;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2015, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019 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 bison)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages m4)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages flex)
  #:use-module (srfi srfi-1))

(define-public bison
  (package
    (name "bison")
    (version "3.4.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://gnu/bison/bison-"
                          version ".tar.xz"))
      (sha256
       (base32
        "03c2pmq3bs0drdislnz6gm1rwz3n4pb2rz9navyxydppxg2rl597"))))
    (build-system gnu-build-system)
    (arguments
     '(;; Building in parallel on many-core systems may cause an error such as
       ;; "mv: cannot stat 'examples/c/reccalc/scan.stamp.tmp': No such file or
       ;; directory".  See <https://bugs.gnu.org/36238>.
       #:parallel-build? #f
       ;; Similarly, when building tests in parallel, Make may produce this error:
       ;; "./examples/c/reccalc/scan.l:13:10: fatal error: parse.h: No such file
       ;; or directory".  Full log in <https://bugs.gnu.org/36238>.
       #:parallel-tests? #f))
    (native-inputs `(("perl" ,perl)
                     ;; m4 is not present in PATH when cross-building.
                     ("m4" ,m4)))
    (inputs `(("flex" ,flex)))
    (propagated-inputs `(("m4" ,m4)))
    (home-page "https://www.gnu.org/software/bison/")
    (synopsis "Parser generator")
    (description
     "GNU Bison is a general-purpose parser generator.  It can build a
deterministic or generalized LR parser from an annotated, context-free
grammar.  It is versatile enough to have many applications, from parsers for
simple tools through complex programming languages.")
    (license gpl3+)))

(define-public bison-3.0
  (package
    (inherit bison)
    (version "3.0.5")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://gnu/bison/bison-"
                          version ".tar.xz"))
      (sha256
       (base32
        "0f7kjygrckkx8vas2nm673592jif0a9mw5g8207f6hj6h4pfyp07"))))))
/td></tr>
<tr><td><span title='2020-05-25 00:00:28 +0200'>2020-05-25</span></td><td><a href='/guix/commit/tests/git.scm?id=c098c11be8eb9e0c12be42640721e3cb21c37628'>git: Add 'commit-relation'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/git.scm (commit-relation): New procedure.
* tests/git.scm ("commit-relation"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-12-27 13:52:49 +0100'>2019-12-27</span></td><td><a href='/guix/commit/tests/git.scm?id=785af04a7574867dc940c791daa938a2432d0450'>git: 'commit-difference' takes a list of excluded commits.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/git.scm (commit-closure): Add 'visited' optional parameter.
(commit-difference): Add 'excluded' optional parameter; pass second
argument to 'commit-closure'.
* tests/git.scm ("commit-difference, excluded commits"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-23 10:38:43 +0200'>2019-09-23</span></td><td><a href='/guix/commit/tests/git.scm?id=873f6f1334ab06a69e768a8aea0054404237542f'>git: Add 'commit-difference'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/git.scm (commit-closure, commit-difference): New procedures.
* guix/tests/git.scm, tests/git.scm: New files.
* Makefile.am (dist_noinst_DATA): Add guix/tests/git.scm.
(SCM_TESTS): Add tests/git.scm.
</span></span></td><td>Ludovic Courtès</td></tr>