;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 John Darrington <jmd@gnu.org>
;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2015, 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2016 Kei Kebreau <kkebreau@posteo.net>
;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2018 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
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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tests? #f                      ;TODO: compile programs in "test" dir
       #:configure-flags
       (list "--enable-shared"
             (string-append "DSOFLAGS=-Wl,-rpath=" %output "/lib"))
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'patch-makeinclude
           (lambda _
             (substitute* "makeinclude.in"
               (("/bin/sh") (which "sh")))
             #t))
         (add-after 'install 'patch-config
           ;; Provide -L flags for image libraries when querying fltk-config to
           ;; avoid propagating inputs.
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((conf (string-append (assoc-ref outputs "out")
                                        "/bin/fltk-config"))
                   (jpeg (assoc-ref inputs "libjpeg"))
                   (png  (assoc-ref inputs "libpng"))
                   (zlib (assoc-ref inputs "zlib")))
               (substitute* conf
                 (("-ljpeg") (string-append "-L" jpeg "/lib -ljpeg"))
                 (("-lpng") (string-append "-L" png "/lib -lpng"))
                 (("-lz") (string-append "-L" zlib "/lib -lz"))))
             #t)))))
    (home-page "https://www.fltk.org")
    (synopsis "3D C++ GUI library")
    (description "FLTK is a C++ GUI toolkit providing modern GUI functionality
without the bloat.  It supports 3D graphics via OpenGL and its built-in GLUT
emulation.  FLTK is designed to be small and modular enough to be statically
linked, but works fine as a shared library.  FLTK also includes an excellent
UI builder called FLUID that can be used to create applications in minutes.")
    (license lgpl2.0))) ; plus certain additional permissions

(define-public ntk
  (package
    (name "ntk")
    (version "1.3.1000")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "git://git.tuxfamily.org/gitroot/non/fltk.git")
                    (commit (string-append "v" version))))
              (sha256
               (base32
                "0j38mhnfqy6swcrnc5zxcwlqi8b1pgklyghxk6qs1lf4japv2zc0"))
              (file-name (git-file-name name version))))
    (build-system waf-build-system)
    (arguments
     `(#:tests? #f ;no "check" target
       #:configure-flags '("--enable-gl")
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'setup-waf
          (lambda* (#:key inputs #:allow-other-keys)
            (let ((waf (assoc-ref inputs "waf")))
              (delete-file "waf")
              (copy-file (string-append waf "/bin/waf") "waf"))
            #t))
         (add-before 'configure 'set-ldflags
           (lambda* (#:key outputs #:allow-other-keys)
             (setenv "LDFLAGS"
                     (string-append "-Wl,-rpath="
                                    (assoc-ref outputs "out") "/lib"))
             #t)))))
    (inputs
     `(("libjpeg" ,libjpeg-turbo)
       ("glu" ,glu)
       ("waf" ,python-waf)))
    ;; ntk.pc lists "x11" and "xft" in Requires.private, and "cairo" in
    ;; Requires.
    (propagated-inputs
     `(("cairo" ,cairo)
       ("libxft" ,libxft)
       ("libx11" ,libx11)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://non.tuxfamily.org/ntk/")
    (synopsis "Fork of FLTK with graphics rendering via Cairo")
    (description "The Non Tool Kit (NTK) is a fork of the Fast Light ToolKit
library, adding improved graphics rendering via Cairo, a streamlined and
enhanced widget set, and other features designed to improve the appearance and
performance of the Non applications.")
    (license lgpl2.0+))) ; plus certain additional permissions