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CentOS下编译安装Gcc-4.9

  给公司测试服务器搭环境,手工安装gcc-4.9.0颇费功夫,记录如下。

  1、安装gcc、g++,系统源默认安装版本为4.4.7;

  2、安装依赖包GMP、MPFR、MPC,注意安装顺序;

  3、修改动态库链接路径,加入GMP、MPFR、MPC;

  4、编译安装Gcc-4.9,新创建目录gcc-build来存放Make过程产生文件;

  5、拷贝Gcc-4.9的头文件至目录/usr/include/c++;

  6、修改LD_LIBRARY_PATH、PATH和CPLUS_INCLUDE_PATH;

  7、建立新的Gcc、G++软连接。

1yum -y install gcc    yum -y install gcc-c++2mkdir /usr/local/gmp-4.3.2    ./configure --prefix=/usr/local/gmp-4.3.2/    make    make install    mkdir /usr/local/mpfr-2.4.2    ./configure --prefix=/usr/local/mpfr-2.4.2 --with-gmp=/usr/local/gmp-4.3.2    make    make install    mkdir /usr/local/mpc-0.8.1    ./configure --prefix=/usr/local/mpc-0.8.1 --with-gmp=/usr/local/gmp-4.3.2 --with-mpfr=/usr/local/mpfr-2.4.2    make    make install3、    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/gmp-4.3.2/lib:/usr/local/mpfr-2.4.2/lib:/usr/local/mpc-0.8.1/lib4mkdir gcc-bulid    cd gcc-build    ../gcc-4.9.0/configure --prefix=/usr/local/gcc-4.9.0 --exec-prefix=/usr/local/gcc --enable-languages=c,c++ --with-gmp=/usr/local/gmp-4.3.2 --with-mpfr=/usr/local/mpfr-2.4.2 --with-mpc=/usr/local/mpc-0.8.1 --disable-multilib    make    make install5cp -r /usr/local/gcc-4.9.0/include/c++/4.9.0 /usr/include/c++6、    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/gmp-4.3.2/lib:/usr/local/mpfr-2.4.2/lib:/usr/local/mpc-0.8.1/lib:/usr/local/gcc/lib64    export PATH=$PATH:/usr/local/gcc/bin    export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/include/c++/4.9.0:/usr/include/c++/4.9.0/x86_64-unknown-linux-gnu7mv gcc gcc-4.4.7    ln -s /usr/local/gcc/bin/gcc ./gcc    mv g++ g++-4.4.7    ln -s /usr/local/gcc/bin/g++ g++

 

CentOS下编译安装Gcc-4.9