;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Nikita Karetnikov <nikita@karetnikov.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 coq)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages ocaml))

(define-public coq
  (package
    (name "coq")
    (version "8.4pl5")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "https://" name ".inria.fr/distrib/V" version
                          "/files/" name "-" version ".tar.gz"))
      (sha256
       (base32
        "0iajsabyrgypk1ncm0kqcxqv02k24xa1bayaxacjgmsqiavmm09m"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
        (alist-replace 'configure
                      (lambda* (#:key outputs #:allow-other-keys)
                        ;; This 'configure' script doesn't support
                        ;; variables passed as arguments.
                        (let ((out (assoc-ref outputs "out")))
                          (setenv "CONFIG_SHELL" (which "bash"))
                          (zero?
                           ;; 'configure' does not recognize the flags if you
                           ;; use 'system*'.
                           (system (string-append "./configure"
                                                  " -prefix " out
                                                  " -camldir "
                                                  (dirname (which "ocaml")))))))
                      (alist-replace 'build
                                     (lambda _
                                       (system* "make" "world"))
                                     (alist-replace 'check
                                                    (lambda _
                                                      (chdir "test-suite")
                                                      (system* "make" "check")
                                                      (chdir ".."))
                                                    %standard-phases)))))
    (native-inputs
     `(("ocaml" ,ocaml)
       ("bzip2" ,bzip2)))
    (home-page "https://coq.inria.fr")
    (synopsis "Formal proof management system")
    (description
     "Coq is a formal proof management system.  It provides a formal language
to write mathematical definitions, executable algorithms and theorems together
with an environment for semi-interactive development of machine-checked
proofs.  Typical applications include the certification of properties of
programming languages, the formalization of mathematics (e.g., the full
formalization of the Feit-Thompson theorem or homotopy type theory) and
teaching.")
    (license lgpl2.1)))