gnu: Add libnet6.

* gnu/packages/gobby.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add new file.

gnu/local.mk

@@ -156,6 +156,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/gnustep.scm			\
   %D%/packages/gnuzilla.scm			\
   %D%/packages/gnu-pw-mgr.scm			\
+  %D%/packages/gobby.scm			\
   %D%/packages/golang.scm			\
   %D%/packages/gperf.scm			\
   %D%/packages/gprolog.scm			\

gnu/packages/gobby.scm

@@ -0,0 +1,68 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Andy Wingo <wingo@igalia.com>
+;;;
+;;; 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 gobby)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix utils)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages gnome)
+  #:use-module (gnu packages gtk)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages xml))
+
+(define-public libnet6
+  (package
+    (name "libnet6")
+    (version "1.3.14")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://releases.0x539.de/net6/net6-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "088yqq60wjx3jqjlhl12893p15gl9asjpavrbhh590qzpqndhp8m"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (arguments
+     `(#:configure-flags
+       '("CXXFLAGS=-std=c++11")         ; required by libsigc++
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'update-gnutls-api
+           (lambda _
+             (substitute* "src/encrypt.cpp"
+               ;; The GnuTLS API to set authentication and other parameters
+               ;; and priorities changed in 3.4; update to allow ANON_DH via
+               ;; the new API.
+               (("gnutls_kx_set_priority\\(session, kx_prio\\)")
+                (string-append "gnutls_priority_set_direct"
+                               "(session, \"NORMAL:+ANON-DH\", NULL)"))))))))
+    (inputs
+     `(("libsigc++" ,libsigc++)
+       ("gnutls" ,gnutls)))
+    (home-page "https://gobby.github.io/")
+    (synopsis "Network access framework for IPv4/IPv6")
+    (description
+     "Library which that provides a TCP protocol abstraction for C++.")
+    (license license:lgpl2.1)))