* module/scheme/comparator.sld: New R7RS library shim for SRFI 128.
* am/bootstrap.am (SOURCES): Register it.
* NEWS: Update NEWS.

---

Changes in v5:
 - Update NEWS

 NEWS                         |  1 +
 am/bootstrap.am              |  1 +
 module/scheme/comparator.sld | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 module/scheme/comparator.sld

diff --git a/NEWS b/NEWS
index 31107a76d..45023d9fb 100644
--- a/NEWS
+++ b/NEWS
@@ -23,6 +23,7 @@ the compiler reports it as "possibly unused".
 
 ** Add (srfi 126), a hash tables library
 ** Add (srfi 128), a comparators library
+** Add (scheme comparator)
 
 * Bug fixes
 
diff --git a/am/bootstrap.am b/am/bootstrap.am
index 4404113ab..614d56d0d 100644
--- a/am/bootstrap.am
+++ b/am/bootstrap.am
@@ -277,6 +277,7 @@ SOURCES =                                   \
   scheme/base.scm                              \
   scheme/case-lambda.scm                       \
   scheme/char.scm                              \
+  scheme/comparator.sld                                \
   scheme/complex.scm                           \
   scheme/cxr.scm                               \
   scheme/eval.scm                              \
diff --git a/module/scheme/comparator.sld b/module/scheme/comparator.sld
new file mode 100644
index 000000000..5016e4392
--- /dev/null
+++ b/module/scheme/comparator.sld
@@ -0,0 +1,33 @@
+;;; comparator.sld --- R7RS library exposing SRFI 128.
+
+;;; Copyright (C) 2023 Free Software Foundation, Inc.
+;;;
+;;; This library is free software: you can redistribute it and/or modify
+;;; it under the terms of the GNU Lesser General Public License as
+;;; published by the Free Software Foundation, either version 3 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; This library is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;; Lesser General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public
+;;; License along with this program.  If not, see
+;;; <http://www.gnu.org/licenses/>.
+
+(define-library (scheme comparator)
+  (export comparator? comparator-ordered? comparator-hashable?
+          make-comparator
+          make-pair-comparator make-list-comparator make-vector-comparator
+          make-eq-comparator make-eqv-comparator make-equal-comparator
+          boolean-hash char-hash char-ci-hash
+          string-hash string-ci-hash symbol-hash number-hash
+          make-default-comparator default-hash comparator-register-default!
+          comparator-type-test-predicate comparator-equality-predicate
+          comparator-ordering-predicate comparator-hash-function
+          comparator-test-type comparator-check-type comparator-hash
+          hash-bound hash-salt
+          =? <? >? <=? >=?
+          comparator-if<=>)
+  (import (srfi 128)))
-- 
2.41.0


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