Manjaro in the source installation gcc7.1

Just GCC 7.1 also came out, want to use the familiar Linux under test, special record as follows:

Prepare the necessary system environment: (Upgrade the system to the latest, install the necessary tools)

Pacman-syyu #升级系统到最新
Pacman-q GCC gawk M4 binutils lzip #查看必备工具是否具备, no on installation, my missing lzip, after installation, results

GCC 6.3.1-2
Gawk 4.1.4-2
M4 1.4.18-1
Binutils 2.28.0-2
Lzip 1.19-1

mkdir gcc_builder_7.1 && CD gcc_builder_7.1

# download three required libraries GMP, MPFR, MPC; Depending on the dependency: MPFR relies on GMP and the MPC relies on GMP and MPFR. Download order does not matter, the order must be installed first install GMP, then install MPFR, and then install the MPC, finally install GCC, because the files are interdependent, do not mistake order.

#获取必要的文件
# GMP
wget Https://gmplib.org/download/gmp/gmp-6.1.2.tar.lz
# MPFR
wget HTTP://WWW.MPFR.ORG/MPFR-CURRENT/MPFR-3.1.5.TAR.XZ
# MPC
wget ftp://ftp.gnu.org/gnu/mpc/mpc-1.0.3.tar.gz
# gcc-7.1
wget http://mirrors.webhostinggeeks.com/gcc/releases/gcc-7.1/gcc-7.1.tar.bz2

#新建源码解压保存目录,use the corresponding tool to extract to the corresponding directory, it is best not to have a version number：
# Decompression of GMP
Lzip-d Gmp-6.1.2.tar.lz
TAR-XVF Gmp-6.1.2.tar && MV gmp-6.1.2 GMP
# Unzip MPFR
TAR-JXVF mpfr-3.1.5.tar.xz && MV mpfr-3.1.5 MPFR
# decompression MPC
TAR-ZXVF mpc-1.0.3.tar.gz && MV mpc-1.0.3 MPC
# Unzip GCC
TAR-JXVF gcc-7.1.tar.bz2 && mv gcc-7.1 GCC

# Compile GMP library, install to/usr/gcc_7_1 directory to X86_64-linux-gnu kernel
CD GMP #进入gmp源码目录
mkdir build && CD Build #准备编译目录
.. /configure--prefix=/usr/gcc_7_1--build=x86_64-linux-gnu #配置编译选项
Make-j4 #编译
sudo make install #编译安装

# Compile MPFR library, install to/usr/gcc_7_1 directory to X86_64-LINUX-GNU kernel to GMP library
Cd.. /.. /MPFR #进入mpfr源码目录
mkdir build && CD Build #准备编译目录
.. /configure--build=x86_64-linux-gnu--prefix=/usr/gcc_7_1--with-gmp=/usr/gcc_7_1 #配置编译选项
Make-j4#编译
sudo make install #编译安装

# Compile MPC library, rely on GMP, MPFR, kernel ...
Cd.. /.. /MPC #进入mpc源码目录
mkdir build && CD Build #准备编译目录
.. /configure--build=x86_64-linux-gnu--prefix=/usr/gcc_7_1--with-gmp=/usr/gcc_7_1--with-mpfr=/usr/gcc_7_1 #配置编译选项
Make-j4#编译
sudo make install #编译安装

#编译GCC源码
Cd.. /.. /#进入gcc源码目录
mkdir build && CD Build #准备编译目录
Export library_path=/usr/lib/x86_64-linux-gnu/
Export C_INCLUDE_PATH=/USR/INCLUDE/X86_64-LINUX-GNU
Export CPLUS_INCLUDE_PATH=/USR/INCLUDE/X86_64-LINUX-GNU
#下一行是配置编译环境
.. /gcc/configure--build=x86_64-linux-gnu--prefix=/usr/gcc_7_1--with-gmp=/usr/gcc_7_1--with-mpfr=/usr/gcc_7_1-- With-mpc=/usr/gcc_7_1--enable-checking=release--enable-languages=c,c++,fortran--disable-multilib-- program-suffix=-7.1
Make-j4#编译

#make-jn, you can adjust the value of N, for example: Make-j4, if the compilation error, execute make clean after making, only the compilation process will be slow.
sudo ln-s/usr/lib/x86_64-linux-gnu//usr/lib64 #链接库文件
sudo make install #编译安装
Export Path=/usr/gcc_7_1/bin: $PATH

#将gcc 7.1 Add to the system path, or edit the home directory directly under the. bashrc file, and then add the export path=/usr/gcc_7_1/bin: $PATH

# Invoke Compiler Test
Gcc-7.1-v #结果如下:
Use built-in specs.
collect_gcc=gcc-7.1
Collect_lto_wrapper=/usr/gcc_7_1/libexec/gcc/x86_64-linux-gnu/7.1.0/lto-wrapper
Target: X86_64-linux-gnu
Configured as:.. /gcc/configure--build=x86_64-linux-gnu--prefix=/usr/gcc_7_1--with-gmp=/usr/gcc_7_1--with-mpfr=/usr/gcc_7_1-- With-mpc=/usr/gcc_7_1--enable-checking=release--enable-languages=c,c++,fortran--disable-multilib-- program-suffix=-7.1
Threading Model: POSIX
GCC version 7.1.0 (GCC)

#就表明安装成功

Manjaro in the source installation gcc7.1