gnu: Add cereal.

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

gnu-system.am

@@ -288,6 +288,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/scribus.scm			\
   gnu/packages/sdl.scm				\
   gnu/packages/search.scm			\
+  gnu/packages/serialization.scm		\
   gnu/packages/serveez.scm			\
   gnu/packages/shishi.scm			\
   gnu/packages/skarnet.scm			\

gnu/packages/serialization.scm

@@ -0,0 +1,74 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.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 serialization)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system cmake)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages doxygen))
+
+(define-public cereal
+  (package
+    (name "cereal")
+    (version "1.1.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/USCiLab/cereal/archive/v"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "13bvsfzvm7yyp97k20iznq2j14dj3qiczvpq7g8897njw46psq25"))))
+    (build-system cmake-build-system)
+    (arguments
+     `(;; The only included tests are portability tests requiring
+       ;; cross-compilation and boost.  Since we are building cereal on more
+       ;; platforms anyway, there is no compelling reason to build the tests.
+       #:tests? #f
+       #:out-of-source? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+          (lambda _
+            (substitute* "doc/doxygen.in"
+              (("@CMAKE_CURRENT_SOURCE_DIR@") "."))
+            (zero? (system* "doxygen" "doc/doxygen.in"))))
+         ;; There is no "install" target, so we have to provide our own
+         ;; "install" phase.
+         (replace 'install
+          (lambda* (#:key outputs #:allow-other-keys)
+            (let* ((out     (assoc-ref outputs "out"))
+                   (doc     (string-append out "/share/cereal/docs"))
+                   (include (string-append out "/include/cereal")))
+              (mkdir-p doc)
+              (mkdir-p include)
+              (copy-recursively "include/cereal" include)
+              (copy-recursively "doc/html" doc))
+            #t)))))
+    (native-inputs
+     `(("doxygen" ,doxygen)))
+    (home-page "http://uscilab.github.io/cereal/")
+    (synopsis "C++11 library for serialization")
+    (description
+     "Cereal is a header-only C++11 serialization library.  Cereal takes
+arbitrary data types and reversibly turns them into different representations,
+such as compact binary encodings, XML, or JSON.")
+    (license license:bsd-3)))