third_party_vulkan-loader/loader/CMakeLists.txt
Mark Young cbe28ac790 Consistent loader device ordering
The loader ICD ordering could be random on Linux based on using readdir
to find ICD manifest files.  This can result in random behaviors as
applications that select only the first device can switch which device is
used.  To resolve this, we now sort based on device type and then
internally to the types based on PCI bus information.

This also introduces a VK_LOADER_DEFAULT_DEVICE environment variable
that can be used to force a specific PCI device.  This environment variable
is actually a duplicate of the MESA_VK_DEVICE_SELECT variable, which is
also looked for if the loader environment variable is not found.

Note, that at least one ICD must support it for the extension to be used at all.
So we only do the sorting if one ICD supports it.

Fixes part of #657
2022-01-12 16:53:35 -07:00

427 lines
19 KiB
CMake

# ~~~
# Copyright (c) 2014-2021 The Khronos Group Inc.
# Copyright (c) 2014-2021 Valve Corporation
# Copyright (c) 2014-2021 LunarG, Inc.
# Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ~~~
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/generated ${CMAKE_CURRENT_BINARY_DIR})
# Get version of the API the generated code used and put it into a cmake variable LOADER_GENERATED_HEADER_VERSION
include(generated/loader_generated_header_version.cmake)
# Check for the existance of the secure_getenv or __secure_getenv commands
include(CheckFunctionExists)
include(CheckIncludeFile)
check_function_exists(secure_getenv HAVE_SECURE_GETENV)
check_function_exists(__secure_getenv HAVE___SECURE_GETENV)
if(NOT (HAVE_SECURE_GETENV OR HAVE__SECURE_GETENV))
message(WARNING "Using non-secure environmental lookups. This loader will not properly disable environent variables when run with elevated permissions.")
endif()
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/loader_cmake_config.h.in ${CMAKE_CURRENT_BINARY_DIR}/loader_cmake_config.h)
if(WIN32)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_WIN32_KHR WIN32_LEAN_AND_MEAN)
if(MSVC AND NOT MSVC_VERSION LESS 1900)
# Enable control flow guard
message(STATUS "Building loader with control flow guard")
set(MSVC_LOADER_COMPILE_OPTIONS ${MSVC_LOADER_COMPILE_OPTIONS} /guard:cf)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /guard:cf")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /guard:cf")
endif()
elseif(ANDROID)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_ANDROID_KHR)
elseif(APPLE)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_MACOS_MVK VK_USE_PLATFORM_METAL_EXT)
elseif(UNIX AND NOT APPLE) # i.e.: Linux
if(BUILD_WSI_XCB_SUPPORT)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_XCB_KHR)
endif()
if(BUILD_WSI_XLIB_SUPPORT)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_XLIB_KHR VK_USE_PLATFORM_XLIB_XRANDR_EXT)
endif()
if(BUILD_WSI_WAYLAND_SUPPORT)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_WAYLAND_KHR)
endif()
if(BUILD_WSI_DIRECTFB_SUPPORT)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_DIRECTFB_EXT)
endif()
if(BUILD_WSI_SCREEN_QNX_SUPPORT)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS VK_USE_PLATFORM_SCREEN_QNX)
endif()
else()
message(FATAL_ERROR "Unsupported Platform!")
endif()
# DEBUG enables runtime loader ICD verification
set(CMAKE_C_FLAGS_DEBUG
"${CMAKE_C_FLAGS_DEBUG} -DDEBUG -DGIT_BRANCH_NAME=${GIT_BRANCH_NAME} -DGIT_TAG_INFO=${GIT_TAG_INFO}")
set(CMAKE_CXX_FLAGS_DEBUG
"${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG -DGIT_BRANCH_NAME=${GIT_BRANCH_NAME} -DGIT_TAG_INFO=${GIT_TAG_INFO}")
if(WIN32)
if(MSVC)
# Use static MSVCRT libraries
foreach(configuration
in
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS_DEBUG
CMAKE_CXX_FLAGS_MINSIZEREL
CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if(${configuration} MATCHES "/MD")
string(REGEX
REPLACE "/MD"
"/MT"
${configuration}
"${${configuration}}")
endif()
endforeach()
endif()
if(ENABLE_WIN10_ONECORE)
# Note: When linking your app or driver to OneCore.lib, be sure to remove any links to non-umbrella libs (such as
# kernel32.lib).
set(CMAKE_CXX_STANDARD_LIBRARIES " ") # space is intentional
set(CMAKE_C_STANDARD_LIBRARIES ${CMAKE_CXX_STANDARD_LIBRARIES})
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_CRT_SECURE_NO_WARNINGS")
# ~~~
# Build dev_ext_trampoline.c and unknown_ext_chain.c with /O2 to allow tail-call optimization.
# Setup two CMake targets (loader-norm and loader-opt) for the different compilation flags.
# ~~~
set(MODIFIED_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
string(REPLACE "/Od" "/O2" MODIFIED_C_FLAGS_DEBUG ${MODIFIED_C_FLAGS_DEBUG})
string(REPLACE "/Ob0" "/Ob2" MODIFIED_C_FLAGS_DEBUG ${MODIFIED_C_FLAGS_DEBUG})
string(REGEX REPLACE "/RTC." "" MODIFIED_C_FLAGS_DEBUG ${MODIFIED_C_FLAGS_DEBUG}) #remove run-time error checks
separate_arguments(MODIFIED_C_FLAGS_DEBUG WINDOWS_COMMAND ${MODIFIED_C_FLAGS_DEBUG})
# ~~~
# Setup the loader.rc flie to contain the correct info
# Optionally uses the BUILD_DLL_VERSIONINFO build option to allow setting the exact build version
# Adds "Dev Build" to any build without the BUILD_DLL_VERSIONINFO option set
# ~~~
if ("$CACHE{BUILD_DLL_VERSIONINFO}" STREQUAL "")
# default case - use 0 as the BUILDNO
set(LOADER_RC_VERSION "1.0.1111.2222")
set(LOADER_VER_FILE_VERSION_STR "\"${LOADER_RC_VERSION}.Dev Build\"")
set(LOADER_VER_FILE_DESCRIPTION_STR "\"Vulkan Loader - Dev Build\"")
else()
set(LOADER_RC_VERSION "$CACHE{BUILD_DLL_VERSIONINFO}")
set(LOADER_VER_FILE_VERSION_STR "\"${LOADER_RC_VERSION}\"")
set(LOADER_VER_FILE_DESCRIPTION_STR "\"Vulkan Loader\"")
endif()
# RC file wants the value of FILEVERSION to separated by commas
string(REPLACE "." ", " LOADER_VER_FILE_VERSION "${LOADER_RC_VERSION}")
# Configure the file to include the versioning info
# Place it in the current directory for check-in - so the GN build has up to date info
configure_file(loader.rc.in ${CMAKE_CURRENT_LIST_DIR}/loader.rc)
endif()
set(NORMAL_LOADER_SRCS
allocation.c
cJSON.c
debug_utils.c
extension_manual.c
get_environment.c
gpa_helper.c
loader.c
log.c
murmurhash.c
terminator.c
trampoline.c
wsi.c
)
if(WIN32)
set(NORMAL_LOADER_SRCS ${NORMAL_LOADER_SRCS} loader_windows.c)
else(UNIX AND NOT APPLE) # i.e.: Linux
set(NORMAL_LOADER_SRCS ${NORMAL_LOADER_SRCS} loader_linux.c)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS LOADER_ENABLE_LINUX_SORT)
endif()
set(OPT_LOADER_SRCS dev_ext_trampoline.c phys_dev_ext.c)
# Check for assembler support
set(ASM_FAILURE_MSG "The build will fall back on building with C code\n")
set(ASM_FAILURE_MSG "${ASM_FAILURE_MSG}Note that this may be unsafe, as the C code requires tail-call optimizations to remove")
set(ASM_FAILURE_MSG "${ASM_FAILURE_MSG} the stack frame for certain calls. If the compiler does not do this, then unknown device")
set(ASM_FAILURE_MSG "${ASM_FAILURE_MSG} extensions will suffer from a corrupted stack.")
if(WIN32)
if(MINGW)
find_program(JWASM_FOUND jwasm)
if (JWASM_FOUND)
set(CMAKE_ASM_MASM_COMPILER ${JWASM_FOUND})
execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpmachine OUTPUT_VARIABLE COMPILER_VERSION_OUTPUT)
if (COMPILER_VERSION_OUTPUT)
if (COMPILER_VERSION_OUTPUT MATCHES "x86_64")
set(JWASM_FLAGS -win64)
else()
set(JWASM_FLAGS -coff)
endif()
endif()
endif()
endif()
option(USE_MASM "Use MASM" ON)
if (USE_MASM)
enable_language(ASM_MASM)
endif ()
if(CMAKE_ASM_MASM_COMPILER_WORKS OR JWASM_FOUND)
if(MINGW)
set(CMAKE_ASM_MASM_FLAGS ${CMAKE_ASM_MASM_FLAGS} ${JWASM_FLAGS})
elseif(NOT CMAKE_CL_64 AND NOT JWASM_FOUND)
set(CMAKE_ASM_MASM_FLAGS ${CMAKE_ASM_MASM_FLAGS} /safeseh)
endif()
add_executable(asm_offset asm_offset.c)
target_link_libraries(asm_offset Vulkan::Headers)
add_custom_command(OUTPUT gen_defines.asm DEPENDS asm_offset COMMAND asm_offset MASM)
add_custom_target(loader_asm_gen_files DEPENDS gen_defines.asm)
set_target_properties(loader_asm_gen_files PROPERTIES FOLDER ${LOADER_HELPER_FOLDER})
add_library(loader-unknown-chain OBJECT unknown_ext_chain_masm.asm)
target_link_libraries(loader-unknown-chain Vulkan::Headers)
add_dependencies(loader-unknown-chain loader_asm_gen_files)
else()
message(WARNING "Could not find working MASM assebler\n${ASM_FAILURE_MSG}")
add_custom_target(loader_asm_gen_files)
add_library(loader-unknown-chain OBJECT unknown_ext_chain.c)
target_link_libraries(loader-unknown-chain Vulkan::Headers)
set_target_properties(loader-unknown-chain PROPERTIES CMAKE_C_FLAGS_DEBUG "${MODIFIED_C_FLAGS_DEBUG}")
target_compile_options(loader-unknown-chain PUBLIC ${MSVC_LOADER_COMPILE_OPTIONS})
endif()
elseif(APPLE)
# For MacOS, use the C code and force the compiler's tail-call optimization instead of using assembly code.
set(OPT_LOADER_SRCS ${OPT_LOADER_SRCS} unknown_ext_chain.c)
set_source_files_properties(${OPT_LOADER_SRCS} PROPERTIES COMPILE_FLAGS -O)
add_custom_target(loader_asm_gen_files) # This causes no assembly files to be generated.
else(UNIX AND NOT APPLE) # i.e.: Linux
option(USE_GAS "Use GAS" ON)
if(USE_GAS)
enable_language(ASM)
set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS}")
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
try_compile(ASSEMBLER_WORKS ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/asm_test_aarch64.S)
if(ASSEMBLER_WORKS)
set(OPT_LOADER_SRCS ${OPT_LOADER_SRCS} unknown_ext_chain_gas_aarch64.S)
endif()
elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64" OR ${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "^i.86$")
check_include_file("cet.h" HAVE_CET_H)
if(HAVE_CET_H)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS HAVE_CET_H)
endif()
try_compile(ASSEMBLER_WORKS ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/asm_test_x86.S)
if(ASSEMBLER_WORKS)
set(OPT_LOADER_SRCS ${OPT_LOADER_SRCS} unknown_ext_chain_gas_x86.S)
endif()
endif()
endif()
if(ASSEMBLER_WORKS)
add_executable(asm_offset asm_offset.c)
target_link_libraries(asm_offset Vulkan::Headers)
target_compile_definitions(asm_offset PRIVATE _GNU_SOURCE)
add_custom_command(OUTPUT gen_defines.asm DEPENDS asm_offset COMMAND asm_offset GAS)
add_custom_target(loader_asm_gen_files DEPENDS gen_defines.asm)
else()
if(USE_GAS)
message(WARNING "Could not find working ${CMAKE_SYSTEM_PROCESSOR} GAS assembler\n${ASM_FAILURE_MSG}")
else()
message(WARNING "Assembly sources have been disabled\n${ASM_FAILURE_MSG}")
endif()
set(OPT_LOADER_SRCS ${OPT_LOADER_SRCS} unknown_ext_chain.c)
add_custom_target(loader_asm_gen_files)
endif()
endif()
if(WIN32)
add_library(loader-norm OBJECT ${NORMAL_LOADER_SRCS} dirent_on_windows.c)
# target_compile_options(loader-norm PUBLIC "$<$<CONFIG:DEBUG>:${LOCAL_C_FLAGS_DBG}>")
target_compile_options(loader-norm PUBLIC ${MSVC_LOADER_COMPILE_OPTIONS})
target_include_directories(loader-norm PRIVATE "$<TARGET_PROPERTY:Vulkan::Headers,INTERFACE_INCLUDE_DIRECTORIES>")
add_library(loader-opt OBJECT ${OPT_LOADER_SRCS})
add_dependencies(loader-opt loader_asm_gen_files)
set_target_properties(loader-opt PROPERTIES CMAKE_C_FLAGS_DEBUG "${MODIFIED_C_FLAGS_DEBUG}")
target_compile_options(loader-opt PUBLIC ${MSVC_LOADER_COMPILE_OPTIONS})
target_include_directories(loader-opt PRIVATE "$<TARGET_PROPERTY:Vulkan::Headers,INTERFACE_INCLUDE_DIRECTORIES>")
add_library(vulkan
SHARED
$<TARGET_OBJECTS:loader-opt>
$<TARGET_OBJECTS:loader-norm>
$<TARGET_OBJECTS:loader-unknown-chain>
${CMAKE_CURRENT_SOURCE_DIR}/vulkan-1.def
${CMAKE_CURRENT_LIST_DIR}/loader.rc)
if (UPDATE_DEPS)
add_dependencies(vulkan vl_update_deps)
endif()
# when adding the suffix the import and runtime library names must be consistent
# mingw: libvulkan-1.dll.a / libvulkan-1.dll
# msvc: vulkan-1.lib / vulkan-1.dll
set_target_properties(vulkan
PROPERTIES
OUTPUT_NAME vulkan-1)
target_link_libraries(vulkan Vulkan::Headers)
if(MSVC AND ENABLE_WIN10_ONECORE)
target_link_libraries(vulkan OneCoreUAP.lib LIBCMT.LIB LIBCMTD.LIB LIBVCRUNTIME.LIB LIBUCRT.LIB)
set_target_properties(vulkan PROPERTIES LINK_FLAGS "/NODEFAULTLIB")
else()
target_link_libraries(vulkan cfgmgr32)
endif()
add_dependencies(vulkan loader_asm_gen_files)
else()
# Linux and MacOS
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpointer-arith")
# Clang (and not gcc) warns about redefining a typedef with the same types, so disable that warning. Note that it will still
# throw an error if a typedef is redefined with a different type.
if(CMAKE_C_COMPILER_ID MATCHES "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-typedef-redefinition")
endif()
if(APPLE AND BUILD_STATIC_LOADER)
add_library(vulkan STATIC ${NORMAL_LOADER_SRCS} ${OPT_LOADER_SRCS})
else()
add_library(vulkan SHARED ${NORMAL_LOADER_SRCS} ${OPT_LOADER_SRCS})
endif()
add_dependencies(vulkan loader_asm_gen_files)
# set version based on LOADER_GENERATED_HEADER_VERSION used to generate the code
set_target_properties(vulkan
PROPERTIES SOVERSION "1"
VERSION ${LOADER_GENERATED_HEADER_VERSION})
target_link_libraries(vulkan ${CMAKE_DL_LIBS} m)
if (NOT ANDROID)
target_link_libraries(vulkan pthread)
endif()
target_link_libraries(vulkan Vulkan::Headers)
# Used to make alloca() and secure_getenv() available
target_compile_definitions(vulkan PRIVATE _GNU_SOURCE)
if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
target_compile_definitions(vulkan PRIVATE __BSD_VISIBLE=1)
target_compile_definitions(asm_offset PRIVATE __BSD_VISIBLE=1)
endif()
if(APPLE)
find_library(COREFOUNDATION_LIBRARY NAMES CoreFoundation)
target_link_libraries(vulkan "-framework CoreFoundation")
# Build vulkan.framework
set(FRAMEWORK_HEADERS
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vk_icd.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vk_layer.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vk_platform.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vk_sdk_platform.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_android.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_core.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_ios.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_macos.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_vi.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_wayland.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_win32.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_xcb.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_xlib.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_xlib_xrandr.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan_screen.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan.h
${VulkanHeaders_INCLUDE_DIRS}/vulkan/vulkan.hpp)
if(BUILD_STATIC_LOADER)
add_library(vulkan-framework STATIC ${NORMAL_LOADER_SRCS} ${OPT_LOADER_SRCS} ${FRAMEWORK_HEADERS})
else()
add_library(vulkan-framework SHARED ${NORMAL_LOADER_SRCS} ${OPT_LOADER_SRCS} ${FRAMEWORK_HEADERS})
endif()
add_dependencies(vulkan-framework loader_asm_gen_files)
target_link_libraries(vulkan-framework -ldl -lpthread -lm "-framework CoreFoundation")
target_link_libraries(vulkan-framework Vulkan::Headers)
# The FRAMEWORK_VERSION needs to be "A" here so that Xcode code-signing works when a user adds their framework to an Xcode
# project and does "Sign on Copy". It would have been nicer to use "1" to denote Vulkan 1. Although Apple docs say that a
# framework version does not have to be "A", this part of the Apple toolchain expects it.
# https://forums.developer.apple.com/thread/65963
# cmake-format: off
set_target_properties(vulkan-framework PROPERTIES
OUTPUT_NAME vulkan
FRAMEWORK TRUE
FRAMEWORK_VERSION A
VERSION "${LOADER_GENERATED_HEADER_VERSION}" # "current version"
SOVERSION "1.0.0" # "compatibility version"
MACOSX_FRAMEWORK_IDENTIFIER com.lunarg.vulkanFramework
PUBLIC_HEADER "${FRAMEWORK_HEADERS}"
)
install(TARGETS vulkan-framework
PUBLIC_HEADER DESTINATION vulkan
FRAMEWORK DESTINATION loader
)
# cmake-format: on
endif()
if(NOT APPLE)
target_compile_definitions(vulkan PRIVATE _XOPEN_SOURCE=500) # hush compiler warnings for readlink
endif()
endif()
# Generate pkg-config file.
include(FindPkgConfig QUIET)
if(PKG_CONFIG_FOUND)
set(VK_API_VERSION "${LOADER_GENERATED_HEADER_VERSION}")
foreach(LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES} ${PLATFORM_LIBS})
set(PRIVATE_LIBS "${PRIVATE_LIBS} -l${LIB}")
endforeach()
if(WIN32)
set(VULKAN_LIB_SUFFIX "-1")
# Set libdir path as in cmake's FindVulkan.cmake
# https://github.com/KhronosGroup/Vulkan-Loader/issues/668
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
string(REPLACE "lib" "Lib" CMAKE_INSTALL_FULL_LIBDIR_PC ${CMAKE_INSTALL_FULL_LIBDIR})
else()
string(REPLACE "lib" "Lib32" CMAKE_INSTALL_FULL_LIBDIR_PC ${CMAKE_INSTALL_FULL_LIBDIR})
endif()
else()
set(CMAKE_INSTALL_FULL_LIBDIR_PC ${CMAKE_INSTALL_FULL_LIBDIR})
endif ()
configure_file("vulkan.pc.in" "vulkan.pc" @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/vulkan.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif()
target_link_libraries(vulkan Vulkan::Headers)
add_library(Vulkan::Vulkan ALIAS vulkan)
install(TARGETS vulkan
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})