Building GCC from source.

build.gcc142.src.sh

#!/bin/bash

# Check if an argument was provided
if [ -z "$1" ]; then
    echo "Usage: $0 <install dir>"
    exit 1
fi

# Assign the first argument to a variable
installdir="$1"

sudo apt-get update && sudo apt-get install -y \
    build-essential \
    libgmp-dev \
    libmpfr-dev \
    libmpc-dev \
    libisl-dev \
    zlib1g-dev \
    flex \
    bison \
    texinfo \
    gawk \
    libgccjit-12-dev \
    libstdc++-12-dev \
    python3 \
    libtool \
    binutils-dev

git clone git://gcc.gnu.org/git/gcc.git
cd gcc
git checkout refs/tags/releases/gcc-14.2.0
make distclean # cleaning up just in case, might fail
./configure --disable-multilib --prefix=${installdir}
make -j
make install
echo "Finished, check the install directory: ${installdir}"