CMakeLists.txt

cmake_minimum_required(VERSION 3.5)
project(py_cpu)

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}/src/pybind11/CMakeLists.txt")
    message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()

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

option (BUILD_PIC "Build shared libraries" ON)
set(BUILD_PIC ON)

add_subdirectory(src/cpu_features)
add_subdirectory(src/pybind11)

pybind11_add_module(bindings MODULE "src/binding.cc")
target_link_libraries(bindings PRIVATE cpu_features)

install(TARGETS bindings DESTINATION .)