Boost compilation and installation under Linux

The Boost library is a portable, source code C++ library that serves as a fallback to the standard library and is one of the development engines for the C++ standardization process. The Boost library was initiated by members of the C++ Standards Committee's Library Working Group, and some of it is expected to become the next generation of the C++ Standard Library content. It has a great influence in the C++ community and is an uncompromising "quasi" standard library. Boost, because of its emphasis on cross-platform, emphasis on standard C++, is not platform-independent. Most of the boost library functions only need to include the corresponding header files, and a few (such as regular expression libraries, file system libraries, etc.) need to link libraries.

installation steps:

wget https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.tar.gz
tar zxvf boost_1_64_0.tar.gz
cd boost_1_64_0.tar.gz
./bootstrap.sh --with-libraries=all --with-toolset=gcc ##--with-libraries指定编译哪些boost库，all的话就是全部编译，只想编译部分库的话就把库的名称写上，之间用 , 号分隔即可，可指定的库下面介绍。--with-toolset指定编译时使用哪种编译器，Linux下使用gcc即可，如果系统中安装了多个版本的gcc，在这里可以指定gcc的版本，比如--with-toolset=gcc-4.4

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After the command is executed, it is successful if you see the following:

Building Boost.Build engine with toolset gcc... tools/build/src/engine/bin.linuxx86_64/b2
Detecting Python version... 2.6
Detecting Python root... /usr
Unicode/ICU support for Boost.Regex?... not found.
Generating Boost.Build configuration in project-config.jam...

Bootstrapping is done. To build, run:

    ./b2

To adjust configuration, edit 'project-config.jam'.
Further information:

   - Command line help:
     ./b2 --help

   - Getting started guide: 
     http://www.boost.org/more/getting_started/unix-variants.html

   - Boost.Build documentation:
     http://www.boost.org/build/doc/html/index.html

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compile

./b2 toolset=gcc

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install boost

./b2 install --prefix=/usr  ##--prefix=/usr用来指定boost的安装目录，不加此参数的话默认的头文件在/usr/local/include/boost目录下，库文件在/usr/local/lib/目录下。这里把安装目录指定为--prefix=/usr则boost会直接安装到系统头文件目录和库文件目录下，可以省略配置环境变量。

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Finally, if you want to use the boost library to compile immediately after installation, you need to execute this command:

ldconfig

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Libraries that can be specified are: 
library name description 
atomic 
chrono 
context 
coroutine 
date_time 
exception 
filesystem 
graph graph components and algorithms 
graph_parallel 
iostreams 
locale 
log 
math 
mpi metaprogramming framework implemented with templates 
program_options 
python mapping C++ classes and functions to Python 
random 
regex regular expressions type library 
serialization 
signals 
system 
test 
thread portable C++ multithreading library 
timer 
wave

Boost usage test 
takes boost_thread as an example to test whether the newly installed boost library can be used correctly. The test code is as follows:

#include <boost/thread/thread.hpp> //包含boost头文件
#include <iostream>
#include <cstdlib>
using namespace std;

volatile bool isRuning = true;

void func1()
{
    static int cnt1 = 0;
    while(isRuning)
    {
        cout << "func1:" << cnt1++ << endl;
        sleep(1);
    }
}

void func2()
{
    static int cnt2 = 0;
    while(isRuning)
    {
        cout << "\tfunc2:" << cnt2++ << endl;
        sleep(2);
    }
}

int main()
{
    boost::thread thread1(&func1);
    boost::thread thread2(&func2);

    system("read");
    isRuning = false;

    thread2.join();
    thread1.join();
    cout << "exit" << endl;
    return 0;
}

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Compiler:

g++ main.cpp -g -o main -lboost_thread

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If the installation location of the boost library is not in the system directory, you also need to add -I and -L to specify the location of the boost header files and library files when compiling

After the compilation is successful, run the program, and the multi-threaded task implemented by boost runs correctly: 

If you encounter the error shown in the figure when compiling:

implement:

LD_LIBRARY_PATH=/usr/local/lib64/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH

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Then recompile and run.