Compile and install gcc-9.3.0

install_gcc_9.3.0.md

Disclaimer:

I am documenting it here for my personal use, with the hope of being useful for others. You may use it with your own responsibility

helpful links

1. http://www.linuxfromscratch.org/blfs/view/svn/general/gcc.html
2. https://gcc.gnu.org/install/configure.html
3. https://gcc.gnu.org/git.html
4. https://gcc.gnu.org/wiki/InstallingGCC

Get Source Code

git clone git://gcc.gnu.org/git/gcc.git
cd gcc
git checkout releases/gcc-9.3.0

or download and extract it from here: https://ftp.gnu.org/gnu/gcc/gcc-9.3.0/

Compile and Install

# requirements
sudo apt-get install flex bison
mkdir build
./contrib/download_prerequisites --directory=build

cd    build
../configure                                           \
    --prefix=/usr                                      \
    --disable-multilib                                 \
    --with-system-zlib                                 \
    --enable-languages=c,c++,d,fortran,go,objc,obj-c++ \
    --program-suffix=-9.3.0

make -j$(nproc)
sudo make install -j$(nproc)

@yosoufe VMware needs to know where the directory for 9.3.0 (gcc) is so it can be installed. Any idea which file to use and where it is in my new gcc folder i got from the git clone? Thanks in any case

@inthelightofthetruth I have not used Kali or VMware. Is it finding a wrong version of gcc? If so, that means you need to change the symbolic link of currently installed gcc.

$ which gcc
/usr/bin/gcc

$ ll /usr/bin/gcc
lrwxrwxrwx 1 root root 5 Mar 20  2020 /usr/bin/gcc -> gcc-9*

$ ll /usr/bin/g++
lrwxrwxrwx 1 root root 5 Mar 20  2020 /usr/bin/g++ -> g++-9*

If I want to change the default gcc version, I only change these symbolic links using ln to the GCC that I want.