cmake_minimum_required(VERSION 3.15) project(TestNumPyOnly LANGUAGES C) if(CMake_TEST_FindPython2_NumPy) find_package(Python2 REQUIRED COMPONENTS NumPy) Python2_add_library (arraytest2 MODULE ../NumPy/arraytest.c) target_compile_definitions (arraytest2 PRIVATE PYTHON2) target_link_libraries (arraytest2 PRIVATE Python2::NumPy) endif() if(CMake_TEST_FindPython3_NumPy) find_package(Python3 REQUIRED COMPONENTS NumPy) Python3_add_library (arraytest3 MODULE ../NumPy/arraytest.c) target_compile_definitions (arraytest3 PRIVATE PYTHON3) target_link_libraries (arraytest3 PRIVATE Python3::NumPy) endif()