[Bug target/68945] enable libcilkrts on SPARC

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68945

--- Comment #13 from Rainer Orth <ro at gcc dot gnu.org> ---
I see my patch has been applied upstream.  Thanks for that.

It would be really great if it could be imported into the gcc tree for the
GCC 7 release, either before stage 1 closes or, release managers permitting,
even after that.

  Rainer