https://github.com/illumos/gcc/archive/refs/tags/gcc-7.5.0-il-1.tar.gz $/gcc
https://gmplib.org/download/gmp/gmp-6.2.1.tar.xz $/gcc/gmp
https://www.mpfr.org/mpfr-current/mpfr-4.2.0.tar.xz $/gcc/mpfr
https://ftp.gnu.org/gnu/mpc/mpc-1.3.1.tar.gz $/gcc/mpc
files/ $/gcc