144 lines
5.9 KiB
CMake
144 lines
5.9 KiB
CMake
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# Module: FindSDL2.cmake
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# Based on: https://github.com/mosra/magnum/blob/master/modules/FindSDL2.cmake
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#
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# Exports:
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# SDL2::SDL2 - Imported target
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# SDL2_FOUND - True if SDL2 was found.
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#
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# Additionally these variables are defined for internal usage:
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#
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# SDL2_LIBRARY_DEBUG - SDL2 debug library, if found
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# SDL2_LIBRARY_RELEASE - SDL2 release library, if found
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# SDL2_DLL_DEBUG - SDL2 debug DLL on Windows, if found
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# SDL2_DLL_RELEASE - SDL2 release DLL on Windows, if found
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# SDL2_INCLUDE_DIR - Root include dir
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set(_SDL2_PATH_SUFFIXES SDL2)
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if(WIN32)
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# Precompiled libraries for MSVC are in x86/x64 subdirectories
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if(MSVC)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(_SDL2_LIBRARY_PATH_SUFFIX lib/x64)
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elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
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set(_SDL2_LIBRARY_PATH_SUFFIX lib/x86)
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endif()
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# Both includes and libraries for MinGW are in some directory deep
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# inside. There's also a CMake config file but it has HARDCODED path
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# to /opt/local/i686-w64-mingw32, which doesn't make ANY SENSE,
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# especially on Windows.
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elseif(MINGW)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(_SDL2_LIBRARY_PATH_SUFFIX x86_64-w64-mingw32/lib)
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set(_SDL2_RUNTIME_PATH_SUFFIX x86_64-w64-mingw32/bin)
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list(APPEND _SDL2_PATH_SUFFIXES x86_64-w64-mingw32/include/SDL2)
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elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
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set(_SDL2_LIBRARY_PATH_SUFFIX i686-w64-mingw32/lib)
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set(_SDL2_RUNTIME_PATH_SUFFIX i686-w64-mingw32/lib)
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list(APPEND _SDL2_PATH_SUFFIXES i686-w64-mingw32/include/SDL2)
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endif()
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else()
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message(FATAL_ERROR "Unsupported compiler")
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endif()
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endif()
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find_library(SDL2_LIBRARY_RELEASE
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NAMES SDL2-2.0 SDL2
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PATH_SUFFIXES ${_SDL2_LIBRARY_PATH_SUFFIX})
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find_library(SDL2_LIBRARY_DEBUG
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NAMES SDL2d
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PATH_SUFFIXES ${_SDL2_LIBRARY_PATH_SUFFIX})
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set(SDL2_LIBRARY_NEEDED SDL2_LIBRARY)
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include(SelectLibraryConfigurations)
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select_library_configurations(SDL2)
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# Include dir
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find_path(SDL2_INCLUDE_DIR
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# We must search file which is present only in SDL2 and not in SDL1.
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# Apparently when both SDL.h and SDL_scancode.h are specified, CMake is
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# happy enough that it found SDL.h and doesn't bother about the other.
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#
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# On macOS, where the includes are not in SDL2/SDL.h form (which would
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# solve this issue), but rather SDL2.framework/Headers/SDL.h, CMake might
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# find SDL.framework/Headers/SDL.h if SDL1 is installed, which is wrong.
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NAMES SDL_scancode.h
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PATH_SUFFIXES ${_SDL2_PATH_SUFFIXES})
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if(WIN32)
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find_file(SDL2_DLL_RELEASE
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NAMES SDL2.dll
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PATH_SUFFIXES ${_SDL2_RUNTIME_PATH_SUFFIX} ${_SDL2_LIBRARY_PATH_SUFFIX})
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find_file(SDL2_DLL_DEBUG
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NAMES SDL2d.dll
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PATH_SUFFIXES ${_SDL2_RUNTIME_PATH_SUFFIX} ${_SDL2_LIBRARY_PATH_SUFFIX})
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args("SDL2" DEFAULT_MSG
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${SDL2_LIBRARY_NEEDED}
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${_SDL2_FRAMEWORK_LIBRARY_NAMES}
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SDL2_INCLUDE_DIR)
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if(NOT TARGET SDL2::SDL2)
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if(SDL2_LIBRARY_NEEDED)
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add_library(SDL2::SDL2 UNKNOWN IMPORTED)
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# Work around BUGGY framework support on macOS
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# https://cmake.org/Bug/view.php?id=14105
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if(APPLE AND SDL2_LIBRARY_RELEASE MATCHES "\\.framework$")
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_property(TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_RELEASE ${SDL2_LIBRARY_RELEASE}/SDL2)
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else()
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if(SDL2_LIBRARY_RELEASE)
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
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set_property(TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_RELEASE ${SDL2_LIBRARY_RELEASE})
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endif()
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if(SDL2_LIBRARY_DEBUG)
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
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set_property(TARGET SDL2::SDL2 PROPERTY IMPORTED_LOCATION_DEBUG ${SDL2_LIBRARY_DEBUG})
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endif()
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endif()
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# Link additional `dl` and `pthread` libraries required by a static
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# build of SDL on Unixy platforms (except Apple, where it is most
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# probably some frameworks instead)
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if(UNIX AND NOT APPLE AND (SDL2_LIBRARY_DEBUG MATCHES "${CMAKE_STATIC_LIBRARY_SUFFIX}$" OR SDL2_LIBRARY_RELEASE MATCHES "${CMAKE_STATIC_LIBRARY_SUFFIX}$"))
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find_package(Threads REQUIRED)
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY
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INTERFACE_LINK_LIBRARIES Threads::Threads ${CMAKE_DL_LIBS})
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endif()
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# Windows dependencies for a static library. Unfortunately there's no
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# easy way to figure out if a *.lib is static or dynamic, so we're
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# adding only if a DLL is not found.
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if(WIN32 AND NOT SDL2_DLL_RELEASE AND NOT SDL2_DLL_DEBUG)
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY INTERFACE_LINK_LIBRARIES
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# https://github.com/SDL-mirror/SDL/blob/release-2.0.10/CMakeLists.txt#L1338
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user32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 setupapi shell32
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# https://github.com/SDL-mirror/SDL/blob/release-2.0.10/CMakeLists.txt#L1384
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dinput8)
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# https://github.com/SDL-mirror/SDL/blob/release-2.0.10/CMakeLists.txt#L1422
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# additionally has dxerr for MSVC if DirectX SDK is not used, but
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# according to https://walbourn.github.io/wheres-dxerr-lib/ this
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# thing is long deprecated.
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if(MINGW)
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set_property(TARGET SDL2::SDL2 APPEND PROPERTY INTERFACE_LINK_LIBRARIES
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# https://github.com/SDL-mirror/SDL/blob/release-2.0.10/CMakeLists.txt#L1386
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dxerr8
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# https://github.com/SDL-mirror/SDL/blob/release-2.0.10/CMakeLists.txt#L1388
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mingw32)
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endif()
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endif()
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else()
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add_library(SDL2::SDL2 INTERFACE IMPORTED)
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endif()
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set_property(TARGET SDL2::SDL2 PROPERTY
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INTERFACE_INCLUDE_DIRECTORIES ${SDL2_INCLUDE_DIR})
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endif()
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mark_as_advanced(SDL2_INCLUDE_DIR)
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