cmake Using CMake to configure preproccessor tags Using CMake to define the version number for C++ usage
Example
The possibilities are endless. as you can use this concept to pull the version number from your build system; such as git and use that version number in your project.
CMakeLists.txt
cmake_minimum_required(VERSION 3.8)
project(project_name VERSION "0.0.0")
configure_file(${path to configure file 'config.h.in'}
include_directories(${PROJECT_BINARY_BIN}) // this allows the 'config.h' file to be used throughout the program
...
config.h.in
#ifndef INCLUDE_GUARD
#define INCLUDE_GUARD
#define PROJECT_NAME "@PROJECT_NAME@"
#define PROJECT_VER "@PROJECT_VERSION@"
#define PROJECT_VER_MAJOR "@PROJECT_VERSION_MAJOR@"
#define PROJECT_VER_MINOR "@PROJECT_VERSION_MINOR@"
#define PTOJECT_VER_PATCH "@PROJECT_VERSION_PATCH@"
#endif // INCLUDE_GUARD
main.cpp
#include <iostream>
#include "config.h"
int main()
{
std::cout << "project name: " << PROJECT_NAME << " version: " << PROJECT_VER << std::endl;
return 0;
}
output
project name: project_name version: 0.0.0
