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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2012 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 readline)
+  #:use-module (guix licenses)
+  #:use-module (distro)
+  #:use-module (gnu packages ncurses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix utils)
+  #:use-module (guix build-system gnu))
+
+(define-public readline
+  (let ((post-install-phase
+         '(lambda* (#:key outputs #:allow-other-keys)
+            (let* ((out (assoc-ref outputs "out"))
+                   (lib (string-append out "/lib")))
+              ;; Make libraries writable so that `strip' can work.
+              ;; Failing to do that, it bails out with "Permission
+              ;; denied".
+              (for-each (lambda (f) (chmod f #o755))
+                        (find-files lib "\\.so"))
+              (for-each (lambda (f) (chmod f #o644))
+                        (find-files lib "\\.a"))))))
+    (package
+      (name "readline")
+      (version "6.2")
+      (source (origin
+               (method url-fetch)
+               (uri (string-append "mirror://gnu/readline/readline-"
+                                   version ".tar.gz"))
+               (sha256
+                (base32
+                 "10ckm2bd2rkxhvdmj7nmbsylmihw0abwcsnxf8y27305183rd9kr"))))
+      (build-system gnu-build-system)
+      (propagated-inputs `(("ncurses" ,ncurses)))
+      (inputs `(("patch/link-ncurses"
+                 ,(search-patch "readline-link-ncurses.patch"))))
+      (arguments `(#:patches (list (assoc-ref %build-inputs
+                                              "patch/link-ncurses"))
+                   #:patch-flags '("-p0")
+                   #:configure-flags
+                   (list (string-append "LDFLAGS=-Wl,-rpath -Wl,"
+                                        (assoc-ref %build-inputs "ncurses")
+                                        "/lib"))
+
+                   #:phases (alist-cons-after
+                             'install 'post-install
+                             ,post-install-phase
+                             %standard-phases)))
+      (synopsis "GNU Readline, a library for interactive line editing")
+      (description
+       "The GNU Readline library provides a set of functions for use by
+applications that allow users to edit command lines as they are typed in.
+Both Emacs and vi editing modes are available.  The Readline library includes
+additional functions to maintain a list of previously-entered command lines,
+to recall and perhaps reedit those lines, and perform csh-like history
+expansion on previous commands.
+
+The history facilites are also placed into a separate library, the History
+library, as part of the build process.  The History library may be used
+without Readline in applications which desire its capabilities.")
+      (license gpl3+)
+      (home-page "http://savannah.gnu.org/projects/readline/"))))