> +   Copyright (C) 2011-2017 Free Software Foundation, Inc.
  > +   Contributed by Andrew Waterman (andrew@sifive.com).

It looks like there's been a resolution to the issue of copyright assignment that was preventing RISC-V support in GCC.

https://www.phoronix.com/scan.php?page=news_item&px=GCC-RISC...