cmake: Remove usage of configure_package_config_file

closes Vulkan-Headers/pull/415

BUILD.md

@@ -36,7 +36,5 @@ find_package(VulkanHeaders REQUIRED CONFIG)
 
 target_link_libraries(foobar PRIVATE Vulkan::Headers)
 
-message(STATUS "Vulkan Headers Registry: ${VULKAN_HEADERS_REGISTRY_DIRECTORY}")
-
 message(STATUS "Vulkan Headers Version: ${VulkanHeaders_VERSION}")
 ```

CMakeLists.txt

@@ -75,23 +75,12 @@ if (VULKAN_HEADERS_INSTALL)
 
  set_target_properties(Vulkan-Headers PROPERTIES EXPORT_NAME "Headers")
 
- install(TARGETS Vulkan-Headers EXPORT VulkanHeadersTargets INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+ set(cmake_install_dir "${CMAKE_INSTALL_DATADIR}/cmake/VulkanHeaders")
 
- install(EXPORT VulkanHeadersTargets FILE VulkanHeadersTargets.cmake NAMESPACE "Vulkan::" DESTINATION ${cmake_files_install_dir})
+ install(TARGETS Vulkan-Headers EXPORT VulkanHeadersConfig INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+ install(EXPORT VulkanHeadersConfig NAMESPACE "Vulkan::" DESTINATION ${cmake_files_install_dir})
 
- set(vulkan_headers_config "${CMAKE_CURRENT_BINARY_DIR}/VulkanHeadersConfig.cmake")
- set(VULKAN_HEADERS_REGISTRY_DIRECTORY "${VLK_REGISTRY_DIR}/registry")
-
- configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/VulkanHeadersConfig.cmake.in ${vulkan_headers_config}
- INSTALL_DESTINATION ${cmake_files_install_dir}
- PATH_VARS VULKAN_HEADERS_REGISTRY_DIRECTORY
- NO_SET_AND_CHECK_MACRO
- NO_CHECK_REQUIRED_COMPONENTS_MACRO
- )
-
- set(config_version "${CMAKE_CURRENT_BINARY_DIR}/VulkanHeadersConfigVersion.cmake")
-
- write_basic_package_version_file(${config_version} COMPATIBILITY SameMajorVersion ARCH_INDEPENDENT)
-
- install(FILES ${config_version} ${vulkan_headers_config} DESTINATION ${cmake_files_install_dir})
+ set(version_config "${CMAKE_CURRENT_BINARY_DIR}/generated/VulkanHeadersConfigVersion.cmake")
+ write_basic_package_version_file("${version_config}" COMPATIBILITY SameMajorVersion ARCH_INDEPENDENT)
+ install(FILES "${version_config}" DESTINATION "${cmake_install_dir}")
 endif()