchantability, fitness for a particular purpose, title, and
> non-infringement. In no event shall the Copyright owners, or
> anyone distributing the software, be liable for any damages or
> other liability, whether in contract, tort or otherwise, arising
> from, out of, or in connection with the software, or the use or
> other dealings in the software, even if advised of the possibility
> of such damage.
>
> Permission is hereby granted to use, copy, modify, and distribute
> this software, or portions hereof, for any purpose, without fee,
> 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 Copyright notice may not be removed or altered from any
> source or altered source distribution.
>
>
> PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
> -----------------------------------------------------------------------
>
> libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
> Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
> derived from libpng-1.0.6, and are distributed according to the same
> disclaimer and license as libpng-1.0.6 with the following individuals
> added to the list of Contributing Authors:
>
> Simon-Pierre Cadieux
> Eric S. Raymond
> Mans Rullgard
> Cosmin Truta
> Gilles Vollant
> James Yu
> Mandar Sahastrabuddhe
> Google Inc.
> Vadim Barkov
>
> and with the following additions to the disclaimer:
>
> There is no warranty against interference with your enjoyment of
> the library or against infringement. There is no warranty that our
> efforts or the library will fulfill any of your particular purposes
> or needs. This library is provided with all faults, and the entire
> risk of satisfactory quality, performance, accuracy, and effort is
> with the user.
>
> Some files in the "contrib" directory and some configure-generated
> files that are distributed with libpng have other copyright owners, and
> are released under other open source licenses.
>
> libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
> Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
> libpng-0.96, and are distributed according to the same disclaimer and
> license as libpng-0.96, with the following individuals added to the
> list of Contributing Authors:
>
> Tom Lane
> Glenn Randers-Pehrson
> Willem van Schaik
>
> libpng versions 0.89, June 1996, through 0.96, May 1997, are
> Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
> and are distributed according to the same disclaimer and license as
> libpng-0.88, with the following individuals added to the list of
> Contributing Authors:
>
> John Bowler
> Kevin Bracey
> Sam Bushell
> Magnus Holmgren
> Greg Roelofs
> Tom Tanner
>
> Some files in the "scripts" directory have other copyright owners,
> but are released under this license.
>
> libpng versions 0.5, May 1995, through 0.88, January 1996, are
> Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
>
> For the purposes of this copyright and license, "Contributing Authors"
> is defined as the following set of individuals:
>
> Andreas Dilger
> Dave Martindale
> Guy Eric Schalnat
> Paul Schmidt
> Tim Wegner
>
> The PNG Reference Library is supplied "AS IS". The Contributing
> Authors and Group 42, Inc. disclaim all warranties, expressed or
> implied, including, without limitation, the warranties of
> merchantability and of fitness for any purpose. The Contributing
> Authors and Group 42, Inc. assume no liability for direct, indirect,
> incidental, special, exemplary, or consequential damages, which may
> result from the use of the PNG Reference Library, even if advised of
> the possibility of such damage.
>
> Permission is hereby granted to use, copy, modify, and distribute this
> source code, or portions hereof, for any purpose, without fee, subject
> to the following restrictions:
>
> 1. The origin of this source code must not be misrepresented.
>
> 2. Altered versions must be plainly marked as such and must not
> be misrepresented as being the original source.
>
> 3. This Copyright notice may not be removed or altered from any
> source or altered source distribution.
>
> The Contributing Authors and Group 42, Inc. specifically permit,
> without fee, and encourage the use of this source code as a component
> to supporting the PNG file format in commercial products. If you use
> this source code in a product, acknowledgment is not required but would
> be appreciated.
---
License of `zlib`:
> Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
>
> 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.
>
> Jean-loup Gailly Mark Adler
> jloup@gzip.org madler@alumni.caltech.edu
>
>
> The data format used by the zlib library is described by RFCs (Request for
> Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
> (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).