# gcc 8.3.0
###### tags: `programming` `c/c++` `gcc`
## build

//sudo apt install m4 m4-doc
export CPP_ROOT=$HOME/.gccenv/8.3.0
export CPUNUM=10
mkdir $CPP_ROOT
wget https://ftp.gnu.org/gnu/gmp/gmp-6.1.0.tar.bz2
tar -xf ./gmp-6.1.0.tar.bz2
cd ./gmp-6.1.0/
./configure --prefix=$CPP_ROOT --enable-cxx
make -s -j $CPUNUM
make -s -j $CPUNUM check
make -s -j $CPUNUM install
cd ../
wget https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.4.tar.bz2
tar -xf ./mpfr-3.1.4.tar.bz2
cd ./mpfr-3.1.4/
./configure --prefix=$CPP_ROOT --with-gmp=$CPP_ROOT
make -s -j $CPUNUM
make -s -j $CPUNUM check
make -s -j $CPUNUM install
cd ../
wget https://ftp.gnu.org/gnu/mpc/mpc-1.0.3.tar.gz
tar -xf ./mpc-1.0.3.tar.gz
cd ./mpc-1.0.3/
./configure --prefix=$CPP_ROOT --with-gmp=$CPP_ROOT --with-mpfr=$CPP_ROOT
make -s -j $CPUNUM
make -s -j $CPUNUM check
make -s -j $CPUNUM install
cd ../
wget https://gcc.gnu.org/pub/gcc/infrastructure/isl-0.18.tar.bz2
tar -xf ./isl-0.18.tar.bz2
cd ./isl-0.18/
./configure --prefix=$CPP_ROOT --with-gmp-prefix=$CPP_ROOT
make -s -j $CPUNUM
make -s -j $CPUNUM check
make -s -j $CPUNUM install
cd ../
//   http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-10.2.0/gcc-10.2.0.tar.gz
wget http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-8.3.0/gcc-8.3.0.tar.gz
tar -xf ./gcc-8.3.0.tar.gz
cd ./gcc-8.3.0/
mkdir ./build/
cd ./build/
../configure --disable-multilib --disable-libsanitizer --enable-languages=c,c++ --prefix=$CPP_ROOT --with-gmp=$CPP_ROOT --with-mpc=$CPP_ROOT --with-mpfr=$CPP_ROOT --with-isl=$CPP_ROOT
unset LIBRARY_PATH CPATH C_INCLUDE_PATH PKG_CONFIG_PATH CPLUS_INCLUDE_PATH INCLUDE
export LD_LIBRARY_PATH=$CPP_ROOT/lib
make -s -j $CPUNUM
make -s -j $CPUNUM install

## use

export CPP_ROOT=$HOME/.gccenv/8.3.0
export LD_LIBRARY_PATH=$CPP_ROOT/lib
export PATH=$CPP_ROOT/bin:$PATH

> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/home/uranum/.gccenv/8.3.0/bin/../libexec/gcc/x86_64-pc-linux-gnu/8.3.0/lto-wrapper
> Target: x86_64-pc-linux-gnu
> Configured with: ../configure --disable-multilib --disable-libsanitizer --enable-languages=c,c++ --prefix=/home/uranum/gcc --with-gmp=/home/uranum/gcc --with-mpc=/home/uranum/gcc --with-mpfr=/home/uranum/gcc --with-isl=/home/uranum/gcc
> Thread model: posix
> gcc version 8.3.0 (GCC)
>