project(GLFW C) cmake_minimum_required(VERSION 2.8.9) if (CMAKE_VERSION VERSION_EQUAL "3.0" OR CMAKE_VERSION VERSION_GREATER "3.0") # Until all major package systems have moved to CMake 3, # we stick with the older INSTALL_NAME_DIR mechanism cmake_policy(SET CMP0042 OLD) endif() set(GLFW_VERSION_MAJOR "3") set(GLFW_VERSION_MINOR "1") set(GLFW_VERSION_PATCH "0") set(GLFW_VERSION_EXTRA "") set(GLFW_VERSION "${GLFW_VERSION_MAJOR}.${GLFW_VERSION_MINOR}") set(GLFW_VERSION_FULL "${GLFW_VERSION}.${GLFW_VERSION_PATCH}${GLFW_VERSION_EXTRA}") set(LIB_SUFFIX "" CACHE STRING "Takes an empty string or 64. Directory where lib will be installed: lib or lib64") option(BUILD_SHARED_LIBS "Build shared libraries" OFF) option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" ON) option(GLFW_BUILD_TESTS "Build the GLFW test programs" ON) option(GLFW_BUILD_DOCS "Build the GLFW documentation" ON) option(GLFW_INSTALL "Generate installation target" ON) option(GLFW_DOCUMENT_INTERNALS "Include internals in documentation" OFF) if (WIN32) option(GLFW_USE_DWM_SWAP_INTERVAL "Set swap interval even when DWM compositing is enabled" OFF) option(GLFW_USE_OPTIMUS_HPG "Force use of high-performance GPU on Optimus systems" OFF) endif() if (APPLE) option(GLFW_BUILD_UNIVERSAL "Build GLFW as a Universal Binary" OFF) option(GLFW_USE_CHDIR "Make glfwInit chdir to Contents/Resources" ON) option(GLFW_USE_MENUBAR "Populate the menu bar on first window creation" ON) option(GLFW_USE_RETINA "Use the full resolution of Retina displays" ON) else() option(GLFW_USE_EGL "Use EGL for context creation" OFF) endif() if (UNIX AND NOT APPLE) option(GLFW_USE_WAYLAND "Use Wayland for context creation (implies EGL as well)" OFF) option(GLFW_USE_MIR "Use Mir for context creation (implies EGL as well)" OFF) endif() if (MSVC) option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON) endif() if (BUILD_SHARED_LIBS) set(_GLFW_BUILD_DLL 1) endif() if (GLFW_USE_WAYLAND) set(GLFW_USE_EGL ON) elseif (GLFW_USE_MIR) set(GLFW_USE_EGL ON) endif() if (GLFW_USE_EGL) set(GLFW_CLIENT_LIBRARY "opengl" CACHE STRING "The client library to use; one of opengl, glesv1 or glesv2") if (${GLFW_CLIENT_LIBRARY} STREQUAL "opengl") set(_GLFW_USE_OPENGL 1) elseif (${GLFW_CLIENT_LIBRARY} STREQUAL "glesv1") set(_GLFW_USE_GLESV1 1) elseif (${GLFW_CLIENT_LIBRARY} STREQUAL "glesv2") set(_GLFW_USE_GLESV2 1) else() message(FATAL_ERROR "Unsupported client library") endif() set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMake/modules") find_package(EGL REQUIRED) if (NOT _GLFW_USE_OPENGL) set(GLFW_BUILD_EXAMPLES OFF) set(GLFW_BUILD_TESTS OFF) message(STATUS "NOTE: Examples and tests require OpenGL") endif() else() set(_GLFW_USE_OPENGL 1) endif() if (_GLFW_USE_OPENGL) find_package(OpenGL REQUIRED) elseif (_GLFW_USE_GLESV1) find_package(GLESv1 REQUIRED) elseif (_GLFW_USE_GLESV2) find_package(GLESv2 REQUIRED) endif() find_package(Threads REQUIRED) if (GLFW_BUILD_DOCS) set(DOXYGEN_SKIP_DOT TRUE) find_package(Doxygen) if (GLFW_DOCUMENT_INTERNALS) set(GLFW_INTERNAL_DOCS "${GLFW_SOURCE_DIR}/src/internal.h ${GLFW_SOURCE_DIR}/docs/internal.dox") endif() endif() #-------------------------------------------------------------------- # Set compiler specific flags #-------------------------------------------------------------------- if (UNIX) add_definitions(-Wall) if (BUILD_SHARED_LIBS) add_definitions(-fvisibility=hidden) endif() endif() if (MSVC) add_definitions(-D_CRT_SECURE_NO_WARNINGS) if (NOT USE_MSVC_RUNTIME_LIBRARY_DLL) foreach (flag CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO) if (${flag} MATCHES "/MD") string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}") endif() if (${flag} MATCHES "/MDd") string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}") endif() endforeach() endif() endif() if (MINGW) # 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 ${CMAKE_SHARED_LINKER_FLAGS}") endif() endif() #-------------------------------------------------------------------- # Detect and select backend APIs #-------------------------------------------------------------------- if (WIN32) set(_GLFW_WIN32 1) message(STATUS "Using Win32 for window creation") if (GLFW_USE_EGL) set(_GLFW_EGL 1) message(STATUS "Using EGL for context creation") else() set(_GLFW_WGL 1) message(STATUS "Using WGL for context creation") endif() elseif (APPLE) set(_GLFW_COCOA 1) message(STATUS "Using Cocoa for window creation") set(_GLFW_NSGL 1) message(STATUS "Using NSGL for context creation") elseif (UNIX) if (GLFW_USE_WAYLAND) set(_GLFW_WAYLAND 1) message(STATUS "Using Wayland for window creation") elseif (GLFW_USE_MIR) set(_GLFW_MIR 1) message(STATUS "Using Mir for window creation") else() set(_GLFW_X11 1) message(STATUS "Using X11 for window creation") endif() if (GLFW_USE_EGL) set(_GLFW_EGL 1) message(STATUS "Using EGL for context creation") else() set(_GLFW_GLX 1) message(STATUS "Using GLX for context creation") endif() else() message(FATAL_ERROR "No supported platform was detected") endif() #-------------------------------------------------------------------- # Use Win32 for window creation #-------------------------------------------------------------------- if (_GLFW_WIN32) list(APPEND glfw_PKG_LIBS "-lgdi32") if (GLFW_USE_DWM_SWAP_INTERVAL) set(_GLFW_USE_DWM_SWAP_INTERVAL 1) endif() if (GLFW_USE_OPTIMUS_HPG) set(_GLFW_USE_OPTIMUS_HPG 1) endif() # HACK: When building on MinGW, WINVER and UNICODE need to be defined before # the inclusion of stddef.h (by glfw3.h), which is itself included before # win32_platform.h. We define them here until a saner solution can be found # NOTE: MinGW-w64 and Visual C++ do /not/ need this hack. if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU") add_definitions(-DUNICODE -DWINVER=0x0501) endif() endif() #-------------------------------------------------------------------- # Use WGL for context creation #-------------------------------------------------------------------- if (_GLFW_WGL) list(APPEND glfw_PKG_LIBS "-lopengl32") list(APPEND glfw_INCLUDE_DIRS "${OPENGL_INCLUDE_DIR}") list(APPEND glfw_LIBRARIES "${OPENGL_gl_LIBRARY}") 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}" "${CMAKE_THREAD_LIBS_INIT}") if (UNIX AND NOT APPLE) list(APPEND glfw_LIBRARIES "${RT_LIBRARY}") endif() # Check for XRandR (modern resolution switching and gamma control) if (NOT X11_Xrandr_FOUND) message(FATAL_ERROR "The RandR library and headers were not found") endif() list(APPEND glfw_INCLUDE_DIRS "${X11_Xrandr_INCLUDE_PATH}") list(APPEND glfw_LIBRARIES "${X11_Xrandr_LIB}") list(APPEND glfw_PKG_DEPS "xrandr") # Check for Xinerama (legacy multi-monitor support) if (NOT X11_Xinerama_FOUND) message(FATAL_ERROR "The Xinerama library and headers were not found") endif() list(APPEND glfw_INCLUDE_DIRS "${X11_Xinerama_INCLUDE_PATH}") list(APPEND glfw_LIBRARIES "${X11_Xinerama_LIB}") list(APPEND glfw_PKG_DEPS "xinerama") # Check for XInput (high-resolution cursor motion) if (NOT X11_Xinput_FOUND) message(FATAL_ERROR "The XInput library and headers were not found") endif() list(APPEND glfw_INCLUDE_DIRS "${X11_Xinput_INCLUDE_PATH}") if (X11_Xinput_LIB) list(APPEND glfw_LIBRARIES "${X11_Xinput_LIB}") else() # Backwards compatibility (bug in CMake 2.8.7) list(APPEND glfw_LIBRARIES Xi) endif() list(APPEND glfw_PKG_DEPS "xi") # Check for Xf86VidMode (fallback gamma control) if (NOT X11_xf86vmode_FOUND) message(FATAL_ERROR "The Xf86VidMode library and headers were not found") endif() list(APPEND glfw_INCLUDE_DIRS "${X11_xf86vmode_INCLUDE_PATH}") list(APPEND glfw_PKG_DEPS "xxf86vm") if (X11_Xxf86vm_LIB) list(APPEND glfw_LIBRARIES "${X11_Xxf86vm_LIB}") else() # Backwards compatibility (see CMake bug 0006976) list(APPEND glfw_LIBRARIES Xxf86vm) endif() # Check for Xkb (X keyboard extension) if (NOT X11_Xkb_FOUND) message(FATAL_ERROR "The X keyboard extension headers were not found") endif() list(APPEND glfw_INCLUDE_DIR "${X11_Xkb_INCLUDE_PATH}") find_library(RT_LIBRARY rt) mark_as_advanced(RT_LIBRARY) if (RT_LIBRARY) list(APPEND glfw_LIBRARIES "${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 "${MATH_LIBRARY}") list(APPEND glfw_PKG_LIBS "-lm") endif() # Check for Xcursor if (NOT X11_Xcursor_FOUND) message(FATAL_ERROR "The Xcursor libraries and headers were not found") endif() list(APPEND glfw_INCLUDE_DIR "${X11_Xcursor_INCLUDE_PATH}") list(APPEND glfw_LIBRARIES "${X11_Xcursor_LIB}") list(APPEND glfw_PKG_DEPS "xcursor") endif() #-------------------------------------------------------------------- # Use Wayland for window creation #-------------------------------------------------------------------- if (_GLFW_WAYLAND) find_package(Wayland REQUIRED) list(APPEND glfw_PKG_DEPS "wayland-egl") list(APPEND glfw_INCLUDE_DIRS "${WAYLAND_INCLUDE_DIR}") list(APPEND glfw_LIBRARIES "${WAYLAND_LIBRARIES}" "${CMAKE_THREAD_LIBS_INIT}") find_package(XKBCommon REQUIRED) list(APPEND glfw_PKG_DEPS "xkbcommon") list(APPEND glfw_INCLUDE_DIRS "${XKBCOMMON_INCLUDE_DIRS}") list(APPEND glfw_LIBRARIES "${XKBCOMMON_LIBRARY}") find_library(MATH_LIBRARY m) mark_as_advanced(MATH_LIBRARY) if (MATH_LIBRARY) list(APPEND glfw_LIBRARIES "${MATH_LIBRARY}") list(APPEND glfw_PKG_LIBS "-lm") endif() endif() #-------------------------------------------------------------------- # Use Mir for window creation #-------------------------------------------------------------------- if (_GLFW_MIR) find_package(Mir REQUIRED) list(APPEND glfw_PKG_DEPS "mirclient") list(APPEND glfw_INCLUDE_DIRS "${MIR_INCLUDE_DIR}") list(APPEND glfw_LIBRARIES "${MIR_LIBRARIES}" "${CMAKE_THREAD_LIBS_INIT}") find_package(XKBCommon REQUIRED) list(APPEND glfw_PKG_DEPS "xkbcommon") list(APPEND glfw_INCLUDE_DIRS "${XKBCOMMON_INCLUDE_DIRS}") list(APPEND glfw_LIBRARIES "${XKBCOMMON_LIBRARY}") find_library(MATH_LIBRARY m) mark_as_advanced(MATH_LIBRARY) if (MATH_LIBRARY) list(APPEND glfw_LIBRARIES "${MATH_LIBRARY}") list(APPEND glfw_PKG_LIBS "-lm") endif() endif() #-------------------------------------------------------------------- # Use GLX for context creation #-------------------------------------------------------------------- if (_GLFW_GLX) list(APPEND glfw_INCLUDE_DIRS "${OPENGL_INCLUDE_DIR}") list(APPEND glfw_LIBRARIES "${OPENGL_gl_LIBRARY}") list(APPEND glfw_PKG_DEPS "gl") include(CheckFunctionExists) set(CMAKE_REQUIRED_LIBRARIES "${OPENGL_gl_LIBRARY}") check_function_exists(glXGetProcAddress _GLFW_HAS_GLXGETPROCADDRESS) check_function_exists(glXGetProcAddressARB _GLFW_HAS_GLXGETPROCADDRESSARB) check_function_exists(glXGetProcAddressEXT _GLFW_HAS_GLXGETPROCADDRESSEXT) if (NOT _GLFW_HAS_GLXGETPROCADDRESS AND NOT _GLFW_HAS_GLXGETPROCADDRESSARB AND NOT _GLFW_HAS_GLXGETPROCADDRESSEXT) message(WARNING "No glXGetProcAddressXXX variant found") # Check for dlopen support as a fallback set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_DL_LIBS}") check_function_exists(dlopen _GLFW_HAS_DLOPEN) if (NOT _GLFW_HAS_DLOPEN) message(FATAL_ERROR "No entry point retrieval mechanism found") endif() if (CMAKE_DL_LIBS) list(APPEND glfw_LIBRARIES "${CMAKE_DL_LIBS}") list(APPEND glfw_PKG_LIBS "-l${CMAKE_DL_LIBS}") endif() endif() endif() #-------------------------------------------------------------------- # Use EGL for context creation #-------------------------------------------------------------------- if (_GLFW_EGL) list(APPEND glfw_INCLUDE_DIRS "${EGL_INCLUDE_DIR}") list(APPEND glfw_LIBRARIES "${EGL_LIBRARY}") list(APPEND glfw_PKG_DEPS "egl") if (_GLFW_USE_OPENGL) list(APPEND glfw_LIBRARIES "${OPENGL_gl_LIBRARY}") list(APPEND glfw_INCLUDE_DIRS "${OPENGL_INCLUDE_DIR}") list(APPEND glfw_PKG_DEPS "gl") elseif (_GLFW_USE_GLESV1) list(APPEND glfw_LIBRARIES "${GLESv1_LIBRARY}") list(APPEND glfw_INCLUDE_DIRS "${GLESv1_INCLUDE_DIR}") list(APPEND glfw_PKG_DEPS "glesv1_cm") elseif (_GLFW_USE_GLESV2) list(APPEND glfw_LIBRARIES "${GLESv2_LIBRARY}") list(APPEND glfw_INCLUDE_DIRS "${GLESv2_INCLUDE_DIR}") list(APPEND glfw_PKG_DEPS "glesv2") endif() endif() #-------------------------------------------------------------------- # Use Cocoa for window creation and NSOpenGL for context creation #-------------------------------------------------------------------- if (_GLFW_COCOA AND _GLFW_NSGL) if (GLFW_USE_MENUBAR) set(_GLFW_USE_MENUBAR 1) endif() if (GLFW_USE_CHDIR) set(_GLFW_USE_CHDIR 1) endif() if (GLFW_USE_RETINA) set(_GLFW_USE_RETINA 1) endif() if (GLFW_BUILD_UNIVERSAL) message(STATUS "Building GLFW as Universal Binaries") set(CMAKE_OSX_ARCHITECTURES i386;x86_64) else() message(STATUS "Building GLFW only for the native architecture") endif() # Set up library and include paths find_library(COCOA_FRAMEWORK Cocoa) find_library(IOKIT_FRAMEWORK IOKit) find_library(CORE_FOUNDATION_FRAMEWORK CoreFoundation) find_library(CORE_VIDEO_FRAMEWORK CoreVideo) mark_as_advanced(COCOA_FRAMEWORK IOKIT_FRAMEWORK CORE_FOUNDATION_FRAMEWORK CORE_VIDEO_FRAMEWORK) list(APPEND glfw_LIBRARIES "${COCOA_FRAMEWORK}" "${OPENGL_gl_LIBRARY}" "${IOKIT_FRAMEWORK}" "${CORE_FOUNDATION_FRAMEWORK}" "${CORE_VIDEO_FRAMEWORK}") set(glfw_PKG_DEPS "") set(glfw_PKG_LIBS "-framework Cocoa -framework OpenGL -framework IOKit -framework CoreFoundation -framework CoreVideo") endif() #-------------------------------------------------------------------- # Export GLFW library dependencies #-------------------------------------------------------------------- set(GLFW_LIBRARIES ${glfw_LIBRARIES} CACHE STRING "Dependencies of GLFW") 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} ${arg}") endforeach() #-------------------------------------------------------------------- # Choose library output name #-------------------------------------------------------------------- if (BUILD_SHARED_LIBS AND UNIX) # On Unix-like systems, shared libraries can use the soname system. set(GLFW_LIB_NAME glfw) else() set(GLFW_LIB_NAME glfw3) endif() #-------------------------------------------------------------------- # Create generated files #-------------------------------------------------------------------- include(CMakePackageConfigHelpers) if (UNIX) set(GLFW_CONFIG_PATH "${CMAKE_INSTALL_PREFIX}/lib/cmake/glfw3/") else() set(GLFW_CONFIG_PATH "${CMAKE_INSTALL_PREFIX}/") endif() configure_package_config_file("${GLFW_SOURCE_DIR}/src/glfw3Config.cmake.in" "${GLFW_BINARY_DIR}/src/glfw3Config.cmake" INSTALL_DESTINATION "${GLFW_CONFIG_PATH}" PATH_VARS CMAKE_INSTALL_PREFIX NO_CHECK_REQUIRED_COMPONENTS_MACRO) write_basic_package_version_file("${GLFW_BINARY_DIR}/src/glfw3ConfigVersion.cmake" VERSION ${GLFW_VERSION_FULL} COMPATIBILITY SameMajorVersion) if (GLFW_BUILD_DOCS) configure_file("${GLFW_SOURCE_DIR}/docs/Doxyfile.in" "${GLFW_BINARY_DIR}/docs/Doxyfile" @ONLY) endif() configure_file("${GLFW_SOURCE_DIR}/src/glfw_config.h.in" "${GLFW_BINARY_DIR}/src/glfw_config.h" @ONLY) configure_file("${GLFW_SOURCE_DIR}/src/glfw3.pc.in" "${GLFW_BINARY_DIR}/src/glfw3.pc" @ONLY) #-------------------------------------------------------------------- # Add subdirectories #-------------------------------------------------------------------- add_subdirectory(src) if (GLFW_BUILD_EXAMPLES) add_subdirectory(examples) endif() if (GLFW_BUILD_TESTS) add_subdirectory(tests) endif() if (DOXYGEN_FOUND AND GLFW_BUILD_DOCS) add_subdirectory(docs) endif() #-------------------------------------------------------------------- # Install files other than the library # The library is installed by src/CMakeLists.txt #-------------------------------------------------------------------- if (GLFW_INSTALL) install(DIRECTORY include/GLFW DESTINATION include FILES_MATCHING PATTERN glfw3.h PATTERN glfw3native.h) install(FILES "${GLFW_BINARY_DIR}/src/glfw3Config.cmake" "${GLFW_BINARY_DIR}/src/glfw3ConfigVersion.cmake" DESTINATION lib${LIB_SUFFIX}/cmake/glfw) install(EXPORT glfwTargets DESTINATION lib${LIB_SUFFIX}/cmake/glfw) install(FILES "${GLFW_BINARY_DIR}/src/glfw3.pc" DESTINATION lib${LIB_SUFFIX}/pkgconfig) # Only generate this target if no higher-level project already has if (NOT TARGET uninstall) configure_file("${GLFW_SOURCE_DIR}/cmake_uninstall.cmake.in" "${GLFW_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY) add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${GLFW_BINARY_DIR}/cmake_uninstall.cmake") endif() endif()