libdop/CMakeLists.txt at main · iceplosion/libdop · GitHub

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# Top-level CMake for libdop (header-only)
cmake_minimum_required(VERSION 3.16)

project(libdop VERSION 0.1.0 LANGUAGES CXX)

# Use C++20
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

# Add ThirdParty subdirectory for external dependencies (TaskFlow)
add_subdirectory(ThirdParty)

# If enable TaskFlow as backend, add USE_TASKFLOW
option(USE_TASKFLOW "Enable TaskFlow as backend for libdop" ON)

# Create a header-only interface library. All public headers live in `Source/`.
add_library(libdop INTERFACE
		Source/Container/DenseTensor.h
		Source/Container/PlainObject.h
		Source/Container/Span.h
		Source/Container/TypedContainer.h
		Source/Container/Vector.h
		Source/Dispatcher/Dispatch.h
		Source/Dispatcher/DispatcherParam.h
		Source/Dispatcher/ParallelRangeFor.h
		Source/Dispatcher/RangeFor.h
		Source/Dispatcher/Reduction.h
		Source/Dispatcher/Scan.h
		Source/Dispatcher/TaskHandle.h
		Source/Dispatcher/TypeConverter.h
		Source/Operator/IParallelRangeForOperator.h
		Source/Operator/ISimpleOperator.h
		Source/Operator/Tickable.h
		Source/Container/Tileable.h
		Source/Dispatcher/DispatcherDebugger.h)

# Add TaskFlow backend headers if enabled
if(USE_TASKFLOW)
	target_sources(libdop INTERFACE
			Source/Backend/TaskFlow/TaskFlowBackend.h
			Source/Backend/TaskFlow/BackendTask.h)
	target_compile_definitions(libdop INTERFACE USE_TASKFLOW)
	target_link_libraries(libdop INTERFACE TaskFlow)
endif()

target_include_directories(libdop INTERFACE
	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/Source>
	$<INSTALL_INTERFACE:include>
)

target_compile_features(libdop INTERFACE cxx_std_20)


# Provide a namespaced alias for consumers
add_library(libdop::libdop ALIAS libdop)

# Tests: optional subdirectory `Tests/` which should contain standalone test executables
option(BUILD_TESTS "Build tests located in Tests/ directory" ON)
if(BUILD_TESTS)
	if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/Tests/CMakeLists.txt")
		enable_testing()
		add_subdirectory(Tests)
	else()
		message(STATUS "BUILD_TESTS=ON but no Tests/CMakeLists.txt found in `${CMAKE_CURRENT_SOURCE_DIR}/Tests`.")
	endif()
endif()

# TODO:
# Usage notes (short):
# - To use this project from another CMake project in-tree:
#     add_subdirectory(path/to/libdop)
#     target_link_libraries(your_target PUBLIC libdop::libdop)
#
# - To use it as an installed package, you may install this project and provide
#   a package config file; then use `find_package(libdop REQUIRED)`
#   and link to `libdop::libdop`.
#
# This CMake file intentionally defines only a header-only INTERFACE library
# and does not create any library or executable from sources. Tests should be
# standalone executables placed under `Tests/` and linked against
# `libdop::libdop`.