CMake Cookbook

How to do it

Let us have a look at our CMakeLists.txt:

1. We first declare a Fortran project:

cmake_minimum_required(VERSION 3.5 FATAL_ERROR)project(recipe-05 LANGUAGES Fortran)

2. This example depends on the Python interpreter so that we can execute the helper scripts in a portable fashion:

find_package(PythonInterp REQUIRED)

3. In this example, we default to the "Release" build type so that CMake adds optimization flags so that we have something to print later:

if(NOT CMAKE_BUILD_TYPE)  set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)endif()

4. Now, we define the executable target:

add_executable(example "")target_sources(example  PRIVATE    example.f90  )

5. We then define a custom command to print the link line before the example target ...