CMakeLists.txt编写基础知识

参考文献

cmake 背景知识
cmake 基础2

应用实例

说明
采用c++的类来写hello world，然后编写教程。

• bin 二进制文档
• build 链接文档
• doc README、COPYRIGHT等的说明文档
• inc 头文件文档 hello.hh
• src 源文件文档 hello.cc
  main.cc 为主文件

附录

• main.cc

#include "hello.hh"

int main()
{
  
  HelloFunc hi;
  hi.Hello();
  return 0;
}

• hello.hh

#ifndef HELLO_hh
#define HELLO_hh 1

class HelloFunc
{
 public:
  HelloFunc();
  virtual ~HelloFunc();  
  
  void Hello();
 private:

};

#endif

• hello.cc

#include "hello.hh"
#include "iostream"
using namespace std;

HelloFunc::HelloFunc()
{

}

HelloFunc::~HelloFunc()
{}

void HelloFunc::Hello()
{
  cout<<"Hello World"<<endl;
}

-CMakeList.txt 编译文件

##
##  cmake module authored by Hubery Lee(李会)
##  2018年11月22日 
##

cmake_minimum_required(VERSION 2.6 FATAL_ERROR) #
set(PROJ_NAME hello)
project(${PROJ_NAME})

#project(${PROJ_NAME} C CXX Fortran)
#enable_language(Fortran) ##允许使用语言类型
#set(CMAKE_BUILD_TYPE release) ##release or debug
#set(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}") ##

#------------------------------------
# Include directory for this project
#
include_directories(${PROJECT_SOURCE_DIR}/inc)

#------------------------------------
# Locate sources and headers for this project
#
file(GLOB sources ${PROJECT_SOURCE_DIR}/src/*.cc)
file(GLOB headers ${PROJECT_SOURCE_DIR}/inc/*.hh)

#------------------------------------
# Add the executable and link it to the libraries
#

add_executable(${PROJ_NAME} main.cc ${sources} ${headers})

#target_link_libraries(${PROJ_NAME} -L${PROJECT_SOURE_DIR}/lib hello.so) ##链接库文件

#-------------------------------------
# Install the executable or files to 'bin' directory
# under CMAKE_INSTALL_PREFIX
#
install(TARGETS ${PROJ_NAME} DESTINATION bin)

• 问题描述

1. 如何外部编译 ？

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/lib
cd build
cmake -DCMAKE_INSTALL_PREFIX=../ ../
make -j4
make install
cd ../bin

2. 设置二进制文件存放地址

SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)

3. 如何生成动态库？

待续