CMake addon creation structure

CMake help macros to create addon for Kodi

Kodi which uses it as a library for its binary addons has a special build system for this.

To implement this, a CMake macro brought by Kodi is used, this is "build_addon (...)". This processes various definitions passed by the addon to process the construction.

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Here's a minimal example of the addon used for CMakeLists.txt:

cmake_minimum_required(VERSION 3.12)
project(example.addon)
 
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR})
 
find_package(Kodi REQUIRED)
 
include_directories(${KODI_INCLUDE_DIR}
 
set(DEPLIBS ) # Here empty
set(EXAMPLE_SOURCES src/main.cpp)
set(EXAMPLE_HEADERS src/main.h)
 
build_addon((example.addon EXAMPLE DEPLIBS)
 
include(CPack)

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This is a list of special variables that can be passed to the macro. The parts defined with "*" must be given the second name given to the macro.

Here to define the necessary creation and installation files on addon CMakeLists.txt:

Name	Description
*_SOURCES	List of source code files to be complicated.
*_HEADERS	List of used source code header files.
*_CUSTOM_BINARY	For special cases where an already created library from an external source is inserted, the "* _SOURCES" and "* _HEADERS" are unused in this case. This is currently used primarily on game addons.
*_CUSTOM_DATA	To add additional required data from a folder, which are stored in the shared folder of the addon. With a "/" at the end of the content given to the folder is used, without the folder itself.
*_ADDITIONAL_BINARY	In case the additional library has to be installed for the addon, the path or CMake name can be given here.
*_ADDITIONAL_BINARY_EXE	In case you need to addon an additional application you can give the path or CMake name, it will be in the same folder as the addon library. The mode bits are set there as EXE.
*_ADDITIONAL_BINARY_DIRS	To add complete folders additionally to folders containing the addon library. With a "/" at the end of the content given to the folder is used, without the folder itself.

External creation Options, given by -D...:

Name	Description
PACKAGE_ZIP	To create a package as a ZIP file. This is also used to install locally addon together. Default is OFF.
PACKAGE_TGZ	To create a package as a TGZ file. Default is OFF.
BUILD_SHARED_LIBS	To define if addon library is shared or static. Default is ON to have shared.
USE_LTO	Use link time optimization. Default is OFF.