gnu: Add PCRE (Perl Compatible Regular Expression).

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

Makefile.am

@@ -117,6 +117,7 @@ MODULES =					\
   gnu/packages/oggvorbis.scm			\
   gnu/packages/openldap.scm			\
   gnu/packages/openssl.scm			\
+  gnu/packages/pcre.scm				\
   gnu/packages/pdf.scm				\
   gnu/packages/perl.scm				\
   gnu/packages/pkg-config.scm			\

gnu/packages/pcre.scm

@@ -0,0 +1,55 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
+;;;
+;;; 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 pcre)
+  #:use-module ((guix licenses)
+                #:renamer (symbol-prefix-proc 'license:))
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages readline)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public pcre
+  (package
+   (name "pcre")
+   (version "8.32")
+   (source (origin
+            (method url-fetch)
+            (uri (string-append "mirror://sourceforge/pcre/pcre/"
+                                version "/pcre-" version ".tar.bz2"))
+            (sha256
+             (base32
+              "0m8gvrf1q0iwll4csirvvj98xygw4cy7r14i5l53ivsqs2dzn4x9"))))
+   (build-system gnu-build-system)
+   (inputs `(("bzip2" ,bzip2)
+             ("readline" ,readline)
+             ("zlib" ,zlib)))
+   (arguments
+    `(#:configure-flags '("--enable-utf"
+                          "--enable-pcregrep-libz"
+                          "--enable-pcregrep-libbz2"
+                          "--enable-pcretest-libreadline")))
+   (synopsis "PCRE, Perl Compatible Regular Expressions")
+   (description
+    "The PCRE library is a set of functions that implement regular expression
+pattern matching using the same syntax and semantics as Perl 5. PCRE has its
+own native API, as well as a set of wrapper functions that correspond to the
+POSIX regular expression API.")
+   (license license:bsd-3)
+   (home-page "http://www.pcre.org/")))