;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 John Darrington <jmd@gnu.org>
;;; Copyright © 2015, 2016 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 links)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (gnu packages)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages image)
  #:use-module (gnu packages libevent)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages xorg)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public links
  (package
    (name "links")
    (version "2.13")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://links.twibright.com/download/"
                                  name "-" version ".tar.bz2"))
              (sha256
               (base32 "01a4mbpvf7450ymqarjkpmzrm0z2zyd9lvqwg7x9kcd36i9hjln2"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda* (#:key outputs #:allow-other-keys)
             ;; The tarball uses a very old version of autconf. It doesn't
             ;; understand extra flags like `--enable-fast-install', so
             ;; we need to invoke it with just what it understands.
             (let ((out (assoc-ref outputs "out")))
               ;; 'configure' doesn't understand '--host'.
               ,@(if (%current-target-system)
                     `((setenv "CHOST" ,(%current-target-system)))
                     '())
               (setenv "CONFIG_SHELL" (which "bash"))
               (zero?
                (system* "./configure"
                         (string-append "--prefix=" out)
                         "--enable-graphics"))))))))
    (native-inputs `(("pkg-config" ,pkg-config)))
    (inputs `(("zlib" ,zlib)
              ("openssl" ,openssl)
              ("libjpeg" ,libjpeg)
              ("libtiff" ,libtiff)
              ("libevent" ,libevent)
              ("libpng" ,libpng)
              ("libxt" ,libxt)))
    (synopsis "Text and graphics mode web browser")
    (description "Links is a graphics and text mode web browser, with many
features including, tables, builtin image display, bookmarks, SSL and more.")
    (home-page "http://links.twibright.com")
    ;; The distribution contains a copy of GPLv2
    ;; However, the copyright notices simply say:
    ;; "This file is a part of the Links program, released under GPL."
    ;; Therefore, under the provisions of Section 9, we can choose
    ;; any version ever published by the FSF.
    ;; One file (https.c) contains an exception permitting
    ;; linking of the program with openssl.
    (license license:gpl1+)))
