[PATCH] gnu: Add dlib.

[Marius Bakke]

Hi,

This adds the dlib machine learning toolkit.

Cheers,
Marius

>From 9a24f0bfd8a0375928d7accdc0ef744f4fa304a0 Mon Sep 17 00:00:00 2001
From: Marius Bakke <address@hidden>
Date: Sat, 13 Aug 2016 11:26:10 +0100
Subject: [PATCH] gnu: Add dlib.

* gnu/packages/machine-learning.scm (dlib): New variable.
---
 gnu/packages/machine-learning.scm | 55 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/machine-learning.scm 
b/gnu/packages/machine-learning.scm
index f96672c..6db0333 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2016 Ricardo Wurmus <address@hidden>
 ;;; Copyright © 2016 Efraim Flashner <address@hidden>
+;;; Copyright © 2016 Marius Bakke <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -32,13 +33,15 @@
   #:use-module (gnu packages compression)
   #:use-module (gnu packages dejagnu)
   #:use-module (gnu packages gcc)
+  #:use-module (gnu packages image)
   #:use-module (gnu packages maths)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
   #:use-module (gnu packages statistics)
   #:use-module (gnu packages swig)
-  #:use-module (gnu packages xml))
+  #:use-module (gnu packages xml)
+  #:use-module (gnu packages xorg))
 
 (define-public libsvm
   (package
@@ -467,3 +470,53 @@ geometric models.")
      "This package provides functions for feed-forward neural networks with a
 single hidden layer, and for multinomial log-linear models.")
     (license (list license:gpl2+ license:gpl3+))))
+
+(define-public dlib
+  (package
+    (name "dlib")
+    (version "19.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://dlib.net/files/dlib-"; version ".tar.bz2"))
+              (sha256
+               (base32
+                "0a4xilzhb78ffpcyq2fipri80bmlgrl5ngr7r3jygdr9p7v3z4dn"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  ;; Delete ~13MB of bundled dependencies.
+                  (delete-file-recursively "dlib/external")
+                  (delete-file-recursively "docs/dlib/external")))))
+    (build-system cmake-build-system)
+    (arguments
+     `(#:phases
+       (let ((test-dir (string-append "../dlib-" ,version "/dlib/test/build")))
+         (modify-phases %standard-phases
+           (add-before 'check 'build-test-suite
+             ;; No test target, so we build and run the unit tests here.
+             (lambda _
+               (mkdir-p test-dir)
+               (chdir test-dir)
+               (zero? (system* "cmake" ".."))
+               (zero? (system* "cmake" "--build" "." "--config" "Release"))))
+           (replace 'check
+             (lambda _ (zero? (system* "./dtest" "--runall"))))
+           (add-after 'check 'ascend-to-build-directory
+             (lambda _ (chdir "../../../../build") #t))))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("lapack" ,lapack)
+       ("libjpeg" ,libjpeg)
+       ("libpng" ,libpng)
+       ("libx11" ,libx11)
+       ("openblas" ,openblas)
+       ("zlib" ,zlib)))
+    (synopsis "Toolkit for making machine learning and data analysis 
applications in C++")
+    (description
+     "Dlib is a modern C++ toolkit containing machine learning algorithms and 
tools.  It
+is used in both industry and academia in a wide range of domains including 
robotics,
+embedded devices, mobile phones, and large high performance computing 
environments.")
+    (home-page "http://dlib.net";)
+    (license license:boost1.0)))
-- 
2.9.2