# set minimum cmake version
cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
# project name and language
project(recipe-01 LANGUAGES NONE)
# detect python
find_package(PythonInterp REQUIRED)
# Execute a tiny Python script
execute_process(
COMMAND
${PYTHON_EXECUTABLE} "-c" "print('Hello, world!')"
RESULT_VARIABLE _status
OUTPUT_VARIABLE _hello_world
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
message(STATUS "RESULT_VARIABLE is: ${_status}")
message(STATUS "OUTPUT_VARIABLE is: ${_hello_world}")
# compare the "manual" messages with the following handy helper
include(CMakePrintHelpers)
cmake_print_variables(_status _hello_world)
-- Found PythonInterp: /home/ledi/anaconda3/bin/python (found version "3.8.3")
-- RESULT_VARIABLE is: 0
-- OUTPUT_VARIABLE is: Hello, world!
-- _status="0" ; _hello_world="Hello, world!"
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ledi/图片/３/makfile_learn/CMake简明教程/c30_python/build
