gnu: Add ola.

* gnu/packages/ola.scm (ola): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/local.mk

@@ -213,6 +213,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/libusb.scm			\
   %D%/packages/libunwind.scm			\
   %D%/packages/libupnp.scm			\
+  %D%/packages/lighting.scm                     \
   %D%/packages/links.scm			\
   %D%/packages/linux.scm			\
   %D%/packages/lirc.scm				\

gnu/packages/lighting.scm

@@ -0,0 +1,75 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 John J. Foerch <jjfoerch@earthlink.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 lighting)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (gnu packages bison)
+  #:use-module (gnu packages check)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages gnunet)
+  #:use-module (gnu packages flex)
+  #:use-module (gnu packages libftdi)
+  #:use-module (gnu packages libusb)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages protobuf))
+
+(define-public ola
+  (package
+    (name "ola")
+    (version "0.10.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/OpenLightingProject/ola/releases/download/"
+                    version "/ola-" version ".tar.gz"))
+              (sha256
+               (base32
+                "09zx1c8nkj29shfdzkahrh9397m3mwnsy0gj7jrb63f89f3n2vlq"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("bison" ,bison)
+       ("cppunit" ,cppunit)
+       ("flex" ,flex)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("libftdi" ,libftdi)
+       ("libmicrohttpd" ,libmicrohttpd)
+       ("libusb" ,libusb)
+       ("libuuid" ,util-linux)
+       ("zlib" ,zlib)))
+    (propagated-inputs
+     `(("protobuf" ,protobuf))) ;; for pkg-config --libs libola
+    (arguments
+     `(;; G++ >= 4.8 macro expansion tracking requires lots of memory, causing
+       ;; build to fail on low memory systems.  We disable that with the
+       ;; following configure flags.
+       #:configure-flags (list "CXXFLAGS=-ftrack-macro-expansion=0")))
+    (synopsis "Framework for controlling entertainment lighting equipment")
+    (description "The Open Lighting Architecture is a framework for lighting
+control information.  It supports a range of protocols and over a dozen USB
+devices.  It can run as a standalone service, which is useful for converting
+signals between protocols, or alternatively using the OLA API, it can be used
+as the backend for lighting control software.  OLA runs on many different
+platforms including ARM, which makes it a perfect fit for low cost Ethernet to
+DMX gateways.")
+    (home-page "https://www.openlighting.org/ola")
+    (license license:lgpl2.1+)))