Installation script for GCC 5.4.0 in Fedora 28/29

install_gcc540.sh

echo "Download gcc 5.4.0 source code..."
wget http://ftp.gnu.org/gnu/gcc/gcc-5.4.0/gcc-5.4.0.tar.gz

echo "extract the tar file..."
tar xvfz gcc-5.4.0.tar.gz
cd gcc-5.4.0

# Download prerequisites
./contrib/download_prerequisites

# Bug fixing based on the hint from https://stackoverflow.com/a/48458759
sed -i 's/struct ucontext/struct ucontext_t/g' libgcc/config/i386/linux-unwind.h
cd ..

echo "Installing the dependencies..."
sudo dnf install gmp-devel mpfr-devel libmpc-devel

echo "Create a build folder, configure and install gcc 5.4"
mkdir gcc540-build
cd gcc540-build
../gcc-5.4.0/configure --with-system-lib --enable-languages=c,c++ -disable-multilib --prefix=/home/$USER/gcc54
make -j$(nproc) && make install