Add mes and mescc-tools-extra

mescc-tools-extra contains two important tools:
- cp
- chmod

mes first builds itself from a mes 0.21 seed as used by guix, and then
builds a mes 0.22 and then mes 0.22 using that created mes 0.22.

It does /not/ use bootstrap.sh as we don't have a proper shell at this
point, it has been manually adapted for kaem.

sysa/mes-0.22/tests/fluids.test

@@ -0,0 +1,69 @@
+#! /bin/sh
+# -*-scheme-*-
+exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests fluids)' -s "$0" "$@"
+!#
+
+;;; -*-scheme-*-
+
+;;; GNU Mes --- Maxwell Equations of Software
+;;; Copyright © 2016 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of GNU Mes.
+;;;
+;;; GNU Mes is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Mes 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 General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (tests fluids)
+  #:use-module (mes mes-0)
+  #:use-module (mes test))
+
+(mes-use-module (mes fluids))
+(mes-use-module (mes test))
+
+(define a (make-fluid))
+(define b (make-fluid))
+(define c #f)
+
+(pass-if "fluid?" (fluid? a))
+(pass-if-not "fluid? not" (fluid? c))
+(pass-if-not "fluid-ref"
+             (fluid-ref a))
+
+(pass-if "with-fluid*"
+  (with-fluid* a #t (lambda () (fluid-ref a))))
+
+(pass-if-not "with-fluid* reset"
+             (begin
+               (with-fluid* a #t (lambda () (fluid-ref a)))
+               (fluid-ref a)))
+
+;; (pass-if-equal "with fluids*"
+;;     0 (with-fluids* (list a b) '(0 1)
+;;                     (lambda () (fluid-ref a))))
+
+(pass-if-eq "with-fluids"
+    0 (with-fluids ((a 1)
+                    (a 2)
+                    (a 3))
+        (fluid-set! a 0)
+        (fluid-ref a)))
+
+(pass-if-eq "with-fluids"
+    #f (begin
+         (with-fluids ((a 1)
+                       (b 2))
+           (fluid-set! a 0)
+           (display "X:") (display (fluid-ref a)) (newline))
+         (fluid-ref a)))
+
+(result 'report)