CMakeLists.txt

cmake_minimum_required(VERSION 3.11)
project(openjij)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-long-long -pedantic")

# add fPIC option to all object files
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

include(FetchContent)

#### Google test ####
FetchContent_Declare(
	googletest
	GIT_REPOSITORY https://github.com/google/googletest
	GIT_TAG release-1.8.1
)
FetchContent_GetProperties(googletest)
if(NOT googletest_POPULATED)
	message(STATUS "Fetch googletest for C++ testing")
	FetchContent_Populate(googletest)
	add_subdirectory(${googletest_SOURCE_DIR} ${googletest_SOURCE_DIR}/googlemock)
endif()

#### for pybind11 ####
FetchContent_Declare(
	pybind11
	GIT_REPOSITORY https://github.com/pybind/pybind11
    GIT_TAG v2.2.4
)

FetchContent_GetProperties(pybind11)
if(NOT pybind11_fetch_POPULATED)
    message(STATUS "Fetch pybind11 for python-binding")
    FetchContent_Populate(pybind11)
    add_subdirectory(${pybind11_SOURCE_DIR})
endif()

set(PYBIND11_CPP_STANDARD -std=c++11)

##### Set default behavior #####
set(DEFAULT_USE_OMP No)
set(DEFAULT_USE_CUDA Yes)
set(DEFAULT_USE_TEST No)

# Use OpenMP as default behavior
if(NOT DEFINED USE_OMP)
	set(USE_OMP ${DEFAULT_USE_OMP})
endif()

if(NOT DEFINED USE_CUDA)
	include(CheckLanguage)
	check_language(CUDA)
	if(CMAKE_CUDA_COMPILER)
		enable_language(CUDA)
		find_package(CUDA)
		set(USE_CUDA ${DEFAULT_USE_CUDA})
	else()
		message(STATUS "No CUDA support")
		set(USE_CUDA No)
	endif()
endif()

if(NOT DEFINED USE_TEST)
	set(USE_TEST ${DEFAULT_USE_TEST})
endif()

message(STATUS "USE_OMP = ${USE_OMP}")
message(STATUS "USE_CUDA = ${USE_CUDA}")
message(STATUS "USE_TEST = ${USE_TEST}")

#TODO: OMP settings

if(USE_CUDA)
	add_definitions(-DUSE_CUDA)
endif()

add_subdirectory(src)

# shared libs
add_custom_target(shared
	DEPENDS graph 
	DEPENDS algorithm 
	DEPENDS system
)

add_subdirectory(openjij)
add_subdirectory(tests)