gnu: Add w3m.

* gnu/packages/w3m.scm,
  gnu/packages/patches/w3m-fix-compile.patch: New files.
* Makefile.am (MODULES): Add 'w3m.scm'.
  (dist_patch_DATA): Add 'w3m-fix-compile.patch'.

Makefile.am

@@ -163,6 +163,7 @@ MODULES =					\
   gnu/packages/tor.scm				\
   gnu/packages/vim.scm 				\
   gnu/packages/vpn.scm				\
+  gnu/packages/w3m.scm				\
   gnu/packages/wdiff.scm			\
   gnu/packages/wget.scm				\
   gnu/packages/which.scm			\
@@ -221,7 +222,8 @@ dist_patch_DATA =						\
   gnu/packages/patches/tar-gets-undeclared.patch		\
   gnu/packages/patches/tcsh-fix-autotest.patch 			\
   gnu/packages/patches/teckit-cstdio.patch			\
-  gnu/packages/patches/vpnc-script.patch
+  gnu/packages/patches/vpnc-script.patch			\
+  gnu/packages/patches/w3m-fix-compile.patch
 
 bootstrapdir = $(guilemoduledir)/gnu/packages/bootstrap
 bootstrap_x86_64_linuxdir = $(bootstrapdir)/x86_64-linux

gnu/packages/patches/w3m-fix-compile.patch

@@ -0,0 +1,15 @@
+https://bugs.archlinux.org/task/33397
+
+diff -aur old/main.c new/main.c
+--- main.c	2013-01-14 18:16:14.216210053 -0600
++++ main.c	2013-01-14 18:17:28.816220559 -0600
+@@ -833,7 +833,8 @@
+     mySignal(SIGPIPE, SigPipe);
+ #endif
+
+-    orig_GC_warn_proc = GC_set_warn_proc(wrap_GC_warn_proc);
++    orig_GC_warn_proc = GC_get_warn_proc();
++    GC_set_warn_proc(wrap_GC_warn_proc);
+     err_msg = Strnew();
+     if (load_argc == 0) {
+	/* no URL specified */

gnu/packages/w3m.scm

@@ -0,0 +1,81 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
+;;;
+;;; 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 w3m)
+  #:use-module ((guix licenses) #:select (x11-style))
+  #:use-module ((gnu packages gettext)
+                #:renamer (symbol-prefix-proc 'guix:))
+  #:use-module (gnu packages bdw-gc)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages openssl)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public w3m
+  (package
+    (name "w3m")
+    (version "0.5.3")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://sourceforge/w3m/w3m-"
+                          version ".tar.gz"))
+      (sha256
+       (base32
+        "1qx9f0kprf92r1wxl3sacykla0g04qsi0idypzz24b7xy9ix5579"))))
+    (build-system gnu-build-system)
+    (arguments `(#:tests? #f  ; no check target
+                 #:phases (alist-cons-before
+                           'configure 'fix-perl
+                           (lambda _
+                             ;; https://launchpad.net/bugs/935540
+                             ;; 'struct file_handle' is used by 'glibc'
+                             (substitute* '("istream.c" "istream.h")
+                              (("struct[[:blank:]]+file_handle")
+                               "struct w3m_file_handle"))
+                             (substitute* '("scripts/w3mmail.cgi.in"
+                                            "scripts/dirlist.cgi.in")
+                               (("@PERL@") (which "perl"))))
+                           %standard-phases)
+                 ;; cf. https://bugs.archlinux.org/task/33397
+                 #:patches (list (assoc-ref %build-inputs
+                                            "patch/fix-compile"))
+                 #:patch-flags '("-p0")))
+    (inputs
+     `(("gettext" ,guix:gettext)
+       ("libgc" ,libgc)
+       ("ncurses" ,ncurses)
+       ("openssl" ,openssl)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("zlib" ,zlib)
+       ("patch/fix-compile" ,(search-patch "w3m-fix-compile.patch"))))
+    (home-page "http://w3m.sourceforge.net/")
+    (synopsis "w3m, a text-mode web browser")
+    (description
+     "w3m is a text-based web browser as well as a pager like 'more' or
+'less'.  With w3m you can browse web pages through a terminal emulator
+window.  Moreover, w3m can be used as a text formatting tool which
+typesets HTML into plain text.")
+    (license (x11-style "file://doc/README"
+                        "See 'doc/README' in the distribution."))))