编译 gcc 5.1 和 6.1

首先要安装 gcc 和 g++  

yum 下 g++的包名是 gcc-c++

下载 http://ftp.gnu.org/gnu/gcc/

./configure 

make -j4

错误和解决办法:

1

checking for int64_t underlying type... long long
configure: error: error verifying int64_t uses long long

原因: 没装g++

参考 http://stackoverflow.com/questions/4160945/c-long-long-int-vs-long-int-vs-int64-t

2

cannot find -lgcc_s

原因: 没装g++

参考:

http://www.centoscn.com/image-text/config/2015/0206/4643.html

http://www.mudbest.com/centos%E5%8D%87%E7%BA%A7gcc4-4-7%E5%8D%87%E7%BA%A7gcc4-8%E6%89%8B%E8%AE%B0/