GCC5.4安装

1.下载

镜像站点：https://gcc.gnu.org/mirrors.html

速度还不错的：ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/

2.解压安装依赖库

./contrib/download_prerequisites

3.配置

./configure --disable-multilib（不生成编译为其他平台可执行代码的交叉编译器）

4.编译安装

make && make install

5.测试代码

#include <iostream>
#include <string>
#include <iterator>
#include <algorithm>
#include <array>
 
int main()
{
    // construction uses aggregate initialization
    std::array<int, 3> a1{ {1,2,3} };  // double-braces required
    std::array<int, 3> a2 = {1, 2, 3}; // except after =
    std::array<std::string, 2> a3 = { {std::string("a"), "b"} };
 
    // container operations are supported
    std::sort(a1.begin(), a1.end());
    std::reverse_copy(a2.begin(), a2.end(), 
                      std::ostream_iterator<int>(std::cout, " "));
 
    std::cout << '\n';
 
    // ranged for loop is supported
    for(auto& s: a3)
        std::cout << s << ' ';
    std::cout << '\n';    
}

　

如果出现如下报错：

/usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by ./test)

更新软连接即可：

/usr/lib64/libstdc++.so.6 -> /usr/lib64/libstdc++.so.6.0.21