How to do it

Let us follow the required steps:

  1. The top-level CMakeLists.txt defines the minimum CMake version, project name, and supported language, and requires the C++11 standard:
cmake_minimum_required(VERSION 3.5 FATAL_ERROR)  project(recipe-01 LANGUAGES CXX)set(CMAKE_CXX_STANDARD 11)set(CMAKE_CXX_EXTENSIONS OFF)set(CMAKE_CXX_STANDARD_REQUIRED ON)
  1. We further define binary and library paths according to GNU standards:
include(GNUInstallDirs)set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})set(CMAKE_LIBRARY_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})set(CMAKE_RUNTIME_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
  1. And finally, we use add_subdirectory calls to structure our ...

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