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

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#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