[bug#43183] [PATCH] gnu: Add loko-scheme.

[Martin Becze <mjbecze@riseup.net>]

* gnu/packages/loko.scm (loko-scheme): New variable.
---
 gnu/local.mk          |   2 +
 gnu/packages/loko.scm | 124 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 126 insertions(+)
 create mode 100644 gnu/packages/loko.scm

diff --git a/gnu/local.mk b/gnu/local.mk
index 6e47d74e0a..fef66aea19 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -36,6 +36,7 @@
 # Copyright © 2020 Jan Wielkiewicz <tona_kosmicznego_smiecia@interia.pl>
 # Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
 # Copyright © 2020 Tanguy Le Carrour <tanguy@bioneland.org>
+# Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 #
 # This file is part of GNU Guix.
 #
@@ -342,6 +343,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/lout.scm				\
   %D%/packages/logging.scm			\
   %D%/packages/logo.scm				\
+  %D%/packages/loko.scm				\
   %D%/packages/lolcode.scm                      \
   %D%/packages/lsof.scm				\
   %D%/packages/lua.scm				\
diff --git a/gnu/packages/loko.scm b/gnu/packages/loko.scm
new file mode 100644
index 0000000000..4830b845c9
--- /dev/null
+++ b/gnu/packages/loko.scm
@@ -0,0 +1,124 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix 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 Guix 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 Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages loko)
+  #:use-module (guix packages)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system gnu)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages package-management)
+  #:use-module (gnu packages chez))
+
+(define pfds
+  (let ((name "pfds")
+	(version "0.3"))
+      (origin
+	(method git-fetch)
+	(uri (git-reference
+	      (url "https://github.com/ijp/pfds.git")
+	      (commit (string-append "v" version))))
+	(file-name (git-file-name name version))
+	(sha256
+	 (base32 "19y33wg94pf0n98dkfqd1zbw93fgky4sawxsxl6s3vyqwl0yi5vh")))))
+
+(define machine-code
+  (let ((name "machine-code")
+	(version "2.1.0"))
+      (origin
+	(method git-fetch)
+	(uri (git-reference
+	      (url "https://github.com/weinholt/machine-code.git")
+	      (commit (string-append "v" version))))
+	(file-name (git-file-name name version))
+	(sha256
+	 (base32 "0wzj3caj2jypzyjqfkfqkvr3kkbjabsnhldv9kvnx9w9qnria5yd")))))
+
+(define struct-pack
+  (let ((name "struct-pack")
+	(version "1.1.1"))
+      (origin
+	(method git-fetch)
+	(uri (git-reference
+	      (url "https://github.com/weinholt/struct-pack.git")
+	      (commit (string-append "v" version))))
+	(file-name (git-file-name name version))
+	(sha256
+	 (base32 "0hd72m821pahjphzyjn26i55542v8makr55xzjll2cycja4wsbc1")))))
+
+(define laesare
+  (let ((name "laesare")
+	(version "1.0.0"))
+      (origin
+	(method git-fetch)
+	(uri (git-reference
+	      (url "https://github.com/weinholt/laesare.git")
+	      (commit (string-append "v" version))))
+	(file-name (git-file-name name version))
+	(sha256
+	 (base32 "15q619gzw717r8r1ql23zfdaibpnp9qqs96032vdc3rj74msxc92")))))
+
+(define-public loko-scheme
+  (package
+    (name "loko-scheme")
+    (version "0.6.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.com/weinholt/loko.git")
+                    (commit (string-append "v" version))))
+              (sha256 (base32 "019jlh3lywy912cfz689c9fxgf4bi5700i9k04g7sl5w5gchj36m"))
+              (file-name (git-file-name name version))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:tests? #f
+       #:strip-binaries? #f
+       #:make-flags
+       (let ((out (assoc-ref %outputs "out")))
+         (list
+          (string-append "PREFIX=" out)
+          (string-append "GDB_AUTOLOAD_PATH=" out "/share/gdb/auto-load")))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (add-before 'build 'akku-fixes
+           (lambda* (#:key inputs #:allow-other-keys)
+             (delete-file "Akku.lock")
+             (substitute* "Akku.manifest"
+               (("\\(depends.*") "(depends)"))
+             (invoke "akku" "install")
+             (symlink (assoc-ref inputs "struct-pack") "./.akku/lib/struct")
+             (symlink (assoc-ref inputs "laesare") "./.akku/lib/laesare")
+             (symlink (assoc-ref inputs "machine-code") "./.akku/lib/machine-code")
+             (symlink (assoc-ref inputs "pfds") "./.akku/lib/pfds")
+             (substitute* ".akku/env"
+               (("/bin/sh") (which "sh")))
+             #t)))))
+    (native-inputs
+     `(("akku" ,akku)
+       ("chez-scheme" ,chez-scheme)
+       ("struct-pack" ,struct-pack)
+       ("laesare" ,laesare)
+       ("pfds" ,pfds)
+       ("machine-code" ,machine-code)))
+    (home-page "https://scheme.fail")
+    (synopsis "Implementation of the algorithmic language Scheme")
+    (description
+     "Loko Scheme is intended to be a platform for application and operating system
+development.  It is written purely in Scheme and some assembler (i.e. no C code at
+the bottom).  Both the R6RS and the R7RS standards are supported.")
+    (license license:agpl3+)))
-- 
2.28.0