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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Amin Bandali <bandali@gnu.org>
;;; Copyright © 2020 Brett Gilio <brettg@gnu.org>
;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 lean)
#:use-module (gnu packages multiprecision)
#:use-module (guix build-system cmake)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix packages)
#:use-module (guix git-download))
(define-public lean
(package
(name "lean")
(version "3.23.0")
(home-page "https://github.com/leanprover-community/lean")
(source (origin
(method git-fetch)
(uri (git-reference (url home-page)
(commit (string-append "v" version))))
(file-name (git-file-name name version))
(sha256
(base32
"09mklc1p6ms1jayg2f89hqfmhca3h5744lli936l38ypn1d00sxx"))))
(build-system cmake-build-system)
(inputs
(list gmp))
(arguments
`(#:build-type "Release" ; default upstream build type
;; XXX: Test phases currently fail on 32-bit sytems.
;; Tests for those architectures have been temporarily
;; disabled, pending further investigation.
#:tests? ,(let ((arch (or (%current-target-system)
(%current-system))))
(not (or (string-prefix? "i686" arch)
(string-prefix? "armhf" arch))))
#:phases
(modify-phases %standard-phases
(add-after 'patch-source-shebangs 'patch-tests-shebangs
(lambda _
(let ((sh (which "sh"))
(bash (which "bash")))
(substitute* (find-files "tests/lean" "\\.sh$")
(("#![[:blank:]]?/bin/sh")
(string-append "#!" sh))
(("#![[:blank:]]?/bin/bash")
(string-append "#!" bash))
(("#![[:blank:]]?usr/bin/env bash")
(string-append "#!" bash)))
#t)))
(add-before 'configure 'chdir-to-src
(lambda _ (chdir "src") #t)))))
(synopsis "Theorem prover and programming language")
(description
"Lean is a theorem prover and programming language with a small trusted
core based on dependent typed theory, aiming to bridge the gap between
interactive and automated theorem proving.")
(license license:asl2.0)))
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