1、安装前准备工作
需要先下载准备好的源码包及其依赖包:
gcc源码包:gcc-5.4.0.tar.gz
依赖包:gmp-4.3.2.tar.gz、mpfr-2.4.2.tar.gz、mpc-1.0.1.tar.gz
在此,作者已将上述源码包打包,有需要的可自行在博客首部下载;
将源码包上传至服务器上后,执行如下命令解压待编译的安装包:
unzip gcc-5.4.0.zip && cd gcc-5.4.0/ //解压安装包并进去解压后的目录
for file in ./*.gz; do tar xf "$file"; done //批量、静默解压gcc安装包及其依赖包
2、开始安装
step 1:gmp安装:
cd gmp-4.3.2
./configure --prefix=/usr/local/gmp-4.3.2
make
make install
step 2:mpfr安装:
cd ../mpfr-2.4.2
./configure --prefix=/usr/local/mpfr-2.4.2 --with-gmp=/usr/local/gmp-4.3.2
make
make install
step 3:mpc安装:
cd ../mpc-1.0.1
./configure --prefix=/usr/local/mpc-1.0.1 --with-gmp=/usr/local/gmp-4.3.2 --with-mpfr=/usr/local/mpfr-2.4.2
make
make install
step 4:添加环境变量
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/gmp-4.3.2/lib:/usr/local/mpc-1.0.1/lib:/usr/local/mpfr-2.4.2/lib
step 5:安装gcc-5.4.0
cd ../gcc-5.4.0
mkdir gcc-build
cd gcc-build
../configure --prefix=/usr/local/gcc-5.4.0 --enable-threads=posix --disable-checking --disable-multilib --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-1.0.1
make -j4
make install
mkdir /usr/gcc_bak
mv /usr/bin/{gcc,g++} /usr/gcc_bak
ln -s /usr/local/gcc-5.4.0/bin/gcc /usr/bin/gcc
ln -s /usr/local/gcc-5.4.0/bin/g++ /usr/bin/g++
3、最后,查看GCC版本
#gcc -v
Thread model: posix
gcc version 5.4.0 (GCC)