distro: Add GNU idutils.

* distro/packages/idutils.scm: New file.
* Makefile.am (MODULES): Add it.

Makefile.am

@@ -66,6 +66,7 @@ MODULES =					\
   distro/packages/gperf.scm			\
   distro/packages/guile.scm			\
   distro/packages/help2man.scm			\
+  distro/packages/idutils.scm			\
   distro/packages/ld-wrapper.scm		\
   distro/packages/less.scm			\
   distro/packages/libffi.scm			\

distro/packages/idutils.scm

@@ -0,0 +1,65 @@
+;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; 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.
+;;;
+;;; 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 Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (distro packages idutils)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix licenses)
+  #:use-module (distro))
+
+(define-public idutils
+  (package
+    (name "idutils")
+    (version "4.6")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://gnu/idutils/idutils-"
+                          version ".tar.xz"))
+      (sha256
+       (base32
+        "1hmai3422iaqnp34kkzxdnywl7n7pvlxp11vrw66ybxn9wxg90c1"))))
+    (build-system gnu-build-system)
+    (inputs `(;; TODO: Add Emacs as an input for byte-compilation.
+              ;; ("emacs" ,emacs)
+              ("patch/gets"
+               ,(search-patch "diffutils-gets-undeclared.patch"))))
+    (arguments `(#:patches (list (assoc-ref %build-inputs "patch/gets"))))
+    (home-page "http://www.gnu.org/software/idutils/")
+    (synopsis "GNU Idutils, a text searching utility")
+    (description
+     "An \"ID database\" is a binary file containing a list of file
+names, a list of tokens, and a sparse matrix indicating which
+tokens appear in which files.
+
+With this database and some tools to query it, many
+text-searching tasks become simpler and faster.  For example,
+you can list all files that reference a particular `\\#include'
+file throughout a huge source hierarchy, search for all the
+memos containing references to a project, or automatically
+invoke an editor on all files containing references to some
+function or variable.  Anyone with a large software project to
+maintain, or a large set of text files to organize, can benefit
+from the ID utilities.
+
+Although the name `ID' is short for `identifier', the ID
+utilities handle more than just identifiers; they also treat
+other kinds of tokens, most notably numeric constants, and the
+contents of certain character strings.")
+    (license gpl3+)))