244948e174
This will be useful when building GLFW as a CMake object library and linking it into a larger library that exports pkg-config information. Partly based on #1307 by @a3f. Closes #1307.
342 lines
11 KiB
CMake
342 lines
11 KiB
CMake
cmake_minimum_required(VERSION 3.1...3.17 FATAL_ERROR)
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project(GLFW VERSION 3.4.0 LANGUAGES C)
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set(CMAKE_LEGACY_CYGWIN_WIN32 OFF)
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if (POLICY CMP0054)
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cmake_policy(SET CMP0054 NEW)
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endif()
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if (POLICY CMP0069)
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cmake_policy(SET CMP0069 NEW)
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endif()
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if (POLICY CMP0077)
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cmake_policy(SET CMP0077 NEW)
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endif()
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set_property(GLOBAL PROPERTY USE_FOLDERS ON)
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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set(GLFW_STANDALONE TRUE)
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endif()
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option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
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option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" ${GLFW_STANDALONE})
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option(GLFW_BUILD_TESTS "Build the GLFW test programs" ${GLFW_STANDALONE})
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option(GLFW_BUILD_DOCS "Build the GLFW documentation" ON)
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option(GLFW_INSTALL "Generate installation target" ON)
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option(GLFW_VULKAN_STATIC "Assume the Vulkan loader is linked with the application" OFF)
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include(GNUInstallDirs)
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include(CMakeDependentOption)
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cmake_dependent_option(GLFW_USE_OSMESA "Use OSMesa for offscreen context creation" OFF
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"UNIX" OFF)
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cmake_dependent_option(GLFW_USE_HYBRID_HPG "Force use of high-performance GPU on hybrid systems" OFF
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"WIN32" OFF)
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cmake_dependent_option(GLFW_USE_WAYLAND "Use Wayland for window creation" OFF
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"UNIX;NOT APPLE" OFF)
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cmake_dependent_option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON
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"MSVC" OFF)
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set(GLFW_LIBRARY_TYPE "${GLFW_LIBRARY_TYPE}" CACHE STRING
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"Library type override for GLFW (SHARED, STATIC, OBJECT, or empty to follow BUILD_SHARED_LIBS)")
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if (GLFW_LIBRARY_TYPE)
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if (GLFW_LIBRARY_TYPE STREQUAL "SHARED")
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set(GLFW_BUILD_SHARED_LIBRARY TRUE)
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else()
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set(GLFW_BUILD_SHARED_LIBRARY FALSE)
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endif()
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else()
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set(GLFW_BUILD_SHARED_LIBRARY ${BUILD_SHARED_LIBS})
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endif()
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if (UNIX AND GLFW_BUILD_SHARED_LIBRARY)
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# On Unix-like systems, shared libraries can use the soname system.
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set(GLFW_LIB_NAME glfw)
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else()
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set(GLFW_LIB_NAME glfw3)
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endif()
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if (GLFW_VULKAN_STATIC)
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if (GLFW_BUILD_SHARED_LIBRARY)
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# If you absolutely must do this, remove this line and add the Vulkan
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# loader static library via the CMAKE_SHARED_LINKER_FLAGS
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message(FATAL_ERROR "You are trying to link the Vulkan loader static library into the GLFW shared library")
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endif()
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set(_GLFW_VULKAN_STATIC 1)
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endif()
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list(APPEND CMAKE_MODULE_PATH "${GLFW_SOURCE_DIR}/CMake/modules")
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find_package(Threads REQUIRED)
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if (GLFW_BUILD_DOCS)
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set(DOXYGEN_SKIP_DOT TRUE)
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find_package(Doxygen)
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endif()
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#--------------------------------------------------------------------
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# Apply Microsoft C runtime library option
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# This is here because it also applies to tests and examples
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#--------------------------------------------------------------------
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if (MSVC AND NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
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if (CMAKE_VERSION VERSION_LESS 3.15)
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foreach (flag CMAKE_C_FLAGS
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CMAKE_C_FLAGS_DEBUG
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CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL
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CMAKE_C_FLAGS_RELWITHDEBINFO)
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if (flag MATCHES "/MD")
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string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
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endif()
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if (flag MATCHES "/MDd")
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string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}")
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endif()
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endforeach()
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else()
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set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
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endif()
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endif()
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#--------------------------------------------------------------------
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# Detect and select backend APIs
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#--------------------------------------------------------------------
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if (GLFW_USE_WAYLAND)
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set(_GLFW_WAYLAND 1)
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message(STATUS "Using Wayland for window creation")
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elseif (GLFW_USE_OSMESA)
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set(_GLFW_OSMESA 1)
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message(STATUS "Using OSMesa for headless context creation")
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elseif (WIN32)
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set(_GLFW_WIN32 1)
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message(STATUS "Using Win32 for window creation")
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elseif (APPLE)
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set(_GLFW_COCOA 1)
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message(STATUS "Using Cocoa for window creation")
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elseif (UNIX)
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set(_GLFW_X11 1)
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message(STATUS "Using X11 for window creation")
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else()
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message(FATAL_ERROR "No supported platform was detected")
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endif()
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#--------------------------------------------------------------------
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# Find and add Unix math and time libraries
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#--------------------------------------------------------------------
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if (UNIX AND NOT APPLE)
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find_library(RT_LIBRARY rt)
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mark_as_advanced(RT_LIBRARY)
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if (RT_LIBRARY)
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list(APPEND glfw_LIBRARIES "${RT_LIBRARY}")
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list(APPEND glfw_PKG_LIBS "-lrt")
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endif()
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find_library(MATH_LIBRARY m)
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mark_as_advanced(MATH_LIBRARY)
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if (MATH_LIBRARY)
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list(APPEND glfw_LIBRARIES "${MATH_LIBRARY}")
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list(APPEND glfw_PKG_LIBS "-lm")
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endif()
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if (CMAKE_DL_LIBS)
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list(APPEND glfw_LIBRARIES "${CMAKE_DL_LIBS}")
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list(APPEND glfw_PKG_LIBS "-l${CMAKE_DL_LIBS}")
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endif()
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endif()
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#--------------------------------------------------------------------
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# Use Win32 for window creation
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#--------------------------------------------------------------------
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if (_GLFW_WIN32)
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list(APPEND glfw_PKG_LIBS "-lgdi32")
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if (GLFW_USE_HYBRID_HPG)
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set(_GLFW_USE_HYBRID_HPG 1)
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endif()
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endif()
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#--------------------------------------------------------------------
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# Use X11 for window creation
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#--------------------------------------------------------------------
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if (_GLFW_X11)
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find_package(X11 REQUIRED)
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# Set up library and include paths
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list(APPEND glfw_INCLUDE_DIRS "${X11_X11_INCLUDE_PATH}")
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# Check for XRandR (modern resolution switching and gamma control)
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if (NOT X11_Xrandr_INCLUDE_PATH)
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message(FATAL_ERROR "RandR headers not found; install libxrandr development package")
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endif()
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# Check for Xinerama (legacy multi-monitor support)
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if (NOT X11_Xinerama_INCLUDE_PATH)
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message(FATAL_ERROR "Xinerama headers not found; install libxinerama development package")
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endif()
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# Check for Xkb (X keyboard extension)
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if (NOT X11_Xkb_INCLUDE_PATH)
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message(FATAL_ERROR "XKB headers not found; install X11 development package")
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endif()
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# Check for Xcursor (cursor creation from RGBA images)
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if (NOT X11_Xcursor_INCLUDE_PATH)
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message(FATAL_ERROR "Xcursor headers not found; install libxcursor development package")
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endif()
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# Check for XInput (modern HID input)
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if (NOT X11_Xi_INCLUDE_PATH)
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message(FATAL_ERROR "XInput headers not found; install libxi development package")
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endif()
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# Check for X Shape (custom window input shape)
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if (NOT X11_Xshape_INCLUDE_PATH)
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message(FATAL_ERROR "X Shape headers not found; install libxext development package")
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endif()
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endif()
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#--------------------------------------------------------------------
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# Use Wayland for window creation
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#--------------------------------------------------------------------
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if (_GLFW_WAYLAND)
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include(FindPkgConfig)
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pkg_check_modules(Wayland REQUIRED
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wayland-client>=0.2.7
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wayland-cursor>=0.2.7
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wayland-egl>=0.2.7
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xkbcommon)
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list(APPEND glfw_PKG_DEPS "wayland-client")
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list(APPEND glfw_INCLUDE_DIRS "${Wayland_INCLUDE_DIRS}")
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include(CheckIncludeFiles)
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include(CheckFunctionExists)
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check_include_files(xkbcommon/xkbcommon-compose.h HAVE_XKBCOMMON_COMPOSE_H)
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check_function_exists(memfd_create HAVE_MEMFD_CREATE)
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if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")
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find_package(EpollShim)
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if (EPOLLSHIM_FOUND)
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list(APPEND glfw_INCLUDE_DIRS "${EPOLLSHIM_INCLUDE_DIRS}")
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list(APPEND glfw_LIBRARIES "${EPOLLSHIM_LIBRARIES}")
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endif()
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endif()
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endif()
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#--------------------------------------------------------------------
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# Use Cocoa for window creation and NSOpenGL for context creation
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#--------------------------------------------------------------------
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if (_GLFW_COCOA)
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list(APPEND glfw_LIBRARIES
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"-framework Cocoa"
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"-framework IOKit"
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"-framework CoreFoundation")
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set(glfw_PKG_DEPS "")
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set(glfw_PKG_LIBS "-framework Cocoa -framework IOKit -framework CoreFoundation")
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endif()
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#--------------------------------------------------------------------
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# Add the Vulkan loader as a dependency if necessary
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#--------------------------------------------------------------------
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if (GLFW_VULKAN_STATIC)
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list(APPEND glfw_PKG_DEPS "vulkan")
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endif()
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#--------------------------------------------------------------------
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# Export GLFW library dependencies
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#--------------------------------------------------------------------
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foreach(arg ${glfw_PKG_DEPS})
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set(deps "${deps} ${arg}")
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endforeach()
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foreach(arg ${glfw_PKG_LIBS})
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set(libs "${libs} ${arg}")
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endforeach()
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set(GLFW_PKG_CONFIG_REQUIRES_PRIVATE "${deps}" CACHE INTERNAL
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"GLFW pkg-config Requires.private")
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set(GLFW_PKG_CONFIG_LIBS_PRIVATE "${libs}" CACHE INTERNAL
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"GLFW pkg-config Libs.private")
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#--------------------------------------------------------------------
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# Create generated files
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#--------------------------------------------------------------------
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include(CMakePackageConfigHelpers)
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set(GLFW_CONFIG_PATH "${CMAKE_INSTALL_LIBDIR}/cmake/glfw3")
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configure_package_config_file(CMake/glfw3Config.cmake.in
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src/glfw3Config.cmake
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INSTALL_DESTINATION "${GLFW_CONFIG_PATH}"
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NO_CHECK_REQUIRED_COMPONENTS_MACRO)
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write_basic_package_version_file(src/glfw3ConfigVersion.cmake
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VERSION ${GLFW_VERSION}
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COMPATIBILITY SameMajorVersion)
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configure_file(CMake/glfw3.pc.in src/glfw3.pc @ONLY)
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#--------------------------------------------------------------------
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# Add subdirectories
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#--------------------------------------------------------------------
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add_subdirectory(src)
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if (GLFW_BUILD_EXAMPLES)
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add_subdirectory(examples)
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endif()
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if (GLFW_BUILD_TESTS)
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add_subdirectory(tests)
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endif()
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if (DOXYGEN_FOUND AND GLFW_BUILD_DOCS)
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add_subdirectory(docs)
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endif()
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#--------------------------------------------------------------------
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# Install files other than the library
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# The library is installed by src/CMakeLists.txt
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#--------------------------------------------------------------------
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if (GLFW_INSTALL)
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install(DIRECTORY include/GLFW DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
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FILES_MATCHING PATTERN glfw3.h PATTERN glfw3native.h)
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install(FILES "${GLFW_BINARY_DIR}/src/glfw3Config.cmake"
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"${GLFW_BINARY_DIR}/src/glfw3ConfigVersion.cmake"
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DESTINATION "${GLFW_CONFIG_PATH}")
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install(EXPORT glfwTargets FILE glfw3Targets.cmake
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EXPORT_LINK_INTERFACE_LIBRARIES
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DESTINATION "${GLFW_CONFIG_PATH}")
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install(FILES "${GLFW_BINARY_DIR}/src/glfw3.pc"
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DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
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if (DOXYGEN_FOUND AND GLFW_BUILD_DOCS)
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install(DIRECTORY "${GLFW_BINARY_DIR}/docs/html"
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DESTINATION "${CMAKE_INSTALL_DOCDIR}")
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endif()
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# Only generate this target if no higher-level project already has
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if (NOT TARGET uninstall)
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configure_file(CMake/cmake_uninstall.cmake.in
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cmake_uninstall.cmake IMMEDIATE @ONLY)
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add_custom_target(uninstall
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"${CMAKE_COMMAND}" -P
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"${GLFW_BINARY_DIR}/cmake_uninstall.cmake")
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set_target_properties(uninstall PROPERTIES FOLDER "GLFW3")
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endif()
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endif()
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