vk-bootstrap/CMakeLists.txt

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cmake_minimum_required(VERSION 3.15)
include(gen/CurrentBuildVulkanVersion.cmake)
project(VulkanBootstrap
LANGUAGES CXX
DESCRIPTION "A Vulkan utility library to ease the initialization steps in Vulkan"
VERSION ${VK_BOOTSTRAP_SOURCE_HEADER_VERSION})
option(VK_BOOTSTRAP_DISABLE_WARNINGS "Disable warnings during compilation" OFF)
option(VK_BOOTSTRAP_WERROR "Enable warnings as errors during compilation" OFF)
if (CMAKE_VERSION VERSION_LESS "3.21")
# By default, only build tests & install if this repo is standalone, but still allow configuration by the user
string(COMPARE EQUAL ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_SOURCE_DIR} PROJECT_IS_TOP_LEVEL)
endif()
option(VK_BOOTSTRAP_TEST "Test Vk-Bootstrap using Catch2 as well as build examples" ${PROJECT_IS_TOP_LEVEL})
option(VK_BOOTSTRAP_INSTALL "Enable installing of vk-bootstrap" ${PROJECT_IS_TOP_LEVEL})
set(VK_BOOTSTRAP_VULKAN_HEADER_DIR "" CACHE FILEPATH "Specify the location of the Vulkan-Headers include directory.")
mark_as_advanced(VK_BOOTSTRAP_VULKAN_HEADER_DIR)
# Check if the user has set this variable explicitly
if(IS_DIRECTORY ${VK_BOOTSTRAP_VULKAN_HEADER_DIR})
add_library(Vulkan-Headers INTERFACE)
add_library(Vulkan::Headers ALIAS Vulkan-Headers)
target_include_directories(Vulkan-Headers INTERFACE $<BUILD_INTERFACE:${VK_BOOTSTRAP_VULKAN_HEADER_DIR}>)
# If we had to use a direct path to get the headers, disable installing
set(VK_BOOTSTRAP_INSTALL OFF)
# Check if the target is already defined
elseif(NOT TARGET Vulkan::Headers)
# Try looking for the VulkanHeaders package directly
find_package(VulkanHeaders CONFIG QUIET)
if (NOT VulkanHeaders_FOUND)
# Try looking using the CMake built in Vulkan support
find_package(Vulkan QUIET)
if(Vulkan_FOUND)
# Older CMake versions don't contain Vulkan::Headers - create it in that case
if (NOT TARGET Vulkan::Headers)
add_library(Vulkan-Headers INTERFACE)
add_library(Vulkan::Headers ALIAS Vulkan-Headers)
target_include_directories(Vulkan-Headers INTERFACE $<BUILD_INTERFACE:${Vulkan_INCLUDE_DIRS}>)
set(VK_BOOTSTRAP_INSTALL OFF)
endif()
else()
# Lastly just grab Vulkan-Headers directly using FetchContent
include(FetchContent)
FetchContent_Declare(
Vulkan-Headers-for-vk-bootstrap
GIT_REPOSITORY https://github.com/KhronosGroup/Vulkan-Headers
GIT_TAG ${VK_BOOTSTRAP_SOURCE_HEADER_VERSION_GIT_TAG}
)
FetchContent_MakeAvailable(Vulkan-Headers-for-vk-bootstrap)
# If we had to use FetchContent to get the headers, disable installing
set(VK_BOOTSTRAP_INSTALL OFF)
endif()
endif()
endif()
if(NOT TARGET Vulkan::Headers)
message(FATAL_ERROR "Unable to locate required dependency Vulkan::Headers!")
endif()
add_library(vk-bootstrap-compiler-warnings INTERFACE)
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set(VK_BOOTSTRAP_COMPILER_FRONTEND ${CMAKE_CXX_COMPILER_FRONTEND_VARIANT})
if(NOT VK_BOOTSTRAP_COMPILER_FRONTEND)
set(VK_BOOTSTRAP_COMPILER_FRONTEND "None")
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endif()
if(NOT VK_BOOTSTRAP_DISABLE_WARNINGS)
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|AppleClang" OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND VK_BOOTSTRAP_COMPILER_FRONTEND MATCHES "GNU"))
target_compile_options(vk-bootstrap-compiler-warnings INTERFACE -Wall -Wextra -Wconversion -Wsign-conversion)
if(VK_BOOTSTRAP_WERROR)
target_compile_options(vk-bootstrap-compiler-warnings INTERFACE -pedantic-errors)
endif()
elseif (CMAKE_CXX_COMPILER_ID MATCHES "MSVC" OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND VK_BOOTSTRAP_COMPILER_FRONTEND MATCHES "MSVC"))
target_compile_options(vk-bootstrap-compiler-warnings INTERFACE /W4)
if(VK_BOOTSTRAP_WERROR)
target_compile_options(vk-bootstrap-compiler-warnings INTERFACE /WX)
endif()
endif()
endif()
add_library(vk-bootstrap STATIC src/VkBootstrap.h src/VkBootstrap.cpp src/VkBootstrapDispatch.h)
add_library(vk-bootstrap::vk-bootstrap ALIAS vk-bootstrap)
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target_include_directories(vk-bootstrap PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
$<INSTALL_INTERFACE:include>)
target_link_libraries(vk-bootstrap
PUBLIC
Vulkan::Headers
PRIVATE
vk-bootstrap-compiler-warnings
${CMAKE_DL_LIBS})
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target_compile_features(vk-bootstrap PUBLIC cxx_std_17)
if(VK_BOOTSTRAP_TEST)
enable_testing()
add_subdirectory(ext)
add_subdirectory(tests)
add_subdirectory(example)
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endif ()
if (VK_BOOTSTRAP_INSTALL)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
install(FILES src/VkBootstrap.h src/VkBootstrapDispatch.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(
TARGETS vk-bootstrap vk-bootstrap-compiler-warnings
EXPORT vk-bootstrap-targets
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)
install(
EXPORT vk-bootstrap-targets
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/vk-bootstrap
NAMESPACE vk-bootstrap::
)
# Create vk-bootstrap-config.cmake
set(VK_BOOTSTRAP_EXPORT_TARGETS ${CMAKE_INSTALL_LIBDIR}/cmake/vk-bootstrap/vk-bootstrap-targets.cmake)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/vk-bootstrap-config.cmake.in" [=[
@PACKAGE_INIT@
# Try to find Vulkan-Headers using find_package. Assume the package is available through either Vulkan-Headers or the older Vulkan
# Package managers should have Vulkan-Headers be a dependency of this repo.
find_package(VulkanHeaders CONFIG)
if (NOT VulkanHeaders_FOUND)
find_package(Vulkan)
if (NOT Vulkan_FOUND)
message(FATAL_ERROR "Unable to locate required dependency Vulkan::Headers!")
endif()
endif()
include(@PACKAGE_VK_BOOTSTRAP_EXPORT_TARGETS@)
]=])
configure_package_config_file(
${CMAKE_CURRENT_BINARY_DIR}/vk-bootstrap-config.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/vk-bootstrap-config.cmake
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/vk-bootstrap
PATH_VARS VK_BOOTSTRAP_EXPORT_TARGETS
NO_SET_AND_CHECK_MACRO
NO_CHECK_REQUIRED_COMPONENTS_MACRO
)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/vk-bootstrap-config.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/vk-bootstrap
)
endif()