install gcc in ubuntu
$ sudo apt install build-essentialgcc 7 install ubuntu
sudo apt install software-properties-commonsudo add-apt-repository ppa:ubuntu-toolchain-r/testCompiling GCC 10 on ubuntu
1 cd ~
2 mkdir build && cd build
3 ../gcc-10.1.0/configure -v --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --prefix=/usr/local/gcc-10.1.0 --enable-checking=release --enable-languages=c,c++,fortran --disable-multilib --program-suffix=-10.1Copyright © 2021 Codeinu
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