gnu: Add NQC.

* gnu/packages/lego.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu-system.am

@@ -177,6 +177,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/kodi.scm				\
   gnu/packages/language.scm			\
   gnu/packages/ldc.scm				\
+  gnu/packages/lego.scm				\
   gnu/packages/less.scm				\
   gnu/packages/lesstif.scm			\
   gnu/packages/libcanberra.scm			\

gnu/packages/lego.scm

@@ -0,0 +1,67 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
+;;;
+;;; 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 lego)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix download)
+  #:use-module (guix packages)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages bison)
+  #:use-module (gnu packages flex))
+
+(define-public nqc
+  (package
+    (name "nqc")
+    (version "3.1.r6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://bricxcc.sourceforge.net/nqc/release/"
+                                  "nqc-" version ".tgz"))
+              (sha256
+               (base32
+                "0rp7pzr8xrdxpv75c2mi8zszzz2ypli4vvzxiic7mbrryrafdmdz"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("bison" ,bison)
+       ("flex" ,flex)))
+    (arguments
+     '(#:tests? #f                      ;no tests
+       #:make-flags (list (string-append "PREFIX=" %output))
+       #:phases (modify-phases %standard-phases
+                  (delete 'configure)
+                  (add-before 'build 'rm-generated
+                    ;; Regenerating compiler/lexer.cpp avoids an 'undefined
+                    ;; reference to `isatty(int)'' error.
+                    (lambda _
+                      (for-each delete-file
+                                '("compiler/lexer.cpp"
+                                  "compiler/parse.cpp"))
+                      #t))
+                  (add-after 'unpack 'deal-with-tarbomb
+                    (lambda _
+                      (chdir "..")      ;tarbomb
+                      #t)))))
+    (home-page "http://bricxcc.sourceforge.net/nqc/")
+    (synopsis "C-like language for Lego's MINDSTORMS")
+    (description
+     "Not Quite C (NQC) is a simple language for programming several Lego
+MINDSTORMS products.  The preprocessor and control structures of NQC are very
+similar to C.  NQC is not a general purpose language -- there are many
+restrictions that stem from limitations of the standard RCX firmware.")
+    (license license:mpl1.0)))