首先我們需要安裝gcc和gcc-c++和bzip2
yum -y install gcc gcc-c++ bzip2
1、下載GCC5.3.0安裝包
8.3.0的安裝包:http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-8.3.0/gcc-8.3.0.tar.gz
#su
#cd /opt
#wget http://ftp.gnu.org/gnu/gcc/gcc-5.3.0/gcc-5.3.0.tar.gz
2、解壓
#tar -zxf gcc-5.3.0.tar.gz
3、創建安裝目錄
#mkdir /usr/local/gcc-5.3.0/
#cd /usr/local/gcc-5.3.0/
4、配置安裝
#/opt/gcc-5.3.0/configure -prefix=/usr/local/gcc-5.3.0
如果出現如下錯誤:
說明缺少依賴庫GMP、MPFR、MPC,可以從ftp://gcc.gnu.org/pub/gcc/infrastructure/下載,按下面順序安裝。
⑴ 安裝GMP4.3.2
對應8.3.0所依賴的gmp包ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-6.1.0.tar.bz2此時需要安裝m4
#cd /opt
#wget ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-4.3.2.tar.bz2
#tar jxvf gmp-4.3.2.tar.bz2
#mkdir /usr/local/gmp-4.3.2
#cd /usr/local/gmp-4.3.2
#/opt/gmp-4.3.2/configure -prefix=/usr/local/gmp-4.3.2
#make
#make install
⑵ 安裝MPFR2.4.2
對應8.3.0所依賴的mfr包ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-3.1.4.tar.bz2
#cd /opt
#wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2
#tar jxvf mpfr-2.4.2.tar.bz2
#mkdir /usr/local/mpfr-2.4.2
#cd /usr/local/mpfr-2.4.2
#/opt/mpfr-2.4.2/configure --prefix=/usr/local/mpfr-2.4.2 --with-gmp=/usr/local/gmp-4.3.2
#make
#make install
⑶ 安裝MPC0.8.1
對應8.3.0所依賴的mpc包ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-1.0.3.tar.gz
#cd /opt
#wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz
#tar -zxf mpc-0.8.1.tar.gz
#mkdir /usr/local/mpc-0.8.1
#cd /usr/local/mpc-0.8.1
#/opt/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 install
最後8.3.0還有一個新的依賴包ftp://gcc.gnu.org/pub/gcc/infrastructure/isl-0.18.tar.bz2
(4) 配置環境變量
vim /etc/profile
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/mpc-0.8.1/lib:/usr/local/gmp-4.3.2/lib:/usr/local/mpfr-2.4.2/lib
source /etc/profile
5、再次配置GCC安裝配置選項
#cd /usr/local/gcc-5.3.0
#/opt/gcc-5.3.0/configure --prefix=/usr/local/gcc-5.3.0 -enable-threads=posix -disable-checking -disable-multilib -enable-languages=c,c++ --with-gmp=/usr/local/gmp-4.3.2 --with-mpfr=/usr/local/mpfr-2.4.2 --with-mpc=/usr/local/mpc-0.8.1
6、編譯
#make
大約半小時編譯完成......
7、安裝
#make install
8、軟鏈接
#ln -s /usr/local/gcc-5.3.0/bin/gcc gcc
#ln -s /usr/local/gcc-5.3.0/bin/g++ g++
9、添加環境變量
# vim /etc/bashrc
添加如下代碼:
#gcc
LD_LIBRARY_PATH=:/usr/local/mpc-0.8.1/lib:/usr/local/gmp-4.3.2/lib:/usr/local/mpfr-2.4.2/lib:/usr/local/gcc-5.3.0/lib:/usr/local/gcc-5.3.0/lib64
#export LD_LIBRARY_PATH
最後修改軟鏈接後查看gcc版本
mv /usr/bin/gcc /usr/bin/gcc_old
ln -s /usr/local/gcc/bin/gcc /usr/bin/gcc
mv /usr/bin/g++ /usr/bin/g++_old
ln -s /usr/local/gcc/bin/g++ /usr/bin/g++
mv /usr/bin/c++ /usr/bin/c++_old
ln -s /usr/local/gcc-5.3.0/bin/c++ /usr/bin/c++
gcc --verson
g++ --version
或者刪除之前的版本
yum -y remove gcc
vim /etc/profile.d/gcc.sh
export PATH=$PATH:/usr/local/gcc/bin
source /etc/profile.d/gcc.sh
gcc -v
ln -s /usr/local/gcc-5.3.0/bin/gcc /usr/bin/cc
ln -s /usr/local/gcc-5.3.0/bin/g++ /usr/bin/c++
安裝完畢!