Stan broken on Solaris. Need fix today

Stan models don’t compile on Solaris due to

stan/math/rev/mat/functor/algebra_system.hpp:97:24: error: expected nested-name-specifier before numeric constant
template <typename FS, typename F, typename T0, typename T1>
/home/ripley/R/Lib32/StanHeaders/include/stan/math/rev/mat/functor/algebra_system.hpp:97:24: error: expected ‘>’ before numeric constant
/home/ripley/R/Lib32/StanHeaders/include/stan/math/rev/mat/functor/algebra_system.hpp:100:7: error: expected unqualified-id before numeric constant
FS fs_;

It has something to do with using all capital letters for a typename. For more detail, see

CRAN is not accepting new uploads between December 22 and January 3 and I am headed to the airport. If someone can figure out a minimal fix here, I may be able to upload from the plane if it has wireless.

I can submit a pull request to change it. I should have it done in a few minutes.

Here’s the pull request:

I didn’t see this until just now! Feel free to tag me if there’s a chance you need my help - I don’t troll discourse all that often, mostly just go to specific threads and my mentions.