cmake_minimum_required(VERSION 3.0...3.20 FATAL_ERROR) project(GLFW VERSION 3.3.9 LANGUAGES C) if (POLICY CMP0054) cmake_policy(SET CMP0054 NEW) endif() if (POLICY CMP0069) cmake_policy(SET CMP0069 NEW) endif() if (POLICY CMP0077) cmake_policy(SET CMP0077 NEW) endif() set_property(GLOBAL PROPERTY USE_FOLDERS ON) option(BUILD_SHARED_LIBS "Build shared libraries" OFF) option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" ON) option(GLFW_BUILD_TESTS "Build the GLFW test programs" ON) option(GLFW_BUILD_DOCS "Build the GLFW documentation" ON) option(GLFW_INSTALL "Generate installation target" ON) option(GLFW_VULKAN_STATIC "Assume the Vulkan loader is linked with the application" OFF) include(GNUInstallDirs) include(CMakeDependentOption) cmake_dependent_option(GLFW_USE_OSMESA "Use OSMesa for offscreen context creation" OFF "UNIX" OFF) cmake_dependent_option(GLFW_USE_HYBRID_HPG "Force use of high-performance GPU on hybrid systems" OFF "WIN32" OFF) cmake_dependent_option(GLFW_USE_WAYLAND "Use Wayland for window creation" OFF "UNIX;NOT APPLE" OFF) cmake_dependent_option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON "MSVC" OFF) if (BUILD_SHARED_LIBS) set(_GLFW_BUILD_DLL 1) endif() if (BUILD_SHARED_LIBS AND UNIX) # On Unix-like systems, shared libraries can use the soname system. set(GLFW_LIB_NAME glfw) else() set(GLFW_LIB_NAME glfw3) endif() set(GLFW_LIB_NAME_SUFFIX "") if (GLFW_VULKAN_STATIC) if (BUILD_SHARED_LIBS) # If you absolutely must do this, remove this line and add the Vulkan # loader static library via the CMAKE_SHARED_LINKER_FLAGS message(FATAL_ERROR "You are trying to link the Vulkan loader static library into the GLFW shared library") endif() set(_GLFW_VULKAN_STATIC 1) endif() list(APPEND CMAKE_MODULE_PATH "${GLFW_SOURCE_DIR}/CMake/modules") find_package(Threads REQUIRED) if (GLFW_BUILD_DOCS) set(DOXYGEN_SKIP_DOT TRUE) find_package(Doxygen) endif() #-------------------------------------------------------------------- # Apply Microsoft C runtime library option # This is here because it also applies to tests and examples #-------------------------------------------------------------------- if (MSVC) if (MSVC90) # Workaround for VS 2008 not shipping with the DirectX 9 SDK include(CheckIncludeFile) check_include_file(dinput.h DINPUT_H_FOUND) if (NOT DINPUT_H_FOUND) message(FATAL_ERROR "DirectX 9 headers not found; install DirectX 9 SDK") endif() # Workaround for VS 2008 not shipping with stdint.h list(APPEND glfw_INCLUDE_DIRS "${GLFW_SOURCE_DIR}/deps/vs2008") endif() endif() if (MSVC AND NOT USE_MSVC_RUNTIME_LIBRARY_DLL) if (CMAKE_VERSION VERSION_LESS 3.15) foreach (flag CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO) if (flag MATCHES "/MD") string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}") endif() if (flag MATCHES "/MDd") string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}") endif() endforeach() else() set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$:Debug>") endif() endif() if (MINGW) # Workaround for legacy MinGW not providing XInput and DirectInput include(CheckIncludeFile) check_include_file(dinput.h DINPUT_H_FOUND) check_include_file(xinput.h XINPUT_H_FOUND) if (NOT DINPUT_H_FOUND OR NOT XINPUT_H_FOUND) list(APPEND glfw_INCLUDE_DIRS "${GLFW_SOURCE_DIR}/deps/mingw") endif() # Enable link-time exploit mitigation features enabled by default on MSVC include(CheckCCompilerFlag) # Compatibility with data execution prevention (DEP) set(CMAKE_REQUIRED_FLAGS "-Wl,--nxcompat") check_c_compiler_flag("" _GLFW_HAS_DEP) if (_GLFW_HAS_DEP) set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--nxcompat ${CMAKE_SHARED_LINKER_FLAGS}") endif() # Compatibility with address space layout randomization (ASLR) set(CMAKE_REQUIRED_FLAGS "-Wl,--dynamicbase") check_c_compiler_flag("" _GLFW_HAS_ASLR) if (_GLFW_HAS_ASLR) set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--dynamicbase ${CMAKE_SHARED_LINKER_FLAGS}") endif() # Compatibility with 64-bit address space layout randomization (ASLR) set(CMAKE_REQUIRED_FLAGS "-Wl,--high-entropy-va") check_c_compiler_flag("" _GLFW_HAS_64ASLR) if (_GLFW_HAS_64ASLR) set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--high-entropy-va ${CMAKE_SHARED_LINKER_FLAGS}") endif() # Clear flags again to avoid breaking later tests set(CMAKE_REQUIRED_FLAGS) endif() #-------------------------------------------------------------------- # Detect and select backend APIs #-------------------------------------------------------------------- if (GLFW_USE_WAYLAND) set(_GLFW_WAYLAND 1) message(STATUS "Using Wayland for window creation") elseif (GLFW_USE_OSMESA) set(_GLFW_OSMESA 1) message(STATUS "Using OSMesa for headless context creation") elseif (WIN32) set(_GLFW_WIN32 1) message(STATUS "Using Win32 for window creation") elseif (APPLE) set(_GLFW_COCOA 1) message(STATUS "Using Cocoa for window creation") elseif (UNIX) set(_GLFW_X11 1) message(STATUS "Using X11 for window creation") else() message(FATAL_ERROR "No supported platform was detected") endif() #-------------------------------------------------------------------- # Find and add Unix math and time libraries #-------------------------------------------------------------------- if (UNIX AND NOT APPLE) find_library(RT_LIBRARY rt) mark_as_advanced(RT_LIBRARY) if (RT_LIBRARY) list(APPEND glfw_LIBRARIES "${RT_LIBRARY}") list(APPEND glfw_PKG_LIBS "-lrt") endif() find_library(MATH_LIBRARY m) mark_as_advanced(MATH_LIBRARY) if (MATH_LIBRARY) list(APPEND glfw_LIBRARIES "${MATH_LIBRARY}") list(APPEND glfw_PKG_LIBS "-lm") endif() if (CMAKE_DL_LIBS) list(APPEND glfw_LIBRARIES "${CMAKE_DL_LIBS}") list(APPEND glfw_PKG_LIBS "-l${CMAKE_DL_LIBS}") endif() endif() #-------------------------------------------------------------------- # Use Win32 for window creation #-------------------------------------------------------------------- if (_GLFW_WIN32) list(APPEND glfw_PKG_LIBS "-lgdi32") if (GLFW_USE_HYBRID_HPG) set(_GLFW_USE_HYBRID_HPG 1) endif() if (BUILD_SHARED_LIBS) set (GLFW_LIB_NAME_SUFFIX "dll") endif() endif() #-------------------------------------------------------------------- # Use X11 for window creation #-------------------------------------------------------------------- if (_GLFW_X11) find_package(X11 REQUIRED) list(APPEND glfw_PKG_DEPS "x11") # Set up library and include paths list(APPEND glfw_INCLUDE_DIRS "${X11_X11_INCLUDE_PATH}") list(APPEND glfw_LIBRARIES "${X11_X11_LIB}" "${CMAKE_THREAD_LIBS_INIT}") # Check for XRandR (modern resolution switching and gamma control) if (NOT X11_Xrandr_INCLUDE_PATH) message(FATAL_ERROR "RandR headers not found; install libxrandr development package") endif() # Check for Xinerama (legacy multi-monitor support) if (NOT X11_Xinerama_INCLUDE_PATH) message(FATAL_ERROR "Xinerama headers not found; install libxinerama development package") endif() # Check for Xkb (X keyboard extension) if (NOT X11_Xkb_INCLUDE_PATH) message(FATAL_ERROR "XKB headers not found; install X11 development package") endif() # Check for Xcursor (cursor creation from RGBA images) if (NOT X11_Xcursor_INCLUDE_PATH) message(FATAL_ERROR "Xcursor headers not found; install libxcursor development package") endif() # Check for XInput (modern HID input) if (NOT X11_Xi_INCLUDE_PATH) message(FATAL_ERROR "XInput headers not found; install libxi development package") endif() list(APPEND glfw_INCLUDE_DIRS "${X11_Xrandr_INCLUDE_PATH}" "${X11_Xinerama_INCLUDE_PATH}" "${X11_Xkb_INCLUDE_PATH}" "${X11_Xcursor_INCLUDE_PATH}" "${X11_Xi_INCLUDE_PATH}") endif() #-------------------------------------------------------------------- # Use Wayland for window creation #-------------------------------------------------------------------- if (_GLFW_WAYLAND) find_package(ECM REQUIRED NO_MODULE) list(APPEND CMAKE_MODULE_PATH "${ECM_MODULE_PATH}") find_package(Wayland REQUIRED Client Cursor Egl) find_package(WaylandScanner REQUIRED) find_package(WaylandProtocols 1.15 REQUIRED) list(APPEND glfw_PKG_DEPS "wayland-client") list(APPEND glfw_INCLUDE_DIRS "${Wayland_INCLUDE_DIRS}") list(APPEND glfw_LIBRARIES "${Wayland_LIBRARIES}" "${CMAKE_THREAD_LIBS_INIT}") find_package(XKBCommon REQUIRED) list(APPEND glfw_INCLUDE_DIRS "${XKBCOMMON_INCLUDE_DIRS}") include(CheckIncludeFiles) include(CheckFunctionExists) check_function_exists(memfd_create HAVE_MEMFD_CREATE) if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux") find_package(EpollShim) if (EPOLLSHIM_FOUND) list(APPEND glfw_INCLUDE_DIRS "${EPOLLSHIM_INCLUDE_DIRS}") list(APPEND glfw_LIBRARIES "${EPOLLSHIM_LIBRARIES}") endif() endif() endif() #-------------------------------------------------------------------- # Use OSMesa for offscreen context creation #-------------------------------------------------------------------- if (_GLFW_OSMESA) find_package(OSMesa REQUIRED) list(APPEND glfw_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}") endif() #-------------------------------------------------------------------- # Use Cocoa for window creation and NSOpenGL for context creation #-------------------------------------------------------------------- if (_GLFW_COCOA) list(APPEND glfw_LIBRARIES "-framework Cocoa" "-framework IOKit" "-framework CoreFoundation") set(glfw_PKG_DEPS "") set(glfw_PKG_LIBS "-framework Cocoa -framework IOKit -framework CoreFoundation") endif() #-------------------------------------------------------------------- # Add the Vulkan loader as a dependency if necessary #-------------------------------------------------------------------- if (GLFW_VULKAN_STATIC) list(APPEND glfw_PKG_DEPS "vulkan") endif() #-------------------------------------------------------------------- # Export GLFW library dependencies #-------------------------------------------------------------------- foreach(arg ${glfw_PKG_DEPS}) set(GLFW_PKG_DEPS "${GLFW_PKG_DEPS} ${arg}") endforeach() foreach(arg ${glfw_PKG_LIBS}) set(GLFW_PKG_LIBS "${GLFW_PKG_LIBS} ${arg}") endforeach() #-------------------------------------------------------------------- # Create generated files #-------------------------------------------------------------------- include(CMakePackageConfigHelpers) set(GLFW_CONFIG_PATH "${CMAKE_INSTALL_LIBDIR}/cmake/glfw3") configure_package_config_file(src/glfw3Config.cmake.in src/glfw3Config.cmake INSTALL_DESTINATION "${GLFW_CONFIG_PATH}" NO_CHECK_REQUIRED_COMPONENTS_MACRO) write_basic_package_version_file(src/glfw3ConfigVersion.cmake VERSION ${GLFW_VERSION} COMPATIBILITY SameMajorVersion) configure_file(src/glfw_config.h.in src/glfw_config.h @ONLY) configure_file(src/glfw3.pc.in src/glfw3.pc @ONLY) #-------------------------------------------------------------------- # Add subdirectories #-------------------------------------------------------------------- add_subdirectory(src) if (GLFW_BUILD_EXAMPLES) add_subdirectory(examples) endif() if (GLFW_BUILD_TESTS) add_subdirectory(tests) endif() if (DOXYGEN_FOUND AND GLFW_BUILD_DOCS) add_subdirectory(docs) endif() #-------------------------------------------------------------------- # Install files other than the library # The library is installed by src/CMakeLists.txt #-------------------------------------------------------------------- if (GLFW_INSTALL) install(DIRECTORY include/GLFW DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} FILES_MATCHING PATTERN glfw3.h PATTERN glfw3native.h) install(FILES "${GLFW_BINARY_DIR}/src/glfw3Config.cmake" "${GLFW_BINARY_DIR}/src/glfw3ConfigVersion.cmake" DESTINATION "${GLFW_CONFIG_PATH}") install(EXPORT glfwTargets FILE glfw3Targets.cmake EXPORT_LINK_INTERFACE_LIBRARIES DESTINATION "${GLFW_CONFIG_PATH}") install(FILES "${GLFW_BINARY_DIR}/src/glfw3.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig") # Only generate this target if no higher-level project already has if (NOT TARGET uninstall) configure_file(cmake_uninstall.cmake.in cmake_uninstall.cmake IMMEDIATE @ONLY) add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${GLFW_BINARY_DIR}/cmake_uninstall.cmake") set_target_properties(uninstall PROPERTIES FOLDER "GLFW3") endif() endif()