apt install -y build-essential
apt install libmpfr-dev libgmp3-dev libmpc-dev -y
wget http://ftp.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.gz
tar -zxvf gcc-15.2.0.tar.gz
cd gcc-15.2.0/
./configure -v --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --prefix=/usr/local/gcc-15.2.0 --enable-checking=release --enable-languages=c,c++ --disable-multilib --program-suffix=-15.2.0
make -j8
make install 
update-alternatives --install /usr/bin/g++ g++ /usr/local/gcc-14.2.0/bin/g++-15.2.0 15
update-alternatives --install /usr/bin/gcc gcc /usr/local/gcc-14.2.0/bin/gcc-15.2.0 15
wget https://ftp.gnu.org/gnu/gdb/gdb-17.1.tar.gz
tar -zxvf gdb-17.1.tar.gz 
cd gdb-17.1/
./configure -v --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --prefix=/usr/local/gdb-17.1.0 --enable-checking=release --enable-languages=c,c++ --disable-multilib --program-suffix=-17.1.0
make -j8
make install 
update-alternatives --install /usr/bin/gdb17 gdb17 /usr/local/gdb-17.1.0/bin/gdb-17.1.0 17
mv /usr/bin/gdb /usr/bin/gdb9.2
ln -sf /etc/alternatives/gdb17 /usr/bin/gdb