Here is a list of third-party libraries ("External Projects") that can optionally be integrated, or are mandatory for specific target platforms. Below is a detailed list of the origins, licenses and possible modifications for each library. Also, each library has a ExtProj-<alias>.cmake file (in cmake/) that can be investigated for details about the integration.

These libraries are integrated if the project has been initialized with default settings, which include the toolbox (by not using the --bare option). See cmake/Toolbox.cmake for details.

• code is used from the Android SDK installation (no code distributed)
• see ExtProj-android-native-app.cmake
• license: check license information included in Android SDK

• version: 4de0ea3, 2.4.0 (unreleased)
• origin: https://github.com/erincatto/box2d/tree/4de0ea3f1e9511ebd4c85b52e200a8bd9c2fae9e
• extracted from origin:
  • LICENSE
  • include/*
  • src/collision/*
  • src/common/*
  • src/dynamics/*
  • src/rope/*
• modifications are marked with YOURGAME_MODIFICATION
• license: box2d/LICENSE

• version: 2.89
• origin: https://github.com/bulletphysics/bullet3/releases/tag/2.89
• extracted from origin:
  • LICENSE.txt
  • src/Bullet3Common/*
  • src/BulletCollision/*
  • src/BulletDynamics/*
  • src/BulletInverseDynamics/*
  • src/BulletSoftBody/*
  • src/LinearMath/*
  • src/btBulletCollisionCommon.h
  • src/btBulletDynamicsCommon.h
  • src/btLinearMathAll.cpp
• license: bullet/LICENSE.txt

• version: 1.23.2
• origin: https://github.com/tronkko/dirent/releases/tag/1.23.2
• extracted from origin:
  • include/dirent.h, LICENSE
• license: dirent/LICENSE

• version: 2.4.8
• origin: https://github.com/doctest/doctest/releases/tag/v2.4.8
• extracted from origin:
  • doctest.h, LICENSE.txt
• license: doctest/LICENSE.txt

• version: 9.96.7
• origin: https://github.com/zuhd-org/easyloggingpp/releases/tag/v9.96.7
• extracted from origin:
  • LICENSE, easylogging++.{h,cc}
• license: easyloggingpp/LICENSE

• version: 7a7a9f5 (master)
• origin: https://github.com/samhocevar/portable-file-dialogs/tree/7a7a9f5fa800b28331672742c0e774d46186e34f
• extracted from origin:
  • COPYING, portable-file-dialogs.h
• license: portable-file-dialogs/COPYING

• version: 2.3.2
• origin: https://github.com/SanderMertens/flecs/releases/tag/v2.3.2
• extracted from origin:
  • LICENSE, flecs.{h,c}
• license: flecs/LICENSE

• version: 1.0.0
• origin: https://github.com/r-lyeh-archived/fsm/tree/41c635ef95d838096f891579d254eccc163ee6af
• extracted from origin:
  • LICENSE, fsm.hpp
• license: fsm/LICENSE

• version: 0.1.33 (via webtool)
• origin: see glad.h
• license: "Any of Public Domain, WTFPL or CC0.", see: FAQ at https://github.com/Dav1dde/glad
  • glad.{h,c}
• license: mentioned in file
  • khrplatform.h

• version: 3.3
• origin: https://github.com/glfw/glfw/releases/tag/3.3
• extracted from origin:
  • all, except deps/, docs/, examples/, tests/
• license: glfw/LICENSE.md

• version: 0.9.9.6
• origin: https://github.com/g-truc/glm/releases/tag/0.9.9.6
• extracted from origin:
  • glm/, copying.txt
• license: glm/copying.txt

• version: 1.82
• origin: https://github.com/ocornut/imgui/releases/tag/v1.82
• extracted from origin: see files below
• license: imgui/LICENSE.txt
  • backends/imgui_impl_android.{h,cpp}
  • backends/imgui_impl_glfw.{h,cpp}
  • backends/imgui_impl_opengl3.{h,cpp}
  • imconfig.h
  • imgui.{h,cpp}
  • imgui_demo.cpp
  • imgui_draw.cpp
  • imgui_internal.h
  • imgui_tables.cpp
  • imgui_widgets.cpp
• license: mentioned in files
  • imstb_rectpack.h
  • imstb_textedit.h
  • imstb_truetype.h

• version: 0a88824f7d
• origin: https://github.com/BalazsJako/ImGuiColorTextEdit/tree/0a88824f7de8d0bd11d8419066caa7d3469395c4
• extracted from origin:
  • TextEditor.{h,cpp}, LICENSE
• license: imgui/TextEditor_LICENSE

• version: 450b9cf352
• origin: https://github.com/ocornut/imgui_club/tree/450b9cf352c51530b9e23fb14b83891c2555b032
• extracted from origin:
  • imgui_memory_editor.h, LICENSE.txt
• license: imgui/imgui_memory_editor_LICENSE.txt

• version: 3.8.0
• origin: https://github.com/nlohmann/json/releases/tag/v3.8.0
• extracted from origin:
  • json.hpp, LICENSE.MIT
• license: json/LICENSE.MIT

• version: 5.4.0
• origin: https://github.com/lua/lua/releases/tag/v5.4.0
• extracted from origin:
  • all .h and .c files from repo root
• license: see end of file lua/lua.h

• version: 2.7, fab7b33 (master)
• origin: https://github.com/vinniefalco/LuaBridge/tree/fab7b33b896a42dcc865ba5ecdbacd9f409137f8
• extracted from origin:
  • Source/LuaBridge/*
• license: luabridge/license.txt

• version: 0.10.16 (unreleased), 54fe965 (dev)
• origin: https://github.com/dr-soft/miniaudio/tree/54fe965bc019ebc6e96a0c04a0a5550c1ca8b2fe
• extracted from origin:
  • miniaudio.h, LICENSE
• license: miniaudio/LICENSE

• version: c9064e3 (master)
• origin: https://github.com/nothings/stb/tree/c9064e317699d2e495f36ba4f9ac037e88ee371a
• extracted from origin: see files below
• license: mentioned in files
  • stb_image.h, version: 2.26
  • stb_image_write.h, version: 1.15
  • stb_vorbis.c, version: 1.20

• version: v2.0.0-rc1
• origin: https://github.com/syoyo/tinyobjloader/releases/tag/v2.0.0-rc1
• extracted from origin:
  • LICENSE, tiny_obj_loader.h
• license: tinyobjloader/LICENSE

• version: f3a86fd (master)
• origin: https://github.com/gpakosz/whereami/tree/f3a86fdf17b49c434a16bb4d9e45a135d4cc25f9
• extracted from origin:
  • LICENSE.MIT, whereami.{h,c}
• license: whereami/LICENSE.MIT