CMake Cookbook

How to do it

The corresponding CMakeLists.txt contains the following building blocks:

1. We define the minimum CMake version, the project name and supported languages:

cmake_minimum_required(VERSION 3.5 FATAL_ERROR)project(recipe-04 LANGUAGES CXX C Fortran)

2. We require the C++11 standard:

set(CMAKE_CXX_STANDARD 11)set(CMAKE_CXX_EXTENSIONS OFF)set(CMAKE_CXX_STANDARD_REQUIRED ON)

3. Further, we verify whether Fortran and C/C++ compilers work together and generate the header file which will take care of name mangling. Both functions are provided by the FortranCInterface module:

include(FortranCInterface)FortranCInterface_VERIFY(CXX)FortranCInterface_HEADER( fc_mangle.h MACRO_NAMESPACE "FC_" SYMBOLS DSCAL DGESV )

4. We then ask CMake to find BLAS ...