Also pinging this thread with a (very slightly) updated patch. :-)
[2. text/x-diff; 0001-Hashtable-hash-function-returns-f-on-eq-and-eqv-tabl.patch]
From 17599f6ce7ba0beb100e80455ff99af07333d871 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Taylan=20Ulrich=20Bay=C4=B1rl=C4=B1/Kammer?=
<taylanbayirli@gmail.com>
Date: Tue, 21 Jun 2016 00:23:29 +0200
Subject: [PATCH] Hashtable-hash-function returns #f on eq and eqv tables.
* module/rnrs/hashtables.scm (r6rs:hashtable)[type]: New field.
(r6rs:hashtable-type): New procedure.
* test-suite/tests/r6rs-hashtables.test: Add related tests.
Guile implements this library in terms of SRFI-69, which is a bit vague on
the arity of hash functions, whereas `(rnrs hashtables)' explicitly
specifies unary ones.
* module/rnrs/hashtables.scm (wrap-hash-function): Assume SRFI-69 will pass
the table capacity as the second argument; return the result of proc
modulo the capacity.
* test-suite/tests/r6rs-hashtables.test (make-hashtable): New test case for
hash functions that return large values.
