add rv64im{,c,fc} multilibs

[Alexandre Oliva]

On Feb 23, 2021, Kito Cheng <kito.cheng@gmail.com> wrote:

> We've added a new configure option to allow you to override that
> without changing source code.

Ah, nice, thanks!  I'll add a note on our internal patch to switch to
that when we switch to GCC 11.


I take your response as confirming my expectation that the defaults are
to remain unchanged for now, and I will thus proceed under this
assumption.

Thanks for the prompt response!


-- 
Alexandre Oliva, happy hacker  https://FSFLA.org/blogs/lxo/
   Free Software Activist         GNU Toolchain Engineer
        Vim, Vi, Voltei pro Emacs -- GNUlius Caesar