linux下gcc6.1.0编译器安装

编译器还是源码安装好一些

 为了支持c11特性的代码  我安装的是4.8.1版本

用的是centos6.8的镜像

首先:./contrib/download_prerequisites  会下载3相互依赖的包

依次对3个包进行指定路径安装:

./configure --prefix=/usr/local/gmp            

./configure --prefix=/usr/local/mpfr --with-gmp=/usr/local/gmp

./configure --prefix=/usr/local/mpc --with-gmp=/usr/local/gmp --with-mpfr=/usr/local/mpfr

3个包安装完后 看一下动态库路径

export -p

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/mpc/lib:/usr/local/gmp/lib:/usr/local/mpfr/lib

source /etc/profile

或者

vi /etc/ld.so.conf添加/usr/local/mpc-1.0.1/lib  

ldconfig  

再./configure --prefix=/usr/local/gcc-4.8 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-gmp=/usr/local/gmp --with-mpfr=/usr/local/mpfr --with-mpc=/usr/local/mpc 生成Makefile文件

为了防止make时出错:configure: error: C++ compiler missing or inoperational

错误参考:https://my.oschina.net/vaero/blog/210485

得安装c++编译器 yum install gcc-c++

然后再make -j4 时间大约1个小时

然后再make install

最后: Libraries have been installed in:/usr/local/gcc-4.8/lib/../lib64

参考链接(主要):http://blog.sina.com.cn/s/blog_493667730100zt6n.html

设置链接:https://my.oschina.net/vaero/blog/210485

参考链接:http://www.cnblogs.com/coolulu/p/4124803.htm

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20170506 今天安装了一下gcc7.0 用make -j4编译花了大概7个小时

设置动态库搜索路径 /etc/ld.so.conf

/usr/local/lib

/usr/local/lib64