gnu: Add tilda.

* gnu/packages/terminals.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu-system.am

@@ -302,6 +302,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/tcl.scm				\
   gnu/packages/tcsh.scm				\
   gnu/packages/telephony.scm			\
+  gnu/packages/terminals.scm			\
   gnu/packages/texinfo.scm			\
   gnu/packages/texlive.scm			\
   gnu/packages/textutils.scm			\

gnu/packages/terminals.scm

@@ -0,0 +1,72 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Efraim Flashner <efraim@flashner.co.il>
+;;;
+;;; 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 terminals)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build utils)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix download)
+  #:use-module (guix packages)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages gettext)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages gnome)
+  #:use-module (gnu packages gtk)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages wm)
+  #:use-module (gnu packages zip))
+
+(define-public tilda
+  (package
+    (name "tilda")
+    (version "1.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/lanoxx/tilda/archive/"
+                                  "tilda-" version ".zip"))
+              (sha256
+               (base32
+                "06r7q0b1xjclagsnw0ilxhw5az5ddly2f7xc1lcwlrf337x0jrar"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                 (add-before 'patch-source-shebangs 'autogen
+                  (lambda _       ; Avoid running ./configure.
+                   (substitute* "autogen.sh"
+                                (("^.*\\$srcdir/configure.*") ""))
+                   (zero? (system* "sh" "autogen.sh")))))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("gettext" ,gnu-gettext)
+       ("pkg-config" ,pkg-config)
+       ("unzip" ,unzip)))
+    (inputs
+     `(("glib" ,glib "bin")
+       ("gtk+" ,gtk+)
+       ("libconfuse" ,libconfuse)
+       ("vte" ,vte-0.36))) ; TODO: try to use vte-0.38+ in 1.3
+                           ; https://github.com/lanoxx/tilda/issues/94
+    (synopsis "GTK+-based drop-down terminal")
+    (description "Tilda is a terminal emulator similar to normal terminals like
+gnome-terminal (GNOME) or Konsole (KDE), with the difference that it drops down
+from the edge of a screen when a certain configurable hotkey is pressed.  This
+is similar to the built-in consoles in some applications.  Tilda is highly
+configureable through a graphical wizard.")
+    (home-page "https://github.com/lanoxx/tilda")
+    (license license:gpl2+)))