Install GCC

12.2.0

tar xvf gcc-12.2.0.tar.gz
cd gcc-12.2.0
mkdir build
cd build

unset C_INCLUDE_PATH
unset CPLUS_INCLUDE_PATH
unset LD_LIBRARY_PATH
unset LIBRARY_PATH

../configure --prefix=/ceph-fj/fangjun/software/gcc-12.2.0
make -j 5
make install

gcc_dir=/ceph-fj/fangjun/software/gcc-12.2.0
export PATH=$gcc_dir/bin:$PATH
export CC=$gcc_dir/bin/gcc
export CXX=$gcc_dir/bin/g++
export LIBRARY_PATH=$gcc_dir/lib64:$LIBRARY_PATH
export LD_LIBRARY_PATH=$gcc_dir/lib64:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=$gcc_dir/include
export CPLUS_INCLUDE_PATH=$gcc_dir/include

11.4.0

sudo apt-get install -y libgmp-dev libmpfr-dev libmpc-dev
sudo apt-get install -y flex bison

tar xvf gcc-11.4.0.tar.gz
cd gcc-11.4.0
mkdir build
cd build

unset C_INCLUDE_PATH
unset CPLUS_INCLUDE_PATH
unset LD_LIBRARY_PATH
unset LIBRARY_PATH

../configure \
   --prefix=/star-fj/fangjun/software/gcc-11.4.0 \
   --enable-languages=c,c++ \
   --disable-multilib \
   --disable-bootstrap \
   --disable-nls

make -j1
make install

gcc_dir=/star-fj/fangjun/software/gcc-11.4.0
export PATH=$gcc_dir/bin:$PATH
export CC=$gcc_dir/bin/gcc
export CXX=$gcc_dir/bin/g++
export LIBRARY_PATH=$gcc_dir/lib64:$LIBRARY_PATH
export LD_LIBRARY_PATH=$gcc_dir/lib64:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=$gcc_dir/include
export CPLUS_INCLUDE_PATH=$gcc_dir/include

Using conda

conda install -c conda-forge gcc==9.5.0
conda install -c conda-forge gxx==9.5.0