Add a vendored copy of SDL
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# based on the files generated by CMake's write_basic_package_version_file
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# SDL2 CMake version configuration file:
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# This file is meant to be placed in Resources/CMake of a SDL2 framework
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if(NOT EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../Headers/SDL_version.h")
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message(AUTHOR_WARNING "Could not find SDL_version.h. This script is meant to be placed in the Resources/CMake directory of SDL2.framework")
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return()
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endif()
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file(READ "${CMAKE_CURRENT_LIST_DIR}/../../Headers/SDL_version.h" _sdl_version_h)
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string(REGEX MATCH "#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)" _sdl_major_re "${_sdl_version_h}")
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set(_sdl_major "${CMAKE_MATCH_1}")
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string(REGEX MATCH "#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)" _sdl_minor_re "${_sdl_version_h}")
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set(_sdl_minor "${CMAKE_MATCH_1}")
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string(REGEX MATCH "#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)" _sdl_patch_re "${_sdl_version_h}")
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set(_sdl_patch "${CMAKE_MATCH_1}")
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if(_sdl_major_re AND _sdl_minor_re AND _sdl_patch_re)
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set(PACKAGE_VERSION "${_sdl_major}.${_sdl_minor}.${_sdl_patch}")
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else()
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message(AUTHOR_WARNING "Could not extract version from SDL_version.h.")
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return()
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endif()
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if(PACKAGE_FIND_VERSION_RANGE)
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# Package version must be in the requested version range
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if ((PACKAGE_FIND_VERSION_RANGE_MIN STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MIN)
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OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_GREATER PACKAGE_FIND_VERSION_MAX)
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OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_GREATER_EQUAL PACKAGE_FIND_VERSION_MAX)))
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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else()
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set(PACKAGE_VERSION_COMPATIBLE TRUE)
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endif()
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else()
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if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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else()
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set(PACKAGE_VERSION_COMPATIBLE TRUE)
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if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
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set(PACKAGE_VERSION_EXACT TRUE)
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endif()
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endif()
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endif()
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# if the using project doesn't have CMAKE_SIZEOF_VOID_P set, fail.
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if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "")
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set(PACKAGE_VERSION_UNSUITABLE TRUE)
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endif()
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# SDL2 CMake configuration file:
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# This file is meant to be placed in Resources/CMake of a SDL2 framework
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# INTERFACE_LINK_OPTIONS needs CMake 3.12
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cmake_minimum_required(VERSION 3.12)
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include(FeatureSummary)
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set_package_properties(SDL2 PROPERTIES
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URL "https://www.libsdl.org/"
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DESCRIPTION "low level access to audio, keyboard, mouse, joystick, and graphics hardware"
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)
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# Copied from `configure_package_config_file`
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macro(set_and_check _var _file)
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set(${_var} "${_file}")
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if(NOT EXISTS "${_file}")
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message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !")
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endif()
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endmacro()
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# Copied from `configure_package_config_file`
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macro(check_required_components _NAME)
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foreach(comp ${${_NAME}_FIND_COMPONENTS})
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if(NOT ${_NAME}_${comp}_FOUND)
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if(${_NAME}_FIND_REQUIRED_${comp})
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set(${_NAME}_FOUND FALSE)
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endif()
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endif()
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endforeach()
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endmacro()
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set(SDL2_FOUND TRUE)
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# Compute the installation prefix relative to this file.
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set(SDL2_FRAMEWORK_PATH "${CMAKE_CURRENT_LIST_DIR}") # > /SDL2.framework/Resources/CMake/
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" REALPATH) # > /SDL2.framework/Versions/Current/Resources/CMake
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" REALPATH) # > /SDL2.framework/Versions/A/Resources/CMake/
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" PATH) # > /SDL2.framework/Versions/A/Resources/
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" PATH) # > /SDL2.framework/Versions/A/
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" PATH) # > /SDL2.framework/Versions/
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get_filename_component(SDL2_FRAMEWORK_PATH "${SDL2_FRAMEWORK_PATH}" PATH) # > /SDL2.framework/
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get_filename_component(SDL2_FRAMEWORK_PARENT_PATH "${SDL2_FRAMEWORK_PATH}" PATH) # > /
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# For compatibility with autotools sdl2-config.cmake, provide SDL2_* variables.
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set_and_check(SDL2_PREFIX "${SDL2_FRAMEWORK_PATH}")
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set_and_check(SDL2_EXEC_PREFIX "${SDL2_FRAMEWORK_PATH}")
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set_and_check(SDL2_INCLUDE_DIR "${SDL2_FRAMEWORK_PATH}/Headers")
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set(SDL2_INCLUDE_DIRS "${SDL2_INCLUDE_DIR};${SDL2_FRAMEWORK_PATH}")
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set_and_check(SDL2_BINDIR "${SDL2_FRAMEWORK_PATH}")
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set_and_check(SDL2_LIBDIR "${SDL2_FRAMEWORK_PATH}")
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set(SDL2_LIBRARIES "SDL2::SDL2")
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# All targets are created, even when some might not be requested though COMPONENTS.
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# This is done for compatibility with CMake generated SDL2-target.cmake files.
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if(NOT TARGET SDL2::SDL2)
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add_library(SDL2::SDL2 SHARED IMPORTED)
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set_target_properties(SDL2::SDL2
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PROPERTIES
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FRAMEWORK "TRUE"
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IMPORTED_LOCATION "${SDL2_FRAMEWORK_PATH}/Versions/A/SDL2"
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INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}"
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COMPATIBLE_INTERFACE_BOOL "SDL2_SHARED"
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INTERFACE_SDL2_SHARED "ON"
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COMPATIBLE_INTERFACE_STRING "SDL_VERSION"
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INTERFACE_SDL_VERSION "SDL2"
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)
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endif()
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set(SDL2_SDL2_FOUND TRUE)
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if(NOT TARGET SDL2::SDL2main)
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add_library(SDL2::SDL2main INTERFACE IMPORTED)
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endif()
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set(SDL2_SDL2main_FOUND TRUE)
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check_required_components(SDL2)
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