gnu: Add libdaemon.

* gnu/packages/libdaemon.scm: New file.
* Makefile.am (MODULES): Add it.

Makefile.am

@@ -98,6 +98,7 @@ MODULES =					\
   gnu/packages/ld-wrapper.scm			\
   gnu/packages/less.scm				\
   gnu/packages/libapr.scm 			\
+  gnu/packages/libdaemon.scm			\
   gnu/packages/libevent.scm			\
   gnu/packages/libffi.scm			\
   gnu/packages/libidn.scm			\

gnu/packages/libdaemon.scm

@@ -0,0 +1,61 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.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 libdaemon)
+  #:use-module (guix licenses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public libdaemon
+  (package
+    (name "libdaemon")
+    (version "0.14")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append
+                   "http://0pointer.de/lennart/projects/libdaemon/libdaemon-"
+                   version
+                   ".tar.gz"))
+             (sha256
+              (base32
+               "0d5qlq5ab95wh1xc87rqrh1vx6i8lddka1w3f1zcqvcqdxgyn8zx"))))
+    (build-system gnu-build-system)
+    (home-page "http://0pointer.de/lennart/projects/libdaemon/")
+    (synopsis "Lightweight C library that eases the writing of UNIX daemons")
+    (description
+     "libdaemon is a lightweight C library that eases the writing of UNIX
+daemons. It consists of the following parts:
+
+  • A wrapper around fork() which does the correct daemonization procedure of
+    a process
+
+  • A wrapper around syslog() for simpler and compatible log output to Syslog
+    or STDERR
+
+  • An API for writing PID files
+
+  • An API for serializing UNIX signals into a pipe for usage with select() or
+    poll()
+
+  • An API for running subprocesses with STDOUT and STDERR redirected to
+    syslog.
+
+APIs like these are used in most daemon software available. It is not that
+simple to get it done right and code duplication is not a goal.")
+    (license lgpl2.1+)))