September 2018
Intermediate to advanced
606 pages
14h 32m
English
Content preview from CMake Cookbook
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How to do it
When composing the CMakeLists.txt file, we will reuse some of the building blocks we encountered in Chapter 3, Detecting External Libraries and Programs, Recipe 6, Detecting the MPI parallel environment:
- We declare a C++11 project:
cmake_minimum_required(VERSION 3.9 FATAL_ERROR)project(recipe-09 LANGUAGES CXX)set(CMAKE_CXX_STANDARD 11)set(CMAKE_CXX_EXTENSIONS OFF)set(CMAKE_CXX_STANDARD_REQUIRED ON)
- Then, we introduce an option, USE_MPI, to select MPI parallelization and set it ON by default. If it is ON, we use find_package to locate the MPI environment:
option(USE_MPI "Use MPI parallelization" ON)if(USE_MPI) find_package(MPI REQUIRED)endif()
- We then define the executable target and conditionally set the corresponding library ...
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