Gauche-mongo with current Gauche (0.9.15)

Hi, I am having issues with using Gauche-mongo
with a recent Gauche (0.9.15).

(cf https://practical-scheme.net/wiliki/wiliki.cgi/Gauche:Packages
and then:  https://github.com/ayatoy/Gauche-mongo)


When installing / configuring / and then trying to run the tests, I get:

$ git clone git://github.com/ayatoy/Gauche-mongo.git

$ cd Gauche-mongo/


$ ./configure --prefix=/home/rx/opt/Gauche
(this is where my Gauche lives)

$ make

$ make install

and then from within Gauche, for example for mongo.util (likewise for
the other mongo modules - cf the test.scm there):

gosh$ (use mongo.util)
*** ERROR: wrong number of arguments: $satisfy requires 1, but got 0
    While compiling "/home/rx/opt/gauche/share/gauche-0.98/site/lib/mongo/util.scm" at line 145: (define $mongo-uri-auth ($optional ($try ($do (user $mongo-uri-user) (($char #\:)) (pass $mongo-uri-p ...
    While loading "/home/rx/opt/gauche/share/gauche-0.98/site/lib/mongo/util.scm" at line 151
    While compiling "(input string port)" at line 1: (use mongo.util)
Stack Trace:
_______________________________________
  0  (report-error e)
  1  (%require feature)
  2  (%map1c pass1 (cdr form) cenv)
  3  (pass1 program cenv)
  4  (eval expr env)
        at "/home/rx/opt/gauche/share/gauche-0.98/0.9.15/lib/gauche/interactive.scm":359
  5  (evaluator exp (vm-current-module))
  6  (with-error-handler (^e (report-error e) #t) (^ () (let loop2 ...
gosh$ 


I should contact ayatoy - as I assume [?] - as it seems to me: Gauche-mongo is just
too old: last commit 14 years ago.


Which is a shame really, as I think: Gauche + Makiki + MongoDB + Htmx
(or whatever JavaScript framework of the jour) would make a nice stack!

Anyway: has anyone got this working? Thanks in advance.

-Andreas