Create THIRD_PARTY.md for external code handling

Added all external code and license notices. Install THIRD_PARTY.md on installation step.

CMakeLists.txt

@@ -76,7 +76,10 @@ add_custom_command(
   WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
 )
 
-install(FILES README.md LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
+install(
+  FILES LICENSE README.md THIRD_PARTY.md
+  DESTINATION ${CMAKE_INSTALL_DOCDIR}
+)
 
 # rebuild version.hpp every time
 add_custom_target(get_git_hash ALL

Descent3/CMakeLists.txt

@@ -308,10 +308,3 @@ install(TARGETS Descent3 RUNTIME)
 if(BUILD_TESTING)
   add_subdirectory(tests)
 endif()
-
-add_custom_target(LicenseFiles
-  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/LICENSE" $<TARGET_FILE_DIR:Descent3>
-  COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_SOURCE_DIR}/third_party_licenses" "$<TARGET_FILE_DIR:Descent3>/Third-party licenses"
-  COMMENT "Create license files"
-)
-add_dependencies(Descent3 LicenseFiles)

THIRD_PARTY.md

@@ -0,0 +1,56 @@
+# Third party components
+
+This file contains information about third party components that are required
+for building Descent 3.
+
+## libacm
+
+libacm - library for InterPlay ACM Audio format. https://github.com/markokr/libacm
+
+* libacm/decode.c
+* libacm/libacm.h
+
+The libacm core code is licensed under minimal BSD/ISC license.
+
+```
+Copyright (c) 2004-2010, Marko Kreen
+
+Permission to use, copy, modify, and/or 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.
+```
+
+## stb
+
+Single-file public domain (or MIT licensed) libraries for C/C++. https://github.com/nothings/stb
+
+* third_party/stb/stb_image_write.h
+
+The stb code is licensed under MIT license.
+
+```
+Copyright (c) 2017 Sean Barrett
+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.
+```