When I run Göran Weinholt's schjig's `schjig.scm` against guile 3.0.8 I encounter the following error. Please notice that I first switch on r6rs compatibility mode. I have no `.guile` file. I did not see this listed on the R6RS incompatibilities. Is this a bug, either in guile or gmp?

```shell

$ guile

(install-r6rs!)

(load "schjig.scm")

...

(check (bitwise-rotate-bit-field 573972483446053417 1238 4006 -1627) => (quote 573972483446053417))
gmp: overflow in mpz type
Abort trap: 6

```

Best,

JBH