# sdl2 cmake project-config input for ./configure script include(FeatureSummary) set_package_properties(SDL2 PROPERTIES URL "https://www.libsdl.org/" DESCRIPTION "low level access to audio, keyboard, mouse, joystick, and graphics hardware" ) # Copied from `configure_package_config_file` macro(set_and_check _var _file) set(${_var} "${_file}") if(NOT EXISTS "${_file}") message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !") endif() endmacro() get_filename_component(CMAKE_CURRENT_LIST_DIR ${CMAKE_CURRENT_LIST_DIR} REALPATH) get_filename_component(prefix "${CMAKE_CURRENT_LIST_DIR}/@cmake_prefix_relpath@" ABSOLUTE) set(exec_prefix "@exec_prefix@") set(bindir "@bindir@") set(libdir "@libdir@") set(includedir "@includedir@") set_and_check(SDL2_PREFIX "${prefix}") set_and_check(SDL2_EXEC_PREFIX "${exec_prefix}") set_and_check(SDL2_BINDIR "${bindir}") set_and_check(SDL2_INCLUDE_DIR "${includedir}/SDL2") set_and_check(SDL2_LIBDIR "${libdir}") set(SDL2_INCLUDE_DIRS "${includedir};${SDL2_INCLUDE_DIR}") set(SDL2_LIBRARIES SDL2::SDL2) set(SDL2_STATIC_LIBRARIES SDL2::SDL2-static) set(SDL2MAIN_LIBRARY) set(SDL2TEST_LIBRARY SDL2::SDL2test) unset(prefix) unset(exec_prefix) unset(bindir) unset(libdir) unset(includedir) set(_sdl2_libraries_in "@SDL_LIBS@") set(_sdl2_static_private_libs_in "@SDL_STATIC_LIBS@") # Convert _sdl2_libraries to list and keep only libraries + library directories string(REGEX MATCHALL "-[lm]([-a-zA-Z0-9._]+)" _sdl2_libraries "${_sdl2_libraries_in}") string(REGEX REPLACE "^-l" "" _sdl2_libraries "${_sdl2_libraries}") string(REGEX REPLACE ";-l" ";" _sdl2_libraries "${_sdl2_libraries}") string(REGEX MATCHALL "-L([-a-zA-Z0-9._/]+)" _sdl2_libdirs "${_sdl2_libraries_in}") string(REGEX REPLACE "^-L" "" _sdl2_libdirs "${_sdl2_libdirs}") string(REGEX REPLACE ";-L" ";" _sdl2_libdirs "${_sdl2_libdirs}") list(APPEND _sdl2_libdirs "${SDL2_LIBDIR}") # Convert _sdl2_static_private_libs to list and keep only libraries + library directories string(REGEX MATCHALL "(-[lm]([-a-zA-Z0-9._]+))|(-Wl,[^ ]*framework[^ ]*)|(-pthread)" _sdl2_static_private_libs "${_sdl2_static_private_libs_in}") string(REGEX REPLACE "^-l" "" _sdl2_static_private_libs "${_sdl2_static_private_libs}") string(REGEX REPLACE ";-l" ";" _sdl2_static_private_libs "${_sdl2_static_private_libs}") string(REGEX MATCHALL "-L([-a-zA-Z0-9._/]+)" _sdl2_static_private_libdirs "${_sdl2_static_private_libs_in}") string(REGEX REPLACE "^-L" "" _sdl2_static_private_libdirs "${_sdl2_static_private_libdirs}") string(REGEX REPLACE ";-L" ";" _sdl2_static_private_libdirs "${_sdl2_static_private_libdirs}") if(_sdl2_libraries MATCHES ".*SDL2main.*") list(INSERT SDL2_LIBRARIES 0 SDL2::SDL2main) list(INSERT SDL2_STATIC_LIBRARIES 0 SDL2::SDL2main) endif() set(_sdl2main_library ${SDL2_LIBDIR}/libSDL2main.a) if(EXISTS "${_sdl2main_library}") set(SDL2MAIN_LIBRARY SDL2::SDL2main) if(NOT TARGET SDL2::SDL2main) add_library(SDL2::SDL2main STATIC IMPORTED) set_target_properties(SDL2::SDL2main PROPERTIES IMPORTED_LOCATION "${_sdl2main_library}" COMPATIBLE_INTERFACE_STRING "SDL_VERSION" INTERFACE_SDL_VERSION "SDL2" ) if(WIN32) # INTERFACE_LINK_OPTIONS needs CMake 3.13 cmake_minimum_required(VERSION 3.13) # Mark WinMain/WinMain@16 as undefined, such that it will be withheld by the linker. if(CMAKE_SIZEOF_VOID_P EQUAL 4) set_target_properties(SDL2::SDL2main PROPERTIES INTERFACE_LINK_OPTIONS "$<$,EXECUTABLE>:-Wl,--undefined=_WinMain@16>" ) else() set_target_properties(SDL2::SDL2main PROPERTIES INTERFACE_LINK_OPTIONS "$<$,EXECUTABLE>:-Wl,--undefined=WinMain>" ) endif() endif() endif() set(SDL2_SDL2main_FOUND TRUE) else() set(SDL2_SDL2main_FOUND FALSE) endif() unset(_sdl2main_library) # Remove SDL2 since this is the "central" library # Remove SDL2main since this will be provided by SDL2::SDL2main (if available) # Remove mingw32 and cygwin since these are not needed when using `-Wl,--undefined,WinMain` set(_sdl2_link_libraries ${_sdl2_libraries}) list(REMOVE_ITEM _sdl2_link_libraries SDL2 SDL2main mingw32 cygwin) if(WIN32) set(_sdl2_implib "${SDL2_LIBDIR}/libSDL2.dll.a") set(_sdl2_dll "${SDL2_BINDIR}/SDL2.dll") if(EXISTS "${_sdl2_implib}" AND EXISTS "${_sdl2_dll}") if(NOT TARGET SDL2::SDL2) add_library(SDL2::SDL2 SHARED IMPORTED) set_target_properties(SDL2::SDL2 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries}" INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs}" IMPORTED_LINK_INTERFACE_LANGUAGES "C" IMPORTED_IMPLIB "${_sdl2_implib}" IMPORTED_LOCATION "${_sdl2_dll}" COMPATIBLE_INTERFACE_STRING "SDL_VERSION" INTERFACE_SDL_VERSION "SDL2" ) endif() set(SDL2_SDL2_FOUND TRUE) else() set(SDL2_SDL2_FOUND FALSE) endif() unset(_sdl2_implib) unset(_sdl2_dll) else() set(_sdl2_shared "${SDL2_LIBDIR}/libSDL2${CMAKE_SHARED_LIBRARY_SUFFIX}") if(EXISTS "${_sdl2_shared}") if(NOT TARGET SDL2::SDL2) add_library(SDL2::SDL2 SHARED IMPORTED) set_target_properties(SDL2::SDL2 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries}" INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs}" IMPORTED_LINK_INTERFACE_LANGUAGES "C" IMPORTED_LOCATION "${_sdl2_shared}" COMPATIBLE_INTERFACE_STRING "SDL_VERSION" INTERFACE_SDL_VERSION "SDL2" ) endif() set(SDL2_SDL2_FOUND TRUE) else() set(SDL2_SDL2_FOUND FALSE) endif() unset(_sdl2_shared) endif() set(_sdl2_static "${SDL2_LIBDIR}/libSDL2.a") if(EXISTS "${_sdl2_static}") if(NOT TARGET SDL2::SDL2-static) add_library(SDL2::SDL2-static STATIC IMPORTED) set_target_properties(SDL2::SDL2-static PROPERTIES IMPORTED_LOCATION "${_sdl2_static}" INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" INTERFACE_LINK_LIBRARIES "${_sdl2_link_libraries};${_sdl2_static_private_libs}" INTERFACE_LINK_DIRECTORIES "${_sdl2_libdirs};${_sdl2_static_private_libdirs}" IMPORTED_LINK_INTERFACE_LANGUAGES "C" COMPATIBLE_INTERFACE_STRING "SDL_VERSION" INTERFACE_SDL_VERSION "SDL2" ) endif() set(SDL2_SDL2-static_FOUND TRUE) else() set(SDL2_SDL2-static_FOUND FALSE) endif() unset(_sdl2_static) unset(_sdl2_link_libraries) set(_sdl2test_library "${SDL2_LIBDIR}/libSDL2_test.a") if(EXISTS "${_sdl2test_library}") if(NOT TARGET SDL2::SDL2test) add_library(SDL2::SDL2test STATIC IMPORTED) set_target_properties(SDL2::SDL2test PROPERTIES IMPORTED_LOCATION "${_sdl2test_library}" INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}" IMPORTED_LINK_INTERFACE_LANGUAGES "C" COMPATIBLE_INTERFACE_STRING "SDL_VERSION" INTERFACE_SDL_VERSION "SDL2" ) endif() set(SDL2_SDL2test_FOUND TRUE) else() set(SDL2_SDL2test_FOUND FALSE) endif() unset(_sdl2test_library) # Copied from `configure_package_config_file` macro(check_required_components _NAME) foreach(comp ${${_NAME}_FIND_COMPONENTS}) if(NOT ${_NAME}_${comp}_FOUND) if(${_NAME}_FIND_REQUIRED_${comp}) set(${_NAME}_FOUND FALSE) endif() endif() endforeach() endmacro() check_required_components(SDL2) # Create SDL2::SDL2 alias for static-only builds if(TARGET SDL2::SDL2-static AND NOT TARGET SDL2::SDL2) if(CMAKE_VERSION VERSION_LESS "3.18") # FIXME: Aliasing local targets is not supported on CMake < 3.18, so make it global. add_library(SDL2::SDL2 INTERFACE IMPORTED) set_target_properties(SDL2::SDL2 PROPERTIES INTERFACE_LINK_LIBRARIES "SDL2::SDL2-static") else() add_library(SDL2::SDL2 ALIAS SDL2::SDL2-static) endif() endif()