Dear Guix,

I'd like to squeeze the most performance out of virtuoso, as well as add
some of the VAD packages to extend its functionality.

I attached the patch, but I have a question about the -m64 flag.  My
impression is that this flag will force a 64-bit build.  Since only
64-bit architectures are supported for this package anyway, I think this
should be fine.  Now, my question is: Does this flag have any effect on
the build?

Thanks for your time!

Kind regards,
Roel Janssen