CxxToolChain

It holds xz packages of gcc source files. All xz package is a combination of offical gcc package and its prerequisites.

Install steps: 0) cd archive

1. tar -xJf gcc-x.y.x-with-prerequisites.tar.xz
2. cd gcc-x.y.z
3. contrib/download_prerequisties # might be skipped if mpc/mpfr/isl/gmp already exist
4. mkdir objdir
5. ../configure --prefix=/usr/local/gcc-x.y.z --program-suffix=-x.y.z --enable-lto --enable-vtable-verify --enable-werror --enable-languages=c,c++ --disable-multilib # might disable werror

../configure --prefix=/usr/local/gcc-13.1.0 --program-suffix=-13.1.0 --enable-lto --enable-vtable-verify --enable-werror --enable-languages=c,c++ --disable-multilib

../configure --prefix=/usr/local/gcc-12.2.0 --program-suffix=-12.2.0 --enable-lto --enable-vtable-verify --enable-werror --enable-languages=c,c++ --disable-multilib

../configure --prefix=/usr/local/gcc-11.3.0 --program-suffix=-11.3.0 --enable-lto --enable-vtable-verify --enable-werror --enable-languages=c,c++ --disable-multilib

../configure --prefix=/usr/local/gcc-10.4.0 --program-suffix=-10.4.0 --enable-lto --enable-vtable-verify --enable-languages=c,c++ --disable-multilib

../configure --prefix=/usr/local/gcc-9.5.0 --program-suffix=-9.5.0 --enable-lto --enable-vtable-verify --enable-languages=c,c++ --disable-multilib