这么多年来跑程序，最恼火的是软件安装不上，又苦于root权限限制鄙人的发挥（相信你也一样）。而，导致各类软件安装不成功，多半由于gcc及各种相关lib和依赖的问题。基于此，某搜集资料，自行配置GCC，终于多次（重复是检验真理的标准）成功“搞定”，故，分享命令于此，愿你也能肆意操控gcc，任意“盘”各种gcc依赖相关之软件些！
（PS:切莫贪心/新，安装最新GCC版本是不明智的选择哟！！！自己掂量思考利弊。话不多说，这里以安装配置gcc-7.3.0为例，代码附上：）
## config and install gmp-6.1.0
# download into /lustre/gene/software
tar -xvf gmp-6.1.0.tar.bz2
cd gmp-6.1.0
mkdir /lustre/gene/local/gmp-6.1.0
./configure --prefix=/lustre/gene/local/gmp-6.1.0
make && make install
## config and install mpfr-3.1.4.tar.bz2
# download into /lustre/gene/software
tar -xvf mpfr-3.1.4.tar.bz2
cd mpfr-3.1.4/
mkdir /lustre/gene/local/mpfr-3.1.4
./configure --prefix=/lustre/gene/local/mpfr-3.1.4 --with-gmp=/lustre/gene/local/gmp-6.1.0/
make && make install
#为了方便，添加PATH
export LD_LIBRARY_PATH=/lustre/gene/local/gmp-6.1.0/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/gmp-6.1.0/include:$C_INCLUDE_PATH
export LD_LIBRARY_PATH=/lustre/gene/local/mpfr-3.1.4/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/mpfr-3.1.4/include:$C_INCLUDE_PATH
## config and install mpc-1.0.3 (其安装依赖gmp和mpfr，这也是前面添加path的原因)
# download into /lustre/gene/software
tar -xvf mpc-1.0.3.tar.gz
cd mpc-1.0.3/
mkdir /lustre/gene/local/mpc-1.0.3/
./configure --prefix=/lustre/gene/local/mpc-1.0.3/ --with-gmp=/lustre/gene/local/gmp-6.1.0/ --with-mpfr=/lustre/gene/local/mpfr-3.1.4
make && make install
export LD_LIBRARY_PATH=/lustre/gene/local/mpc-1.0.3/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/mpc-1.0.3/include:$C_INCLUDE_PATH
'''
如果不希望看到如下configure的错误，一定要添加--with-gmp, --with-mpfr and/or --with-mpc参数及相关路径
configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
their locations. Source code for these libraries can be found at
their respective hosting sites as well as at
ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
http://gcc.gnu.org/install/prerequisites.html for additional info. If
you obtained GMP, MPFR and/or MPC from a vendor distribution package,
make sure that you have installed both the libraries and the header
files. They may be located in separate packages.
'''
mkdir /lustre/gene/local/gcc-7.3.0
cd /lustre/gene/local/gcc-7.3.0
/lustre/gene/software/gcc-7.3.0/configure --prefix=/lustre/gene/local/gcc-7.3.0 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-gmp=/lustre/gene/local/gmp-6.1.0 --with-mpfr=/lustre/gene/local/mpfr-3.1.4 --with-mpc=/lustre/gene/local/mpc-1.0.3
make && make install
(take few hours,去打几把荣耀吧！！)
# 添加最终环境变量到bash
export LD_LIBRARY_PATH=/lustre/gene/local/gmp-6.1.0/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/gmp-6.1.0/include:$C_INCLUDE_PATH
export LD_LIBRARY_PATH=/lustre/gene/local/mpfr-3.1.4/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/mpfr-3.1.4/include:$C_INCLUDE_PATH
export LD_LIBRARY_PATH=/lustre/gene/local/mpc-1.0.3/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/mpc-1.0.3/include:$C_INCLUDE_PATH
export PATH=/lustre/gene/local/gcc-7.3.0/bin:$PATH
export LD_LIBRARY_PATH=/lustre/gene/local/gcc-7.3.0/lib:/lustre/gene/local/gcc-7.3.0/lib64:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=/lustre/gene/local/gcc-7.3.0/include:$C_INCLUDE_PATH
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