mirror of
https://github.com/KhronosGroup/Vulkan-Headers.git
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382bf3de06
Generate VulkanHeadersConfig.cmake and version file and install them. To get the version information the header file vulkan_core.h is parsed. In client code one can use `find_package(VulkanHeaders)` and get the targets `Vulkan::Headers` and `Vulkan::Registry`. The following additional files are generated and installed by CMake: - VulkanHeadersConfig.cmake: searched for by find_package(VulkanHeaders) - VulkanHeadersConfigVersion.cmake: provides version numbers - VulkanHeadersTargets.cmake: CMake target definitions used by config file
131 lines
5.5 KiB
CMake
131 lines
5.5 KiB
CMake
# ~~~
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# Copyright (c) 2018 Valve Corporation
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# Copyright (c) 2018 LunarG, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ~~~
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# CMake project initialization ---------------------------------------------------------------------------------------------------
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# This section contains pre-project() initialization, and ends with the project() command.
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cmake_minimum_required(VERSION 3.10.2)
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# NONE = this project has no language toolchain requirement.
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project(Vulkan-Headers NONE)
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file(READ "include/vulkan/vulkan_core.h" ver)
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string(REGEX MATCH "#define[ ]+VK_HEADER_VERSION_COMPLETE[ ]+VK_MAKE_VERSION\\([ ]*([0-9]+),[ ]*([0-9]+),[ ]*VK_HEADER_VERSION[ ]*\\)" _ ${ver})
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set(VK_VERSION_MAJOR "${CMAKE_MATCH_1}")
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set(VK_VERSION_MINOR "${CMAKE_MATCH_2}")
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string(REGEX MATCH "#define[ ]+VK_HEADER_VERSION[ ]+([0-9]+)" _ ${ver})
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set(VK_HEADER_VERSION "${CMAKE_MATCH_1}")
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# check if version parsing was successful
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if(VK_VERSION_MAJOR STREQUAL "")
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message(FATAL_ERROR "Error reading major version from 'include/vulkan/vulkan_core.h'")
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endif()
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if(VK_VERSION_MINOR STREQUAL "")
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message(FATAL_ERROR "Error reading minor version from 'include/vulkan/vulkan_core.h'")
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endif()
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if(VK_HEADER_VERSION STREQUAL "")
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message(FATAL_ERROR "Error reading header version from 'include/vulkan/vulkan_core.h'")
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endif()
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set(VK_VERSION_STRING "${VK_VERSION_MAJOR}.${VK_VERSION_MINOR}.${VK_HEADER_VERSION}")
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message(STATUS "Found Vulkan-Headers VK_VERSION_STRING '${VK_VERSION_STRING}'")
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option(VULKAN_HEADERS_SKIP_INSTALL "Skip install" OFF)
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# User-interface declarations ----------------------------------------------------------------------------------------------------
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# This section contains variables that affect development GUIs (e.g. CMake GUI and IDEs), such as option(), folders, and variables
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# with the CACHE property.
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include(GNUInstallDirs)
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if(WIN32 AND CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
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# Windows: if install locations not set by user, set install prefix to "<build_dir>\install".
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set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "default install path" FORCE)
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endif()
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# --------------------------------------------------------------------------------------------------------------------------------
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# define exported targets for nested project builds to consume
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add_library(Vulkan-Headers INTERFACE)
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target_include_directories(Vulkan-Headers INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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add_library(Vulkan::Headers ALIAS Vulkan-Headers)
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add_library(Vulkan-Registry INTERFACE)
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target_include_directories(Vulkan-Registry INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/registry>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_DATADIR}/vulkan>
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)
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add_library(Vulkan::Registry ALIAS Vulkan-Registry)
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# Installation
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# This adds the following files to the install target
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# - Vulkan Header files
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# - Vulkan Registry files
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# - CMake config files generated by CMake
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# - VulkanHeadersConfig.cmake: searched for by find_package(VulkanHeaders)
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# - VulkanHeadersConfigVersion.cmake: provides version numbers
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# - VulkanHeadersTargets.cmake: CMake target definitions used by config file
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if(NOT VULKAN_HEADERS_SKIP_INSTALL)
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set(config_install_dir "${CMAKE_INSTALL_DATADIR}/cmake/VulkanHeaders")
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set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
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set(version_config "${generated_dir}/VulkanHeadersConfigVersion.cmake")
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set(project_config "${generated_dir}/VulkanHeadersConfig.cmake")
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set(TARGETS_EXPORT_NAME "VulkanHeadersTargets")
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set(namespace "Vulkan::")
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(
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"${version_config}"
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VERSION ${VK_VERSION_STRING}
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COMPATIBILITY AnyNewerVersion
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)
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configure_package_config_file(
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"cmake/Config.cmake.in"
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"${project_config}"
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INSTALL_DESTINATION "${config_install_dir}"
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)
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install(
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TARGETS Vulkan-Headers Vulkan-Registry
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EXPORT "${TARGETS_EXPORT_NAME}"
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/vulkan"
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
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)
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install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/registry"
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DESTINATION ${CMAKE_INSTALL_DATADIR}/vulkan
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)
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install(FILES "${project_config}" "${version_config}"
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DESTINATION "${config_install_dir}"
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)
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install(
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EXPORT "${TARGETS_EXPORT_NAME}"
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NAMESPACE "${namespace}"
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DESTINATION "${config_install_dir}")
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# uninstall target
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if(NOT TARGET uninstall)
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
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"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
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IMMEDIATE
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@ONLY)
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add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
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endif()
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endif()
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