[cmake] Basic Tutorial

Basic Project

The most basic porject is an executable built from source code file.

CMakeLists.txt

cmake_minimum_required (version 2.6)

project (Tutorial)

add_executable(Tutorial tutorial.cxx)

tutorial.cxx

#include <stdio.h>

int main(int argc, char* argv[])

{

  fprintf(stdout, "hello world");

  return ;

}

Project files:

.

├── CMakeLists.txt

└── tutorial.cxx

Upper, lower, and mixed case cammonds are supported by CMake.

Adding a library

├── CMakeLists.txt

├── MathFunctions

│   ├── CMakeLists.txt

│   ├── MathFunctions.h

│   └── mysqrt.cxx

└── tutorial.cxx

In MathFunctions/CMakeLists.txt

add_library(MathFunctions mysqrt.cxx)

add_library: create a library, static or dynamic library.

In ./CMakeList.txt

cmake_minimum_required (VERSION 2.6)

project (Tutorial)

# add the binary tree to the search path for include files

# so that we will find TutorialConfig.h

include_directories ("${PROJECT_BINARY_DIR}")

include_directories ("${PROJECT_SOURCE_DIR}/MathFunctions")

add_subdirectory (MathFunctions)

# add the executable

add_executable (Tutorial tutorial.cxx)

target_link_libraries (Tutorial  MathFunctions)

include_directories: to find the header files

add_executable: to create executable

target_link_libraries: add the library to the executable

Reference:

cmake tutorial, cmake.org