CMakeLists.txt

cmake_minimum_required (VERSION 3.1)

project (InertialFlowCutter)
option (USE_KAHIP "Link KaHiP and at kahip related commands to console." ON)

set (CMAKE_CXX_STANDARD 14)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -Werror=return-type -Wno-stringop-truncation -pthread")
set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -lm")

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
find_package(TBB REQUIRED)
include_directories(SYSTEM ${TBB_INCLUDE_DIRS})

# load submodules
find_package(Git QUIET)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
# Update submodules as needed
    option(GIT_SUBMODULE "Check submodules during build" ON)
    if(GIT_SUBMODULE)
        message(STATUS "Submodule update")
        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                        RESULT_VARIABLE GIT_SUBMOD_RESULT)
        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
            message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
        endif()
    endif()
endif()

if(NOT EXISTS "${PROJECT_SOURCE_DIR}/extern/KaHIP/CMakeLists.txt")
    message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()

find_package (OpenMP REQUIRED)
find_library (READLINE NAMES libreadline.a libreadline readline)
if (NOT READLINE)
    message (FATAL_ERROR "readline library not found.")
endif()

if (USE_KAHIP)
    add_subdirectory (extern/KaHIP EXCLUDE_FROM_ALL)
endif()

set (SOURCE_FILES
    src/console.cpp
    src/fancy_input.cpp
    src/permutation.cpp
    src/list_graph.cpp
    src/file_utility.cpp
    src/geo_pos.cpp)

add_custom_target (
    routingkit
    COMMAND make
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/extern/RoutingKit
    )


#add_custom_target (routingkit DEPENDS ${CMAKE_SOURCE_DIR}/extern/RoutingKit/lib/libroutingkit.a )

add_executable (console ${SOURCE_FILES})
add_executable (customize customize.cpp)
add_executable (query query.cpp)

target_include_directories (customize PRIVATE extern/RoutingKit/include)
target_link_libraries (customize ${CMAKE_SOURCE_DIR}/extern/RoutingKit/lib/libroutingkit.a OpenMP::OpenMP_CXX)
add_dependencies (customize routingkit)

target_include_directories (query PRIVATE extern/RoutingKit/include)
target_link_libraries (query ${CMAKE_SOURCE_DIR}/extern/RoutingKit/lib/libroutingkit.a OpenMP::OpenMP_CXX)
add_dependencies (query routingkit)

if (USE_KAHIP)
    target_compile_definitions(console PUBLIC USE_KAHIP)
    target_link_libraries (console PUBLIC interface_static)
endif()
target_link_libraries(console PUBLIC ${READLINE})
target_link_libraries(console PUBLIC ${TBB_LIBRARIES})
if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
    target_link_libraries(console PUBLIC tinfo)
endif()