$ grep UNKNOWN licensecheck.log-1.txt | wc -l
1174

$ grep UNKNOWN licensecheck.log-1.txt | \
    grep -i -v \\.png | \
    grep -v tools/updateinstaller | \
    grep -v tools/updaterevision | \
    grep -v /lzma/ | \
    grep -v \\.ts | \
    grep -v \\.ui | \
    grep -v /bzip2/ | \
    grep -v /zlib/ | \
    grep -v /dependencies/ | \
    wc -l
108

Quote from Zalewa
1. How do we satisfy the errors it prints for .png files or other images?

Quote from Zalewa
2. How do we satisfy the errors for code that is not ours?

Quote from Zalewa
2.1. Some of this belongs to bzip/zlib dependencies that can be statically linked into Doomseeker but also can be replaced by OS libraries: bzip/zlib. This code is actually forcefully statically linked in Windows builds because finding compatible, pre-built library versions on Windows is a nightmare born in hell.

Quote from Zalewa
2.2. There is some code that is used to build tools that are

Quote from Zalewa
2.3. lzma is "public domain", yet the tool spills out problems. Should we ignore that?

7z ANSI-C Decoder 9.35
----------------------

...

LICENSE
-------

7z ANSI-C Decoder is part of the LZMA SDK.
LZMA SDK is written and placed in the public domain by Igor Pavlov.

Quote from Zalewa
.ui and .ts files are generated by Qt tools.

Quote from LGPLv2.1
The act of running a program using the Library is not restricted, and output from such a program is covered only if its contents constitute a work based on the Library (independent of the use of the Library in a tool for writing it).

Quote from Zalewa
2.5. doxygen.* files are generated by doxygen, albeit we can alter them pretty safely to add license header. But, should we? It was generated by a tool, even if it was later modified by hand.

Quote from Zalewa
2.6. ./src/core/CMakeFileListing.txt is a file that is generated by building tools.

Quote from Zalewa
tools/doomseeker-portable.bat is a one-liner.

Quote from Zalewa
What is the exact definition of done here? If I grep the licensecheck log file by UNKNOWN it spills out 1174 lines. Do we need to get this down to zero?

Quote from Zalewa
Since the licensing in the source files indeed states that any "later" (L)GPL version can be used, we should probably amend all text that states that Doomseeker/Wadseeker is on (L)GPLv2(.1) and doesn't state "or later".

• Some have real licenses or are ineligible for copyright, so I've removed them manually from the output.


• Some things will be nuked from Debian DFSG package. Those are marked appropriately and should have consideration to be removed where possible.


• media/icons/buddies.png seems to be non-free and should be replaced (unfortunately). Freedoom, anyone?


• Exact sources for some media icons are missing. Some are ineligible for copyright. Flags are public domain.


• Zalewa has some Doomseeker code in there with copyright notices but no permission for GPLv2+. Those are marked too.


• media/slotstyles/marines/ I'm unsure, so I left it up for a question.


• Core source has few files without copyright notice and no permission notice.


• tools/updateinstaller/external/AnyOption/* is a non-free release, needs update to Expat released version.


• tools/updateinstaller/external/verpatch/* is CPOL licensed, non-free. Must be removed.


• tools/updateinstaller/external/win32cpp/* has more of this CPOL crap.


• tools/updateinstaller/* in general is a pile of stinky poo I don't want to deal with. Code duplication (minizip), zlib contribs (removed in Debian), just a pain in the ass.


• CMakeLists.txt files are probably copyrightable and manually crafted.

Quote from "WubTheCaptain"
How's Windows binaries, are they legal?

Quote from Zalewa
If it's nevertheless necessary to include the copyright & license statement, will a small one or two-liner footnote at the end of the file be sufficient? Ie.

  Copyright (C) <YEAR> The Doomseeker Team

  Copying and distribution of this file, with or without modification,
  are permitted in any medium without royalty provided the copyright
  notice and this notice are preserved.

Quote from Zalewa
Can we copyright or license Sonic's head in srb2.xpm?

Quote from Zalewa
Part of Microsoft redist for Visual Studio 2008, but the original files in the actual redist have a bug that was never fixed by Microsoft and the program will not run with them.

Quote from Zalewa
./cmake/Modules/FindRequiredSystemLibraries.cmake:

Quote from Zalewa
updaterevision tool is used for generating a header file and not redistributed in any form

CMake Error at CMakeLists.txt:104 (add_subdirectory):
  add_subdirectory given source "tools/updaterevision" which is not an
  existing directory.

make[2]: *** No rule to make target '../src/core/updaterevision', needed by 'src/core/CMakeFiles/revision_check'.  
Stop.
CMakeFiles/Makefile2:160: recipe for target 'src/core/CMakeFiles/revision_check.dir/all' failed
make[1]: *** [src/core/CMakeFiles/revision_check.dir/all] Error 2

Quote from Zalewa
Mendeley updater (updater.exe) source-code.

Quote from Zalewa
Besides, putting a copyright statement over what's essentially a directory listing does seem a bit excessive.

Quote from Zalewa
./.hgignore: *No copyright* UNKNOWN

Quote
Unless stated otherwise, all files listed here are under the LGPL v2.1 or later.

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.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Quote
logo-src.psd

Quote
Danish Royalty Free Icons by Jonas Rask Design

Quote

+- Crystal Clear (crystal_clear)
+	link:'http://commons.wikimedia.org/wiki/Crystal_Clear [^]'
+	license: LGPL-2.1
+	license link:'http://creativecommons.org/licenses/LGPL/2.1/ [^]'

Quote

+- Oxygen Icons 4.3.1 (KDE) (oxygen)
+	link:'http://www.oxygen-icons.org/ [^]'
+	License link:'http://creativecommons.org/licenses/by-sa/3.0/ [^]'
+		'http://creativecommons.org/licenses/LGPL/2.1/ [^]'

Quote

+- nuovEXT2
+	link: 'https://github.com/redtide/nuovext-icon-theme/ [^]'
+	license: LGPL v2.1

Quote

+- Copyright (C) Aha-Soft
+	link:'http://www.aha-soft.com/ [^]'
+	license: Attribution 3.0 Unported (CC BY 3.0)
+	license link:'https://creativecommons.org/licenses/by/3.0/ [^]'
+
+icons/person.png (blue hue changed to red)

Quote

+	Notes: data stored in this file does indeed come from MaxMind's
+		GeoIP2 database, although the format in which this data
+		is stored is native to Doomseeker.

Quote
Copyright unclaimed due to pictures depicting game logos

Quote from "Wub"

"These [exclamation mark] icons are free to use in both commercial products as well as personal use." has a bit of ambiguity on it in regard to right of redistribution, and it certainly makes no mention of creating derivative works (modifications).

Quote from "Wub"

The source of [Crystal Clear] original work is'https://store.kde.org/content/show.php/Crystal+Clear?content=25668. [^]'

Quote from "Wub"

Debian rejects generated files [IpToCountry.dat] without corresponding original form. They're not considered as the preferred form of modification, so the corresponding original form will have to be provided and tools/geolite2_conv.py run during the build, or eventuallly depend on 0003235 for availability.

(C) 2013 Yusuke Kamiyamane. All rights reserved.

These icons are licensed under a Creative Commons
Attribution 3.0 License.
<http://creativecommons.org/licenses/by/3.0/>

Quote from WubTheCaptain

(C) 2013 Yusuke Kamiyamane. All rights reserved.

These icons are licensed under a Creative Commons
Attribution 3.0 License.
<http://creativecommons.org/licenses/by/3.0/>

Quote from "WubTheCaptain"
The game engine icons, though?

• Chocolate Doom icon is either GPLv2-only or GPLv2+. The chocolate ice cream cone was originally uploaded by another author on Flickr, but the copyright holder agreed to the same GPL license as the Chocolate Doom project. It is also missing the source for the right-side "D" in the icon ("preferred form of the work for making modifications to it"), thus strict GPLv2+ compliance seems not to be possible.'https://github.com/chocolate-doom/chocolate-doom/tree/413f4ecd7aae41229cc7b40ea3275970dc18cdb4/data [^]'


• Odamex icon is assumably GPLv2-only (for the lack of "any later version" clarification). Again, no GPL'd source that I can find.'https://github.com/odamex/odamex/tree/f2b13d0bb4215e570b1e723cb7d9b237995a44c5/media [^]'


• SRB2 icon is non-free and not redistributable without permission from Sega (copyright holders of Sonic the Hedgehog character).


• Turok 2 EX icon is non-free(?) not redistributable without permission from Nightdive Studios.


• Zandronum, dunno. Hard to find, but a quick uneducated guess may be Sleepycat (GPL + BSD).

Quote from "WubTheCaptain"
I sometimes forget the plugins are not baked into the executable

1. the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;


2. the nature of the copyrighted work;


3. the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and


4. the effect of the use upon the potential market for or value of the copyrighted work.

Quote from "WubTheCaptain"
src/plugins/turok2ex/crc.cpp

Quote from "Zalewa"
I emailed Edward850 asking if he knows the source, as he was the one to submit this file to the repo.

Quote from "Edward850"
It's from Intel's whitepapers on CRC. The slice by 8 implementation.

Specifically;'https://www.winrar-france.fr/winrar_instructions_for_use/source/html/HELPIntelCRC.htm [^]' which is under BSD. You may need to update the source file to include the copyright text, in hindsight, but it is LGPL compliant.

Also in case you're wondering, we can't give free license rights to the Turok icon for obvious reasons (that would be relinquishing of trademark), however you could simply change the icon for free distribution. For example, circle crop this head:'https://commons.wikimedia.org/wiki/File:Daspletosaurus_torosus_steveoc.jpg

Quote from Zalewa
I actually lost track on what remains to be done.

• media/icons/buddies.png: ok, resolved (non-free theme also distributed, nope for Debian)
  
• tools/updateinstaller/*: barely (not) ok? It's still "a pile of stinky poo". Code Project Open License – Wikipedia. Quick non-legal hunch is "yes, you can distribute it", but a big nope for Debian. Larger software distributions including the code can be "sold", but the dependencies itself cannot be. Cannot be sublicensed. Must include a copy of the license or an URI to it (section 5(e)) – not done yet?
  
• CMakeLists.txt: ok, resolved.
  
• lzma: ok (nope for Debian policy)
  
• bzip2/zlib: ok (nope for Debian policy)
  
• LGPL "later" clause: ok
  
• Doxygen: ok?
  
• icons: ok?
  
• PSD icon: ok (nope for Debian policy)
  
• Game logos: ok non-free "fair use"? (nope for Debian's policy?)
  
• Fugue icons: ok, I believe CC BY-3.0 (author's website). No reply from the author for clarification.
  
• SRB2: It's complicated. Not okay with me personally by legal hunch (and probably not okay from Debian's policy perspective), but fan art is a minefield... I personally don't believe SRB2 itself even pass the "fair use" test in United States, assuming it works as a replacement to Sega's other Sonic games (potential financial loss). Plugin code is our work which is ok and not copyright encumbered (afaik), however legal liability may exist (in some countries) for making access to infringement available (if I could claim infringement here). But there's no copyright infringement claim (yet)...
  
• Turok (src/plugins/turok2ex/crc.cpp): ok with BSD-license inclusion (nope for Debian policy?)
  
• MaxMind GeoLite2: ok on one condition: distributions of Doomseeker/Wadseeker with GeoLite2 (tarballs) must happen under conditions of GPLv3-only, due to one-way compatibility of CC BY-SA 4.0 to GPLv3. Else there'd be a violation of CC BY-SA 4.0 section 3, article (b)(3), of MaxMind's license. Compatible Licenses - Creative Commons Dunno on linking.

Quote from WubTheCaptain
distributions of Doomseeker/Wadseeker with GeoLite2 (tarballs)

Quote from Zalewa
I added a general note to the changelog on this task:'https://bitbucket.org/Doomseeker/doomseeker/commits/e96d4f5e161204fe32048f60be6a0911d9729537 [^]'